The shape and size of nucleotides are important in the structure of double-stranded DNA because it allows DNA replication and protein synthesis to occur.
What is DNA?This is referred to as deoxyribonucleic acid and contains the genetic instructions in organisms.
The double stranded shape and size allows for a copy of DNA to be made during reproductive processes. This is therefore the reason why DNA has such shape and size in this context.
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which of the following terms refer to the practicle application of scientific knowledge
Answer:
Technology is defined as the application of scientific knowledge for practical purposes, especially in industry
Explanation:
hope it helpsʕ •ᴥ•ʔ
Traditionally, zoologists have placed birds in their own class, Aves. More recently, molecular evidence has shown that birds are more closely related to reptiles than their anatomy reveals. Genetically, birds are more closely related to crocodiles than crocodiles are to turtles. Thus, bird anatomy has become highly modified as they have adapted to flight, without their genes having undergone nearly as much change. Taxonomically, what should be done with the birds?
A: The rest of the reptiles should be reclassified as a subclass within the class Aves.
B: Birds should be reclassified, and their new taxon should be the subclass Aves. Genetic similarity trumps morphological dissimilarity in cases where morphological traits are uninformative.
C:The classification scheme should remain the same because of historical precedence.
D: The traditional stance is correct. Such dramatic morphological change as undergone by birds indicates that birds should be placed in their own order, separate from the reptiles.
During which time period was Earth a ball of hot liquid?
Answer:
Approximately 4.5 billion years ago (The Hadean Eon) .
Explanation:
The Geologic Timescale's "Hadean" era, named for Hades (Hell, well, we weren't feeling very imaginative that day), encompasses the Earth's origins. According to the evidence we currently have, the Earth's surface at that time was mostly made up of lava lakes and molten rock.
How would that appear? The first 500 Ma of Earth's history have left very little stuff behind. You may, however, take a peek at our moon, which similarly went through a lava lake period before freezing. You'll see that it has both dark and bright landscape.
The lighter material is known as highlands and is primarily composed of anorthosite. Anorthose, a kind of plagioclase feldspar, is the main component of the igneous rock known as anorthosite. According to what we know, the Moon too had a lava lake era. Liquid rocks exposed at the surface were cooling and fractionally crystallizing throughout this lengthy period. A certain order of minerals was developing. And these minerals were dividing up according to the density of the melt; less dense minerals, like plagioclase (Anorthose is a plagioclase), floated to the surface in a sort of incandescent crystal slush slurry and formed a sort of lid there. Denser minerals, like olivines, were sinking to the bottom of the lava lake to form cumulates. As the lava lakes cooled, anorthosite piled on top in successive layers, thickening the mass of floating crystals. Large meteor impacts occasionally pierced this anorthosite crust, and part of the thicker (and darker) underlying liquid accumulated in the ensuing craters to produce those roundish dark patches (Maria), which are now filled with basalt.
After the lava lakes froze/crystallized over, such characteristics were maintained since there was no significant tectonic activity on the Moon (except for the local meteor impacts which screw things up a bit).
Answer:
I hope this helps.
Explanation:
What role does cellular respiration play in the carbon cycle?
O A. Animals absorb oxygen.
O B. Plants release oxygen.
O C. Plants absorb carbon dioxide
D. Animals produce carbon dioride
Answer:
D. animals produce carbon dioxide
Use the image below: what process is happening in this model ?
what is internet? write down the requirements to established internet.
Answer:Telephone line, modem, computer, and an ISP are the things needed to connect to the Internet
Explanation:
1. How to prepare 15ml of 20% w/v NaCl solution?
2. How many grams of NaCl are required to prepare 45g of NaCl solution (35%
w/w)?
3. Calculate the molarity of 0.289 moles of FeCl3 dissolved in 120 ml of
solution.
4. How many moles of NaCl are present in 600 ml of a 1.55 M NaCl solution?
5. What is the molarity of 650 ml of solution containing 63 grams of NaCl?
6. How many grams of CaCO3 are needed to produce 500 ml of 1.66 M CaCO3
solution? How to prepare this solution?
7. What volume of a 0.88 M solution can be made using 130 grams of FeCl2?
8. Prepare 70ml of 1.5M NaCl solution from a 3M solution.
9. What is the volume of a 2 M H2SO4 solution prepared using 3 ml of 6 M
H2SO4 solution?
10.What is the molarity of a 17 ml solution used to prepare 65 ml of 2.4 M
solution
Weight by volume is a concentration determining the method of the solution. 20 % w/v NaCl is prepared by mixing 3 gm in 15 mL.
What is concentration?Concentration is the amount of the solute or the solvent present in the solution. It can be calculated by molarity, molality, w/v, etc.
If the solution is 20% w/v then,( W ÷ 15 ) × 100=20
W = (20 × 15) ÷ 100 =3g
Hence, 3 gm NaCl must be added to 15 mL solution to make it 20% w/v.
Grams of NaCl for 35 % w/v is calculated as:( w ÷ 45) × 100=35
w = (35 × 45) ÷ 100
= 15.75 grams
Hence, 15.75 gm NaCl is required to prepare 45 gm solution.
Molarity is calculated as:Molarity = number of moles ÷ volume in litres
Given,
Moles = 0.289
Volume = 0.12L
Molarity = 0.289 ÷ 0.12 = 2.4M
Hence, 2.4 M is the molarity of 120 mL of ferric chloride solution.
Moles of sodium chloride is calculated as:Number of moles = Molarity × Volume in litres
Given,
Volume = 0.6 L
Molarity = 1.55 M
Substituting values:
Number of moles = 1.55 × 0.6 = 0.93Moles
Hence, 0.93 moles are present in 1.55 M solution.
Molarity of 63 gm NaCl is calculated as:Given,
Mass = 63 gm
Volume = 0.65 L
Molarity = mass ÷ (molar mass × volume)
M = 63 ÷ ( 58.44 × 0.65)
= 63 ÷ 37.98
= 1.66 M
Hence, 1.66 M is the molarity.
Mass of calcium carbonate from molarity is calculated as:Given,
Molarity = 1.66 M
Volume = 0.5 L
Mass of calcium carbonate = Molarity × molar mass × volume
1.66 × 100.0869 × 0.5 = 83.07 gm
Hence, 83.1 gm is mass required of calcium carbonate to make 1.66 M solution.
Volume of solution from molarity is calculated as:Given,
Mass of ferrous chloride = 130 gm
Molar mass of ferrous chloride = 126.751
Molarity = 0.88 M
Volume = mass ÷ (molar mass × molarity)
= 130 ÷ (126.751 × 0.88)
= 1.16 mL
Hence, 1.16 mL solution can be prepared.
The dilution formula is used to calculate the initial volume as:M1 = 3 M
M2 = 1.5 M
V2 = 70 mL
V1 is calculated as:
M1V1 = M2V2
V1 = (1.5 × 70) ÷ 3
= 35 mL
Hence, 35 mL of stock solution is required to prepare the 1.5 M solution.
The final volume to prepare the solution is calculated as:M1 = 6 M
V1 = 3 mL
M2 = 2 M
V2 is calculated as:
M1V1 = M2V2
(6 × 3) ÷ 2 = V2
= 9 ml
Hence, 9 mL is the volume of the desired solution.
The molarity of 17 mL solution is calculated as:Given,
V1 = 17 mL
M2 = 2.4 m
V2 = 65 mL
M1V1 = M2V2
M1 = (2.4 × 65) ÷ 17
= 9.1 M
Hence, 9.1 M is the molarity of the solution that is used to prepare 2.4 M solution.
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If you were on the Moon, how would you feel?
heavier
lighter
tiny. . huge
Answer:
tiny sorry if I'm wrong
Explanation:
Whats the correct answer answer ASAP for brainlist
In recent times, we now know tectonic plates move and cause continents to separate and collide over many years. Given this fact, do you think
governments should have a plan or procedure in place to deal with the movement of the continents? Why or why not?
i’ll give brainly
I think the government should have a plan or procedure in place to deal with the movement of the continents so as to curb species extinction.
What is Climate?This is referred to as the atmospheric condition of a place for a long period of time.
Drifting of continents leads to a new climate being present which will affect life forms. If they are unable to adapt they may all die out and go extinct thereby disrupting the ecosystem which is why a plan should be put in place.
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What’s the correct answer for this question?
Answer:
those answer was correct and write is called correct answer
What measurement reflects the extent to which your lifestyle contributes to the production of greenhouse gases?
Answer:carbon footprint
Explanation:
that’s the answer trust me :)
name the water resource from where river orginatehelp me
Answer:
The source is mainly called headwater and its examples are waterfalls, groundwater, rainfall, and snowmelt in mountains. Basically, it is affected by the gravity
Explanation:
Hello!
Water resources from which rivers originate :
Snowmelt from mountainsGroundwaterRainwaterWhy would it be easier for a doctor to tell that someone has a viral infection when the virus is in the
lytic cycle?
Answer: doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a "culture test" of tissue to identify bacteria or viruses.
Explanation:
Which of these is NOT a protein function?
A. Hemoglobin carries oxygen to the organs and tissues.
B. Enzymes speed up reaction rates.
C. Antibodies fight infections and diseases.
D. Phospholipids provide structural support to the cell membrane.
Answer:
D. Phospholipids provide structural support to the cell membrane.
Explanation:
Phospholipids are a type of lipid, not protein. Proteins are composed of amino acids, while lipids are composed of fatty acids.
Why do organisms have varying traits, like different colored eggs?
What might drive change in egg color in natural population?
Is this experiment an example of natural or artificial selection and why?
the organisms have varying traits, like different colored eggs because of the natural selection.
What is the process of natural selection?Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.
the color change of an egg occurs by natural selection and also by genetic variability. since the environment will select the best ones to survive and mutations will occur. Natural selection will forcefully change the environment causing only a few species to survive.
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What is one way that scientists use imagination to guide their creativity when they conduct research?
They write preliminary lab reports with imagined data and results.
They sketch equipment setups before performing experiments.
They create computer programs to manage experimental data.
They visualize possible solutions before they design experiments.
Scientists study and use their knowledge to research the topic. They use their imagination to visualize possible solutions before they design experiments. Thus, option D is correct.
Who are scientists?Scientists are the people that are involved in utilizing their knowledge in research to analyze the collected and observed data to conclude the hypothesis or the thesis statement.
They use their knowledge along with their imagination as they have to be creative to reach the result of the issue. They design the experimental setups based on their pre-assumed results and possible solutions.
It is an important factor in research as it allows the scientists to work in the right direction to achieve the possible outcome by linking all the perspectives involved.
Therefore, the scientist uses imagination to reach a possible solution.
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What is mass?
how much gravity pulls an object
how often an object rotates
how much energy an object needs
Ohow much matter makes up an object
Answer:
Mass is the amount of matter in a substance measured in kilograms
Answer:
how much matter makes up an object
Explanation:
how has urbanization contributed to the decline in birth rates?
Answer: b
Explanation:
briefly discuss how you believe stress may have negatively impacted your relationship with food.
Consider a block that is resting in between two springs (there is a dampener for those that care, so just go with it). The compressed side will push back if the block is pushed to either side, whereas the stretched side will pull back into the resting position. Once set free, they will oscillate until they are at rest again. However, the springs will ultimately alter and their resting position will alter if you consistently lean to one side.
The parasympathetic nervous system slows you down, absorbs and stores resources, repairs damage, and resists environmental demands for change. It is one of your two autonomic nervous system springs. You move faster thanks to the sympathetic system, which also releases energy and resources in response to environmental demands for change.
Your brain rapidly causes the adrenalin glands to release epinephrine and norepinephrine, which boost the sympathetic nervous system, when a threat or stressor is present. Your SS outweighs the PS, just like the springs. You actually go through the fight-or-flight reaction. Elevated heart rate, blood pressure, respiratory rate, glycogen breakdown, and changes in blood and air flow all work to get the body and brain ready to work at their best. Your senses become more acute, your eyes enlarge to improve your ability to see in the dark and detect movement, and the only exocrine process that is unaffected is perspiration. Acute stress causes this type of stress response, which reduces appetite.
Your systems must work very hard in this state, though. It gives you the motivation to either remove the threat or flee from it in a life-or-death emergency. Your springs will rebound once the threat has passed. As your PS pushes past the balance, there is a "lashback" of fatigue and sleepiness. Your body then attempts to return to homeostasis. You experience your post-workout munchies at this time.
However, the fight or flight response slows down to prolong the heightened wakefulness in cases of persistent stress. The stress reaction also includes the release of corticosteroids. These hormones enable you to respond in brief stressful situations. They flood the circulation with enormous amounts of glucose and fatty acids. However, these stress hormones accumulate and persist in chronic stress. This causes a rise in appetite and a yearning for salt, sugar, and fats. components that stress depletes but are crucial.
The balance becomes dysfunctional in this situation. Individual balances are out of whack, but they nonetheless exert a similar amount of effect. The psychological aspects of this imbalance frequently play a role. You may feel more hungry and be less active mentally if you are trying to escape the tension. Fighting may cause you to spend all of your energy on cerebral activities rather than other bodily processes like digestion, which will make you feel less hungry. You normally enter significant depression area if you chance to encounter the freeze response, which occurs when there is no way that you can conceive of to flee or defend yourself. Because to freeze is to completely lose all hope when one is entrapped and outnumbered.
Chronic stress causes tolerances and sensitivities, which have a tendency to reinforce one another and make it more difficult to reverse the situation. This typically makes the mental condition worse, which feeds the cycle.
Fun fact: fear can actually cause death. However, it isn't fear that kills them. The strong PS reaction is what causes your heart to stop beating. The stress of losing a life partner, sometimes known as sadness, is another reason why an elderly widow or widower will degenerate and pass away suddenly not long after the loss.
Answer: Stress may negatively impact someone’s relationship with food by having that person’s emotions all mixed up causing them to not care about the things that they cared about before. In some cases having too much stress upon someone causes them to eat more than they used to leading them to gain weight and live an unhealthy life.
*Hopefully this helped a bit. Have good day! ♥️*
Explain which of the 4 macronutrients do you think is most important to the proper functioning of your body?
The four macronutrients which are most important for the proper functioning of your body are as follows:
CarbohydratesProteinsFatsWaterWhat are Macronutrients?
Macronutrients may be defined as the nourishing elements of food that the body requirements for energy and to possess the body's structure and functional systems.
Carbohydrates are the main source of energy for the body. It fuels your brain in the form of glycogen, kidneys, central nervous system, heart muscles, and all other various body parts and structures via glucose.
Proteins are required for the optimal growth and development of an individual. It also assists in the repair of the injured or damaged cells into newly synthesized ones.
Fats are the class of macronutrients that are the chief source of fatty acids that cannot be synthesized by our body itself. The components of fats such as cholesterol, triglycerides, etc accumulate energy, protect us, and safeguard our necessary organs.
Water is an ultimate requirement of each and every organism. It serves as a lubricant, relieves constipation, and removes impurities out of the body via urine, sweat, etc.
Therefore, it is well described above.
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What can happen after a lake receives a large input of a limiting nutrient?
A feedback system controls the menstrual cycle. How does the female body
respond to a drop in luteinizing hormone?
OA. By increasing the progesterone level
O B. By preparing for the next cycle
O C. By increasing the testosterone level
OD. By shedding the uterine lining
The female body responds to a drop in the luteinizing hormone B. By preparing for the next cycle.
The luteinizing hormone remains at lower levels most of the time during the menstrual cycle. It reaches the highest levels around the 14th day of the menstrual cycle. It helps in the formation of follicles with the help of estrogen.An increase in LH triggers the increase of progesterone level and helps in preparing of corpus luteum.After the formation of the corpus luteum and the release of follicles, the level of LH drops. When the level of LH further decreases, this triggers the shedding of the uterine lining as no pregnancy takes place.Thus, the low levels of LH are an indication of
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QUESTION 1 (5 marks) A molecule of messenger RNA (mRNA) has just been synthesized and processed in the nucleus of human cell with nucleotide sequence shown below: AUGUUAGCUGGGUAG (1)Provide the template DNA in which this mRNA was transcribed from. (1 mark) (2)What is the anticodon for the tRNA that attaches to the second codon of the mRNA? (1 mark) Describe the function of mRNA during translation (iii) (1 mark) (iv) How many amino acid will this segment represent? (1 mark) (v) Name the amino acids produced using the standard genetic code provided. (1 mark) . ( 1 mark )
1) DNA Template strand: TACAATCGACCCATC. 2) Anticodon: AAU. 3) mRNA carries genetic information to build the protein. 4) 5 amino acids. 5) Amino acids: Met, Leu, Ala, Gly, Tyr.
1)
What is the template strand?When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments:
The coding strand that goes in 5' to 3' direction The complementary strand -template strand- that grows in 3' to 5' direction .The template strand is the one that is going to be complemented by the mRNA.
mRNA ⇒ AUGUUAGCUGGGUAG
DNA ⇒ TACAATCGACCCATC
Remember that pairs are as follows
DNA RNA
T → A
A → U
G → C
C → G
2)
What is an anticodon?The anticodon is the sequence of three nucleotides that couples with the mRNA codon.
Each tRNA has two important sites. One of them is the anticodon that couples with the codon of the mRNA molecule. The other one carries the amino acid that is going to be addeded to the protein.
1st 2nd 3th 4th 5th
mRNA codons ⇒ AUG UUA GCU GGG UAG
tRNA anticodon ⇒ AAU
3)
What is translation?Translation is the stage of protein synthesis during which mRNA carries genetic information needed to synthesize the new protein in the cytoplasm.
Steps,
1- The formed mRNA moves to the cytoplasm through the nucleus membrane pores.
2- Once in the cytoplasm, mRNA meets a ribosome, the primary structure for protein synthesis.
3- Ribosomes are organelles composed of the association of proteins with rRNA and tRNA. They can be found in the rough endoplasmic reticulum or floating in the cytosol.
4- While the ribosome reads mRNA strain from its 5' extreme to 3', tRNA adds the correct amino acids to build the polypeptide.
The function of mRNA during translation is to take genetic information needed to build the protein.
4)
How many amino acids are determined per codon?Each codon codes for only one amino acid.
There are cases in which different codons code for the same amino acid, but a single codon always codes for one amino acid.
mRNA codons ⇒ AUG UUA GCU GGG UAG
Amino acids ⇒ Met Leu Ala Gly Tyr
1 2 3 4 5
This mRNA segment represents 5 amino acids.
5)
Amino acids ⇒ Met Leu Ala Gly Tyr
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What environmental condition contributed to the heat wave experienced in europe and the thousands of deaths in france? a. polluted water b. sewage c. air pollution d. a and b please select the best answer from the choices provided a b c d mark this and return
Air pollution contributed to the heat wave experienced in Europe and the thousands of deaths in France.
Particles that are both solid and liquid, as well as some gases that are suspended in the air, are what produce air pollution. These gases and particles can be produced by factories, volcanoes, wildfires, dust, pollen, and vehicle and truck emissions.In Europe, a heat wave is a period of exceptionally hot weather. Several deaths caused by excessive heat and associated health problems were documented during this time. The air pollution caused the increase of greenhouse gases leading to heat waves. The primary reason for this temperature increase is global warming.The Earth would have experienced nighttime temperatures below freezing if not for the greenhouse effect, which keeps the atmosphere's temperature stable.learn more about Air pollution here: https://brainly.com/question/9420026
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In a healthy animal, antidiuretic hormone would need to be released into the bloodstream when
In a healthy animal, antidiuretic hormone would need to be released into the bloodstream when there is low volume of water in the body.
What is the antidiuretic hormone?The antidiuretic hormone, ADH, is a hormone produced by the pituitary gland which helps to control the volume of urine made by the body.
The antidiuretic hormone, ADH is released to increase the reabsorption of water in the kidneys.
Therefore, the antidiuretic hormone helps to control urine volume.
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Identify each body part labeled in the diagram.
1
2
3
The body parts labeled in the diagram are the mouth, operculum, and fins respectively.
Parts of a fishThe image in the illustration is that of a body fish.
The part labeled 1 is the mouth.
The part labeled 2 is the operculum. It covers the gill of the fish.
The part labeled 3 are the fins. The fins include ventral, lateral, and an-al fins.
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Answer:
1- jaw
2- gills
3- fins
Explanation:
right on edge
PLS HELP wil give 50p0ints if you answer
In the space provided, describe the similarities and differences between the seasonal changes of the oak tree in Florida and the oak tree in Maine make it Conclusions
Northern red oak are natives to Maine while others such as shumard oak, willow oak etc are native to Florida.
What is Season?These are the divisions of the year which are based on the weather patterns and daylight hours.
Florida has long periods of summer than Maine which is why the oak trees in the region are taller than that of Maine due to increased photosynthetic activity. However, oaks found in both regions have heavy acorns which is the similarity.
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A scientist needs to use a model to study how planets change speed as they orbit the Sun. The model must be able to work with many variables and math equations to represent the planets' motions.
Which of the following would be the best kind of model for the scientist to use?
A.
a list of information about each planet's orbit
B.
an interactive model of the planets' orbits on a computer
C.
a drawing of the planets in order of distance from the Sun
D.
a 3-D styrofoam model of the planets in order of size
The best kind of model for the scientist to use is an interactive model of the planets' orbits on a computer.
What is the law of orbits?Kepler's first law, also known as the law of orbits, describes the shape of planetary orbits. According to this law, the planet's orbits around the Sun are elliptical, despite having very small eccentricities.
For this reason, it is necessary to know all the orbits of the planets in an interactive way, since according to Kepler's law, the orbits decrease over time.
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A population of animals is at Hardy-Weinberg equilibrium. The frequency of the dominant allele Q is 0.70 and the frequency of the recessive allele q is 0.30. What percentage of the population is heterozygous for this gene?
A. 18%
B.9%
C. 42%
D. 49%
Answer:42%
Explanation:
The percentage of the population is heterozygous for this gene is 42%. The correct option is C.
What is Hardy Weinberg law?According to the Hardy-Weinberg equilibrium, if no unfavourable influences exist, genetic variation in a population will remain stable from one generation to the next.
Calculating the genetic diversity of a population at equilibrium can be done using the Hardy-Weinberg equation. A fundamental idea in population genetics that G. H. Hardy and Wilhelm Weinberg separately described in 1908 is now known as the Hardy-Weinberg equation.
The importance of the Hardy-Weinberg law is that it provides a way to assess how accurately a population's genetic makeup has changed over time. We could only determine if the population was in Hardy-Weinberg equilibrium with the genetic makeup.
We know that,
[tex]p^2+2pq+q^2=1[/tex]
Here,
p = 0.70
q = 0.30
So,
[tex](0.70)^2+2pq+(0.30)^2=1[/tex]
2pq = 42%
Thus, the correct option is C.
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