b) the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
In the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
TRANSCRIPTION:
Transcription is the first stage of gene expression which involves the synthesis of mRNA molecule from a DNA template. The double-stranded DNA molecule is separated and each single strand serves as a template for synthesizing a complementary mRNA strand. Adenine pairs Thymine while Guanine pairs with Cytosine in the DNA molecule but in the mRNA strand, uracil instead of thymine is paired with adenine. Therefore, in the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
Which was Charles Darwin’s contribution to the study of biology?
He was the first person to recognize that organisms change over time.
He believed that organisms adapted through the inheritance of acquired traits.
He explained how traits are passed from parents to offspring.
He proposed that natural selection is the primary mechanism of evolution.
Answer:
d
Explanation:
Charles Darwin proposed that natural selection is the primary mechanism of evolution. The correct option is D.
What is natural selection?Natural selection is the method by which living organism populations adapt and change.
Individuals in a population are innately variable, which means they diverge in the some ways. This variation indicates that some people have traits that are better adapted to their surroundings than others.
Natural selection, Darwin proposed, is a mechanism for evolution in which heritable traits that help support life reproduce and survive are becoming more prevalent in a population over time.
Natural selection occurs when genes that confer a survival or reproductive advantage are handed down and persist in a population, whereas genes that result in lower survival or fewer offspring are becoming less common.
Thus, the correct option is A.
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The process of meiosis involves ______ cell divisions and produces ______ daughter cells
Answer:
The process of meiosis involves two cell divisions and produces two daughter cells.
Is there a future treatment for thalassemia ?
Answer:
....No one can be sure, but probably!
Explanation:
Scientists are amazing and can always find cures to everything...
Please mark Brainliest!!!
Answer:
Future treatments for beta-thalassemia will depend on the benefit/risk/cost ratios for conventional transfusion and iron chelation [70], γ-globin induction [186], allogeneic bone marrow transplantation [187] and gene therapy [170], and the availability of these treatments in the low-income countries
Explanation:
Is cellular respiration aerobic or anaerobic and give one reason why
I will be giving a brainless for a right answer
Answer:
Cellular respiration can occur in both aerobically or anaerobically. During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. But in cellular respiration, glucose and oxygen reacts to form ATP.
What is a hypotesis ?
Answer:
A hypothesis is an educated guess or a guess you make based on the information you already know.
Answer:
a hypothesis is a proposition made for basing without any evidence or truth.
example
my hypothesis is that she will win the race.
PLZ PLZ PLZ SOMEONE HELP ME I NEED THESE TO BE CORRECT WILL GIVE BRAINLIST AND 75 POINTS!!!!!!(If there ALL right)
Which process enables embryos to develop various body parts from a single zygote?
cell breakdown
cell differentiation
reproduction
meiosis
If the test tube below were allowed to stand at room temperature for several hours, what process would be occurring in the test tube? (IMAGE 1)
photosynthesis
fermentation
oxidative respiration
evolution
Organisms that may make use of anaerobic respiration include
animals
bacteria
yeast
all of the above
Select the answer that correctly identifies the processes in aerobic cellular respiration as they occur.
Glycolysis, electron transport chain, fermentation
Glycolysis, Krebs cycle, electron transport chain.
Krebs cycle, glycolysis, electron transport chain.
Glycolysis, fermentation, electron transport chain.
Use the following diagram to answer the question:(IMAGE 2)
The gas released in this investigation is
oxygen
nitrogen
hydrogen
carbon dioxide
Which statement regarding cellular respiration is correct?
Fungi and bacteria carry out aerobic cellular respiration only.
All living organisms carry out some form of cellular respiration.
Cellular respiration in plants occurs only during the day.
Only plants and animals use glucose and oxygen for cellular respiration.
Which statement regarding cellular respiration is correct?
Fungi and bacteria carry out aerobic cellular respiration only.
All living organisms carry out some form of cellular respiration.
Cellular respiration in plants occurs only during the day.
Only plants and animals use glucose and oxygen for cellular respiration.
Which statement regarding cellular respiration is correct?
Fungi and bacteria carry out aerobic cellular respiration only.
All living organisms carry out some form of cellular respiration.
Cellular respiration in plants occurs only during the day.
Only plants and animals use glucose and oxygen for cellular respiration.
The diagram below represents some events that take place in plant cells.(IMAGE 3)
In which organelle would the above events most likely occur?
ribosome
mitochondrion
chloroplast
cytoplasm
Cellular respiration occurs in a series of steps. If pyruvate enters the mitochondrion, how much total energy can we assume will be produced?
2 molecules of ATP
14 molecules of oxygen
8 molecules of pyruvic acid
38 molecules of ATP
The graph below represents the absorption spectrum of chlorophyll.(IMAGE)
The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum?
green and yellow
orange-red and violet-blue
yellow and orange-red
violet-blue and green
How do the number of chromosomes in an organism's egg cells compare with the number of chromosomes in her body (somatic) cells?
There are twice as many chromosomes in egg cells.
The number of chromosomes is the same in both.
The number of chromosomes depends on the size of the scorpion.
There are half as many chromosomes in egg cells.
PLS, Someone help me I need these right!!!Also the images are in order!!!
Answer:
1. Cell differentiation
2. Fermentation
3. Yeast
4. D option
5. Oxygen
6. All living organisms carry some sort of cellular respiration
7. Mitochondria
8. C
Explanation:
The embryo undergoes cell differentiation to develop various body parts from a single zygote. Therefore, the correct options are 1 (B), 2 (B), 3 (C), 4 (D), 5 (A), 6 (A), 7 (B), 8 (B), 9 (B), 10 (B), 11 (D), 12 (B), and 13 (A).
What are cells?
Cells are basic unit of life. The cell which is responsible for the development of an organism is zygote. The zygote undergoes cell differentiation to develop various body parts and the whole organism.
If the test tubes were allowed to stand at room temperature for several hours, this process is called fermentation. In this process, anaerobic respiration takes place. Organisms that may make use of anaerobic respiration includes yeast.
The process of cellular respiration includes all of these processes such as glycolysis, fermentation, and electron transport chain.
During the process of photosynthesis, oxygen gas is released as a product with the formation of glucose which is utilized in respiration.
The process of cellular respiration is an important biochemical reaction which takes place in all forms of living organisms. During this process, glucose is oxidized to form energy in the form of ATP.
The process of cellular respiration takes place in the mitochondria of cells. Mitochondria is known as the powerhouse of cell as it produces ATP.
38 molecules of ATP are produced by the process of cellular respiration in the mitochondria of cell. These ATP are utilized in various biochemical reactions.
Orange-red and violet-blue regions of the spectrum are indicated in the given image which shows the energy used in the photosynthesis. These are the most active regions of light spectrum.
The number of chromosomes in an organism's egg cells is half as many chromosomes present in other somatic cells of the body. Gametes are haploid in nature.
Therefore, the correct options are 1 (B), 2 (B), 3 (C), 4 (D), 5 (A), 6 (A), 7 (B), 8 (B), 9 (B), 10 (B), 11 (D), 12 (B), and 13 (A).
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Uranium-235 is best used to find the age of: :
Answer:
rocks
Explanation:
i asked my teacher she said yes
Some cells in your body carry more than one copy of its genome (they have multiple nuclei). What are these cells called ?
Answer:
Interestingly, some cells in the body, such as muscle cells, contain more than one nucleus ((Figure)), which is known as multinucleated. Other cells, such as mammalian red blood cells (RBCs), do not contain nuclei at all.
Explanation:
Also I searched this up. I hope this helps :)
The diagram shows a pump. Which labels can replace X and the Y in the diagram?
X: potassium, Y: sodium
X: sodium, Y: potassium
X: sodium, Y: calcium
X: calcium, Y: potassium
Answer:
B
Explanation:
Answer:
B
Explanation:
right on edge assignment 2020
Which of the following is not a major factor in beach erosion?
O sand supply
O none are factors
O severe storms
O all are factors
O sea level rise
Answer:
im pretty sure they all are
Explanation:
Sickle cell disease is a hereditary mutation that causes the red blood cells to deform, decreasing their ability to carry oxygen. Based on the image, what kind of mutation occurs to cause sickle cell disease?
a. deletion
b. duplication
c. substitution
d. translocation
Answer: Substitution.
Explanation: The image shows a substitution mutation. Base A and base T switched position in the gene sequence.
Answer:
substitution
If the Earth did not have internal energy, which of the following carbon cycle process would not be possible?
respiration
rock formation
consumption
burning fossil fuels
Answer:
rock formation
Explanation:
The Earth’s internal energy provides the means for the parts of the carbon cycle that involve plate tectonics, such as rock formation and subduction.
The molecule BPG binds to the deoxy form of hemoglobin in the central cavity. Explain why that makes sense for oxygen delivery and why BPG is said to stabilize the deoxy state.
Answer:
Oxygen binds with the hemoglobin to carry the blood to different body parts through the circulatory system. The binding of the oxygen to Hb is regulated by the Bisphosphoglycerate or BPG molecule. It is bounded to the deoxy form of hemoglobin.
BPG binds with deoxy Hb in the central cavity of the four subunits which decreases the affinity to hemoglobin. The binding of BPG stabilizes T form or deoxy-Hb as the central cavity is larger in T form in comparison to the R state. R state has a low affinity to oxygen due to relatively smaller central cavity.
The mouse population would most likely decrease if there were?
Answer: I want to say 1 but I think that it is 4
Explanation:
The mouse population would likely decrease if there were a decrease in the amount of sunlight. The correct option is 4.
What is a food web?All the food networks in a single ecosystem make up a food web. Each organism in an ecosystem is a link in a number of food chains. Energy and nutrients can go along different food chains as they move through the ecosystem.
A food web is a comprehensive account of the species that make up a community and their interactions with one another. It demonstrates how energy is moved along food chains that are connected to other food chains.
The mouse population here depends on the grass, if there were no grass, there will be a decrease in the mouse population.
Therefore, the correct option is 4, a decrease in the amount of sunlight.
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Who do the hurricane hunters give data to?
A) National weather service in Miami Florida
B) National hurricane center in Norman Oklahoma
C) National Hurricane Center, in Miami Florida
D) National weather service in Norman Oklahoma
Answer:
C) National Hurricane Center, in Miami Florida
Explanation:
"Hurricane hunters" refer to people who gather data about tropical cyclones by actually flying into them. This allows them to obtain the actual barometric pressure of hurricanes, including the wind flow speed. The data gathered are then sent to the "National Hurricane Center," which is located in Miami Florida. It has the mission to analyze dangerous storms in order to save many lives by warning people and providing weather forecasts. They also monitor those locations with disturbed weather conditions.
Hurricane hunters give data National Hurricane Center, in Miami Florida. The correct option is C.
Thus, The National Hurricane Centre (NHC), located near Miami, Florida, receives the majority of the data collected by the U.S. Air Force and NOAA (National Oceanic and Atmospheric Administration) aircraft known as the "Hurricane Hunters" as they fly into hurricanes.
Tropical storms and hurricanes in the Atlantic and Eastern Pacific basins must be tracked and forecast by the NHC.
Meteorologists at the NHC use the data gathered by the Hurricane Hunters to enhance hurricane track and intensity forecasts.
Thus, Hurricane hunters give data National Hurricane Center, in Miami Florida. The correct option is C.
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A topography map is used to study the changes in vegetation associated with different elevations. Which individual most likely uses them for this purpose? a scientist a businessman a government official a construction engineer
A Scientist.
Topography is a field of geoscience and planetary science and studies the forms and features of land surfaces. Topography maps are extremely useful to scientists to show geographic features above and below sea level, including the geology of a region
Answer:
The answer would be Science
Explanation:
It would be science becuase, the goverment, businessman and construction workers would not care about plant change but sciencntist do! I also took it on Edg 2020 and it was right.
SOMEONE HELP ME PLZ!!!!!!!!!!!!!!!!
Answer:
The false answer is D (or the last one)
Explanation:
Prokaryotic cells are different from eukaryotic cells because they do not contain membrane-bound organelles, thus making the last statement false.
If a substance is of higher concentration inside the cell than outside the cell and the substance can move through the cell membrane, the substance will
Answer:
Passive transport is a naturally-occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration.
Pls help me with this. Just the second one. Thank you!
Answer:glucose
Explanation:
Which of the following observations demonstrates that light waves are electromagnetic and not mechanical?
Group of answer choices
A. sunlight can pass through gas
B. sunlight can pass through a solid
C. sunlight can pass through a vacuum
D. sunlight can pass through a liquid
Answer:
c...........
Explanation:
Answer:
b
Explanation:
cuz im different
Which of these is an example of active transport?
A Glucose molecules move against the concentration gradient across the cell membrane with the help of ATP.
B. Carbon dioxide molecules diffuse freely across the cell membrane.
C. Water molecules move down the concentration gradient across the cell membrane with the help of a channel protein.
D. Oxygen molecules become trapped inside the cell membrane with the help of ATP.
Answer:
a. glucose molecules move agnst the concentration gradient across the cell membrane w the help of atp
Explanation:
active transport requires energy (atp) to push a molecule agnst its concentration gradient
also glucose molecules r too large to cross without the help of transmembrane proteins
and oxygen molecules r able to get thru by simple diffusion bc they r small enough
Glucose molecules move against the concentration gradient across the cell membrane with the help of ATP is an example of active transport.
Active transport is a biological term to refer to the movement within the cell in which some molecules move across the cell membrane. This movement requires energy from cells to move.
According to the above, when a glucose molecule moves against the concentration gradient across the cell membrane and in this movement it consumes energy (ATP) it is carrying out active transport.
According to the above, the correct answer is A. because it exemplifies active transport.
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The diagram below is a model of the process of transcription.
What is the purpose of strand B?
a) To act as a template for the synthesis of messenger RNA
b) To carry the code from the DNA molecule in the nucleus to the ribosome
c) Delivers specific amino acids to the ribosome to make proteins
d) Transfers nucleic acids to the nucleus
Answer:
b
Explanation:
The purpose of the strand B be would be to carry the code from the DNA molecule in the nucleus to the ribosome.
Looking closely at the diagram, strand B is the strand of RNA that is still in the process of being synthesized while strand A is acting as the template. The function of the RNA strand is primarily to carry an encoded message in the DNA molecule from the nucleus to the ribosome in the cytoplasm where the genetic codes would be translated during the process of protein synthesis.
The correct option is, therefore, b.
The purpose of strand B would be to carry the code from the DNA molecule in the nucleus to the ribosome (option b)
The strand B shown in the figure represent the RNA transcript derived from the transcription process due to the presence of uracil which is always found in RNAs.
After undergoing a series of processes including transcriptional control, they become mRNA and are transported to the ribosome to undergo translation to proteins.
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PLEASEEE HELPPP WITH MY SCIENCE QUESTION
Answer:
i
Explanation:
i cannot see it
1. Identify the organism(s) that produce CO2
2. Identify the organism(s) that produce O2.
Answer:
1. human beings ,animals etc
2.Trees
Inside the cell is 40% helium and outside the cell is 20% helium. Which of
the following will occur? *
A. helium will move out of the cell
B. helium will move into the cell
C.helium will not move
Answer:
A. Helium will move out of the cell
Inside the cell the concentration is higher than concentration off outer cell so the inner helium well more about of cell
Answer:
[tex]\boxed {\boxed {\sf A. \ Helium \ will \ move \ out \ of \ the \ cell}}[/tex]
Explanation:
Diffusion is the movement of particles from a high concentration to a low concentration. This is the process occurring in this question.
In this cell, 40% helium is inside the cell.
20% is outside of the cell.
40 is greater than 20. Therefore, the helium wants to move from the area of 40% to 20%, which is also from the inside of the cell to the outside. Basically, the helium moves out of the cell.
So, the best answer is choice A: helium will move out of the cell.
Which of the following processes is most likely to occur as a result of an
animal cell receiving a signal to initiate apoptosis?
Answer: lysosomes will release digestive enzymes into the cytosol
Explanation:
Apoptosis is one of the cellular mechanisms of cell death in a controlled manner. At the initiation of apoptosis, the lysosomes start secreting the digestive enzymes in the cytoplasm. Thus, option D is correct.
What is apoptosis?Apoptosis has been defined as programmed cell death in multicellular eukaryotes. It involves biochemical steps that involve cell shrinking, fragmentation of the nucleus, condensation of chromatin structure, decay of the mRNA, and the disintegration of the DNA.
It is a significant process in animal cells as it destroys the unwanted and harmful cancerous cells that can damage the body. They are very crucial in cancer and are initiated by the alteration in the survival signals and sudden dissociations.
The lysosomes play an important role in apoptosis as they're the specialized organs that release digestive enzymes that initiate cell death. They undergo autolysis when the signals for apoptosis are initiated.
Therefore, in option D. the lysosomes are responsible for apoptosis.
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Your question is incomplete, but most probably your full question was, Which of the following processes is most likely to occur as a result of an animal cell receiving a signal to initiate apoptosis?
A.) Ribosomes will translate mRNA to produce proteins.
B.) Vacuoles will fuse with the cellular membrane.
C.) Vesicles will release extracellular growth factors via exocytosis.
D.) Lysosomes will release digestive enzymes into the cytosol.
MEASURES EXERCISE INTENSITY
Answer:
use your target heart rate
Explanation:
The human body has an inbuilt system to measure its exercise intensity which is the heart.
Can some help me with this-
Chloroplast-
1) Main function I the cell?
2) Found in which cells?
3) Structure determines function?
4) Chemical formula for cellular respiration?
Mitochondria-
1) Structure determines function?
Answer:
Chloroplast
1. Help in photosynthesis
2.Plant cell
3.It is where chlorophyll is formed and this chlorophyll traps sunlight for photosynthesis.
4. C6H12O6 + 6O2--------> 6CO2 + 6O2 + Energy
Mitochondria
1.It posses it own DNA and also has a big surface area which makes it possible to generate more energy then supply them in the cells.
Why are Punnet squares specific to each offspring?
PLEASE HELP. I WILL GIVE BRAINLIEST AND A LOT OF POINTS.
Answer:
Genetic linkage is a phenomenon where two genes exist close to each other on the same chromosome. ... In addition, when a single trait is determined by multiple genes and the effect of each of these genes is graded, Punnett squares cannot accurately predict the distribution of phenotypes in the offspring.
Explanation:
Hi thank you for the points and also follow me of you can
b. The electron-group geometry of the water molecule is a tetrahedron, but the molecular geometry is bent.
How can this be explained?
I’ll give BRAINLIEST
Explanation:
The water molecule is bent molecular geometry because the lone electron pairs, although still exerting influence on the shape, are invisible when looking at molecular geometry.