Answer:
1. Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins). RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule. Transcription ends in a process called termination. 2. DNA polymerase 3. Before mRNA leaves the nucleus of a eukaryotic cell, a cap is added to one end of the molecule, a poly A tail is added to the other end, introns are removed, and exons are spliced together. Sequence of nucleotides in messenger RNA is translated into a sequence of amino acids. 4. In RNA splicing, specific parts of the pre-mRNA, called introns are recognized and removed by a protein-and-RNA complex called the spliceosome.
Explanation:
I hope this helps. ^_^
What is DNA Transcription?
Transcription is the technique of creating an RNA replica of a gene series. This replica, known as a messenger RNA (mRNA) molecule, leaves the molecular nucleus and enters the cytoplasm, wherein it directs the synthesis of the protein, which it encodes.
Thus it is clear that all answers are well explained.
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Imagine you are a systematist who has discovered an unfamiliar
animal. Which of the following observations about the animal will best
help you find its taxonomic classification?
The animal has an unpleasant temperament.
The animal has sharp, pointed teeth.
The animal was found near a herd of deer.
The animal bit you.
Answer:
1) taxonomy
2) species
3) the animal has sharp, pointed teeth
4) the current taxonomic system is based on the Linnaean system
5) he only had two kingdoms, animals and plants
Explanation:
did the quick check
The observation about the animal that will be helpful in finding its taxonomic classification is B. The animal has sharp, pointed teeth.
Taxonomy refers to the science of the classification of organisms into groups. The classification is based on the characteristics that the organisms have.
Therefore, in a situation whereby the person is unfamiliar with an animal, the shape of the teeth of the animal can be used for its classification.
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How do environmental factors affect germination in early growth of different food crops
Answer:The germination process is commonly regulated by many abiotic factors, both individually and interactively, and these include light, temperature, pH, burial depth, soil salinity and moisture.
Explanation:
Again PLEASE help I will give Brainliest!!!!!!!!!!!!!!!!
Its the one all the way at the bottom
Historic Westminster Abbey in London, England, has been damaged by the sulfur dioxide and nitrogen oxide in acid rain. This is an example of _____.
biological weathering
chemical weathering
physical weathering
Answer:
i think its chemical weathering
Explanation:
hehe
Which gas is most effective in absorbing incoming harmful ultraviolet radiation in the earth's stratosphere before that radiation reaches earth's surface?
Answer:
Ozone (O₃) gas
Explanation:
In the Earth's stratosphere, oxygen gas (O₂) is combined with atomic oxygen (O) to form ozone gas (O₃). This is very important because ozone protects the life on Earth from ultraviolet (UV) radiation from the Sun. UV radiation is high-energy radiation, and it is very dangerous for living organisms. Ozone molecule (O₃) absorbs UV radiation and it breaks down by forming O₂ and atomic oxygen (O) again. In this way, it protects the Earth from nocive radiation.
The DNA of a plant or animal cell is found in which of the following parts of a cell? *
1 point
Chloroplasts
Chlorophyll
Cell wall
Chromosomes
If a car travels 200 meters in 20 seconds how fast was the car traveling.
Answer:75
Explanation:
What was Ptolemy's objection?
The diagram below shows a microscopic view of the lower epidermis of a maple leaf. What type of cell is indicated by label B?
Answer: I think it’s a guard cell
Explanation:
Answer:
Guard cells
Explanation:
A radioactive element has a half-life of 2,000 years. If a sample of this
element begins with a mass of 100 grams, how long would you have to waitfor the mass to decrease to 25 grams?
A. 4,000 years
B. 8,000 years
C. 500 years
D. 2,000 years
Answer:
A = 4000 years
Explanation:
Given data:
Half life = 2000 years
Total mass = 100 g
Mass remain = 25 g
Time taken to reduces to 25 g = ?
Solution:
At time zero = 100 g
At first half life = 100 g/2 = 50 g
At 2nd half life = 50 g / 2 = 25 g
Time taken:
Half life = Time elapsed / number of half lives
2000 years = Time elapsed / 2
Time elapsed = 2000 years × 2
Time elapsed = 4000 years
Pls help ASAP I really need help
It's B
And WHY YOU GOT A SAMSUNG COMPUTER BOIII NEED THAT MAC
A strike-slip fault is the result of what type of stress?
A
extension
B
compression
С
shear
D
strain
Answer:
С.shearExplanation:
A strike-slip fault is a dip-slip fault in which the dip of the fault plane is vertical. Strike-slip faults result from shear stresses .
I need help
I would give brainliest
Answer:
How we supposed to tell you where it go
Explanation:
Which statement correctly compares electric charge with electric current?
Answer:
voltage causes electric charges to move from higher to lower potential.
Explanation:
Explain why DNA must be replicated.
I need this ASAP please, ty.
Answer:
DNA, found within the nucleus, must be replicated in order to ensure that each new cell receives the correct number of chromosomes.
Multiple choice question, someone please answer
PLEASE HELP!! I NEED THIS ASAP
Answer:
Molecules Move up the concentration gradient- Passive
Requires no energy- Passive
Requires energy- Active
Molecules move with the flow- Passive
Explanation:
Passive needs no energy while Active does
A white flower is pp.What is its genotype?
Answer:
Explanation:
The genotype is recessive time=1/4 of the offsprings have white flowers!
Explanation:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. ... Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent.
hope it helps u
what provides new variation
Answer:
Mutation
Explanation:
The main cause of variation within a population is usually through genetic mutation.
Mutation is the alteration of the genetic sequence within an organism. It often lead to formation of new genetic patterns and codes.
Most times, environmental influences are paramount to causing genetic mutation within a population.
Other times, it might be due to competition and some other internal factors.
Mutation can be transferred from parents to offspring in most cases.
The unit of electrical charge.
(1 Point)
Capacitor
Coulomb
Electric Dipole
Electromagnet
Ferromagnetic
Generator
Magnetic Force
North and South Poles
Ohms
Voltage
Answer:
coulomb
Explanation:
A coulomb is the SI unit of electric charge. It is equivalent to one ampere-second or the amount of charge transported in one second by a current of one ampere.
Hope that helps.
HELP ASAP!! I have no idea
Answer:
Explanation:
what is the question?
Differentiate between the three major climate zone
Answer:
tropical, temperate, and polar
The three major climate zones are tropical, polar, and temperate.
What are the climate zones?A larger pattern, which helps one to understand weather is known as climate. The climate of the region is predicted by the average weather in the location over a long time duration. The three prime climate zones of the Earth are:
TropicalTemperatePolarThe climate region close to the equator with warm air masses is called tropical. In this climate zone, the average temperature in the coldest month is 18 degree C. This is warmer in comparison to the average temperature of the warmest month in the polar zone.
The polar climate zone is found in the North and South poles due to adjacent cold air masses. In this zone, the warmest months average is less than 10 degree C. This is lesser in comparison nto the average temperature of the coldest months in the tropical zones.
The climate zone situated between the North and South poles and the equator is the temperate zone. The average temperature of the coldest months in the temperate zone is lesser in comparison to the tropical zones, while the average temperature of the warmest months in the temperate zone is more than that of the polar zone.
Thus, the three major climate zones are tropical, polar, and temperate.
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Help! 24 points! Which diseases share a similar inheritance pattern?
cystic fibrosis and hemophilia
Duchenne muscular dystrophy and Huntington’s disease
hemophilia and Duchenne muscular dystrophy
Huntington’s disease and cystic fibrosis
Answer: C hemophilia and Duchenne muscular dystrophy
Explanation:
Answer:
d
Explanation:
Give one substance that plants absorb by active transport
What are 2 examples Natural selection?
Answer:
Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.
Explanation:
Cathy placed a sample of yeast , a single celled eukaryotes, in a closed test tube containing a solution of glucose. How will the composition of the air in the test tube change as the yeast interacts with the glucose
related to HELP part c number 1
Answer:
Due to suitable environment of the equator.
Explanation:
Latitude is abiotic factor that has a great impact on the occurrence of fish species as we can see in the graph, the fish species increases as we go towards equator whereas decreases when we go away from the equator. This is because the climatic condition and temperature of water at the equator is suitable and warm so this suitable environment attracts more species to lives there.
In sports how do objects change direction .Name 7 ways
Place the steps below in order from the first to happen to the last that will happen in hemostasis. Chemicals are released from the injury site and from underlying callogen. A blood vessel is severed. Blood and blood components leak out the breaks. The platelets become activated making them spiked and sticky. Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot. Fibrinogen is converted to fibrin. The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Answer:
A blood vessel is severed.
Blood and blood components leak out the breaks.
Chemicals are released from the injury site and from underlying callogen.
The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Fibrinogen is converted to fibrin.
The platelets become activated making them spiked and sticky.
Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot.
Explanation:
Hemostasis is the process by which the body prevents and stop blood loss through bleeding.
Hemostasis occurs in three steps:
1. Vasoconstriction: Once a blood vessel is severed or cut, the smooth muscles of the blood vessels start to constrict or get narrower around the severed vessel in order to reduce blood flow through it. This vasoconstriction occurs in response to chemicals released from the cut vessel and the underlying collagen.
2. Platelet-plug formation: the platelets become activated by a glycoprotein called Von Willebrand factor (vWF), which is found in plasma and begin to clump together sticking together. This is known as primary hemostasis.
3. Clot formation: in response to platelet-plug formation, several clotting factors are activated which eventually convert fibrinogen to fibrin. Fibrin is mesh-like and holds the platelets as well as red and white blood cells in place, thereby forming blood-clots over the wound.
Question 2 (11 points) What conclusion can be drawn from the change in population of light gray peppered moths and the dark-colored moths? The color change had nothing to do with the change in environment. There were previously no dark-colored pepper moths. Darkerd coloring is currently better for the peppered moth's survival. The lighter peppered moths migrated to a new environment. d
Answer:
Darker coloring is currently better for the peppered moth's survival.
Explanation:
Dark coloring is currently better for the peppered moth's survival because this dark colour enable the peppered moth to hide from the birds who feeds on them. Due to industrial revolution, a black powder of smoke emitted from industries spreads on the vegetation. This black powder helps the dark peppered moth to hide from the predators so it increases the survival of peppered moth.