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weqwewe [10]
3 years ago
6

According to the model, what is the role of RNA in DNA replication? A) RNA has no role in DNA replication B) RNA acts as a prime

r to direct the synthesis of new DNA by polymerase. C) RNA acts as an enzyme that breaks hydrogen bonds between base paired nucleotides. D) RNA stabilizes the DNA molecule on the leading strand while replication occurs on the lagging strand.
Biology
2 answers:
rjkz [21]3 years ago
8 0
The answer is B. Primase produces RNA, making it a type of RNA polymerase. RNA is complimentary to a single strand of DNA.
S_A_V [24]3 years ago
8 0

Answer:

Option-B

Explanation:

DNA replication is a process which replicates the DNA in a cell and increases the amount of DNA mediated by the enzymes.

The DNA replication begins when the Helicase enzyme opens the DNA and primase form an RNA molecule with a complementary sequence at 5' end of DNA which acts as a primer. The DNA polymerase can add the nucleotide after it binds the RNA primer as primer provides it's 3'-OH group to bind new nucleotides.

Since RNA molecule acts as a primer in the replication process to which the new nucleotides will be added, therefore, the Option-B is the correct answer.

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<u>A.light intensity</u>

<u />

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Carbon dioxide + water + energy= glucose + oxygen

At the compensation point, the rate of CO2 production by respiration matches the rate of CO2 utilization in photosynthesis- there is no net CO2 production . Since photosynthesis is rate limited, the rate of energy intake can be reduced in order to reach the compensation point; lowering the light intensity would slow the rate of photolysis and thus photosynthesis. Similarly, an increase in light intensity

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Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

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