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2 years ago

In which of the following ways is DNA replication similar to transcription?

Biology

2 answers:

SVEN [57.7K]2 years ago

6 0

b) cytosine pairs with guanine in both. literally in dna replication,

adenine goes with thymine

thymine goes with adenine

guanine goes with cytosine

cytosine goes with guanine

hope this helps mina! :) <3

uysha [10]2 years ago

3 0

Answer:

Option (b).

Explanation:

Replication involves formation of daughter DNA strands by using information present in parent DNA, with the help of DNA polymerase enzyme.

It takes place during the time of cell division as daughter DNA molecules are provided to new daughter cells. During DNA replication, adenine pairs with thymine and guanine pairs with cytosine. It takes place inside the nucleus.

Transcription involves formation of mRNA molecules with the help of template DNA and RNA polymerase enzyme. It occurs during the process of protein synthesis. During DNA transcription, adenine pairs with uracil, instead of thymine and guanine pairs with cytosine. It also takes place inside the nucleus.

Thus, the correct answer is option b.

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6) If a mutation happens in a cancer-causing gene to change the subsequent protein's function,

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Explanation:

B) False

Multiple mutations in several protooncogenes and tumor suppressor genes are required to form cancer

Cancer-causing genes, or oncogenes, develop from protooncogenes which regulate normal cell division. They may undergo mutations that alter gene expression, disrupt cell regulation and lead to the transformation of normal cells into tumor cells- their resulting proteins are abnormal or not formed. Tumor suppressor genes, which can halt unregulated cell growth and division, may also become mutated.

Each individual inherits 2 copies of a gene from their parents- a single mutation in one of these does not directly lead to cancer. Multiple activated oncogenes, in turn produce damaged, non functional proteins and together contribute to forming cancers.

Further Explanation:

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

somatic: these only occur within certain cells, and arise from environmental factors such as UV light
hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

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2 years ago

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D. the number of mates on the island

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2 years ago

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slavikrds [6]

Answer:

On a graph, points are grouped closely together.

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3 years ago

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Plants are the basis of nearly all ecosystems on Earth because they carry out the process of photosynthesis. Plants harvest ligh

Daniel [21]

Answer:

Trophic level

Consumer

Producer

Explanation:

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