1. True/False: DNA replication is considered "semi-conservative" because only half of the chromosomes are copied during S phase of interphase.
Group of answer choices

True

False
2.The monomers of DNA consist of
Group of answer choices

a. deoxyribose, phosphate, and a nitrogenous base

b. deoxyribose, phosphate, and hydrogen bonds

c. ribose, phosphate, and nitrogenous bases

d. ribose, phosphate, and hydrogen bonds

e. none of the above are correct

1) The statement is false

2) Option A) deoxyribose, phosphate, and a nitrogenous base

Explanation:

1) In semi-conservative DNA replication:

- a parent double-stranded DNA splits in two.

- Each strand is then read by the enzyme, DNA polymerase, to ensure accurate synthesis of a new daughter strand

- the newly synthesized strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.

Thus, because the parent strand is retained in the newly synthesized DNA, DNA replication is described as semi-conservative

2) DNA consists of several repeating units of polydeoxynucleotides where each is made up of a nitrogenous base (Adenine, thymine, cytosine or guanine) linked to

deoxyribose sugar by an N-glycosidic linkage, and then the sugar linked to a phosphate group by phosphoester bond.

1. True.

Option A. deoxyribose, phosphate and nitrogenous base.

Explanation:

DNA replicates in semi conservative because when a parent helix replicates, it produce two daughter helixes which contain one of the two helical strand of the parent. During S phase in interphase, DNA is unwind by enzyme helicase and it is duplicated. The two single strands is use as a template to form identical strands.

2. The monomers of DNA are also called nucleotides. They include 5 carbon sugar(deoxyribose, Nitogenous base and phosphate group.

it's c. (to reduce the greenhouse effect/carbon gasses)

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