Question

Part 7

In a ____________ cell, every maternal homolog has a matching paternal homolog.

• A. sperm

• B. haploid

• C. diploid

• D. bacterial

• E. egg

At the G1 phase of cell cycle, body cells of goats have 60 chromosomes. How many sister chromatids would you expect to see in a cell of a goat during G2 phase?

• A. 30

• B. 60

• C. 15

• D. 120

Only one of the following enzymes given below is needed inside a replication bubble. What would that be?

• A. DNA polymerase

• B. ATP synthase

• C. ribozymes

• D. cyclin dependent kinase

• E. RNA polymerase

If an embryonic cell of a diploid organism has 40 chromosomes, how many chromosomes would you expect to see in a skin cell of this organism?

• A. 10

• B. 20

• C. 40

• D. 80

One process common to both mitosis and meiosis is;

• A. separation of homologous chromosomes

• B. condensation of sister chromatids

• C. generation of two identical cells

• D. crossing over between homologs

• E. generation of four unique cells

Answer 1

Answer) Diploid.

The diploid cell has two homologous chromosome. Out of two homologous chromosome, one is paternal and one is maternal in nature.

---

Answer) 120

There are 60 chromosome in the G1 phase. The duplication of chromatid occurs in the S phase. That's why G2 phase has 60×2=120

---

Answer) DNA polymerase

DNA polymerase is found in the replication bubble. It replicates the DNA. The other enzymes are not found in replication bubble.

---

Answer) 40

The embryonic and skin cells are diploid in nature. That's why both cells have same chromosome count i. e. 40

Answer) Condensation of sister chromatids.

The condensation of sister chromatids occurs in prophase of the cells cycle in mitosis and meiosis.

Unique 4 daughter cells, crossing over between homologous chromosome and separation of homologous chromosome is found in meiod only.

Identical two daughter cells are found in mitosis.

Please rate high... M