The diploid number of the hypothetical animal Geneticus intr

The diploid number of the hypothetical animal Geneticus introductus is 2n= 28. Each diploid nucleus contains 1 ng of DNA in G1.

Part A

What amount of DNA is contained in each nucleus at the end of S phase?

Part B

Write the number of chromosomes and amount of DNA (ng) present per cell at the end of Telophase I of meiosis (after cytokinesis).

Express your answer as two numbers separated by a comma (example: 12, 4).

Write the number of chromosomes and amount of DNA (ng) present per cell at the end of Anaphase of mitosis.

Express your answer as two numbers separated by a comma (example: 12, 4).

Part D

Write the number of chromosomes and amount of DNA (ng) present per cell at the end of Telophase II of meiosis (after cytokinesis).

Separate your two answers by a comma. For the amount of DNA, use two significant figures. (Example: 12, 4.5).

Solution

Part A. There are 28 chromosomes containing 2 ng of DNA. because Cell is ready with DNA synthesis for duplication in s phase. ( 56 chromatides)

Part B. Telophase I: 14 chromosomes (1ng); duplicated chromose are half now with same amount it weight.

Part c. Mitotic Anaphase: 28 chromosomes (2ng);

Part d.  Telophase II: 14 chromosomes, (0.5 ng)