Question

are chromosomes duplicated or unduplicated in each phase: inerphase: prophase: anaphase: telophase: metaphase: G1: G2: 2....

are chromosomes duplicated or unduplicated in each phase:

inerphase:

prophase:

anaphase:

telophase:

metaphase:

G1:

G2:

2. If parent is BB, gametes are?

3. If parent is TtGg possible gametes are?

4. If parent is heterozygous for blood type A, what gametes will they make?

a. IAIB

b.IA &IO

c. IA

d. IO

Homework Answers

Answer #1

1. Duplication of chromosomes occur in S phase of Interphase. So the chromosomes will be duplicated in S, G2, Prophase, Metaphase. Separation of sister chromatids occur in Anaphase. So, the will be unduplicated in Anaphase, Telophase and G1 phase.

2. If parent is BB, then the gametes are 'B' as no other allele is present.

3. If parent is TtGg, then the possible gametes are TG,Tg,tG,tg.

4. B. IA IO. Explanation- A person heterozygous for A group will only have one IA allele and one IO allele. So, during gamete formation, two types of gametes are produced.

Thanks

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