1. Chromosomes, colored bodies, are composed of proteins and DNA; so are chromat

Question

1. Chromosomes, colored bodies, are composed of proteins and DNA; so are chromatids. At metaphase I there are 46 chromosomes aligned in pairs along the human cells equatorial plate. At this stage there are______chromatids.

..After pairing at metaphase I chromosomes disjoin
a. without centromeric fission. b. with chromatids together. c. into opposite daughter cells. d. a,b & c are all true.

3. If a pair of chromosomes at metaphase I contain the alleles A & A in one chromosome and a & a in the other chromosome the first daughter cells will contain a. either a & a or A & A
b. either A & a or a & A c. A & a and A & a
d. AB, Ab, aB & ab e. a

Explanation / Answer

1. 92 cromatids 2. c. into opposite daughter cells 3. c. A & a and A & a

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