5. The gametic ratio for a heterozygote is roughly 1:1, 1/2 : 1/2 or whatever ex

Question

5. The gametic ratio for a heterozygote is roughly 1:1, 1/2 : 1/2 or whatever expression you like for equivalence. This results from a. anaphase I disjunction b. mitotic crossingover c. Chi-square degrees of freedom d. telomeric sequences
e. all of the above

6. Mendel's Law of Independent Assortment basically states that the alleles of two or more genes segregate independently within and between loci; the chromosomal explanation of this observation is
a. alignment of nonhomologous chromosomes at metaphase I
b. alignment of nonhomologous chromosomes at metaphase II
c. alignment of mitochondria at anaphase
d. misalignment of tetrads during mitosis
e. very much like transformation

Explanation / Answer

5 a: disjunction is the separation of chromosomes seen during anaphase. This is the right answer as the other options are wrong. crossing over does not occur in mitosis but in meiosis.
6. b: non-homologous chromosomes are aligned in metaphase II. this allows for segregation of alleles. Hence b is the right answer.

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