ch 11

Question 1

in comparing gametes and somatic cells, somatic cells are

Answer 1

diploid with twice the number of chromosomes

Question 2

what are homologous chromosomes

Answer 2

two genetically similar chromosomes, one from each parent (of the organism performing meiosis)

Question 3

chiasmata form _____

Answer 3

between homologous chromosomes

Question 4

during anaphase 1

Answer 4

homologous chromosomes move to opposite poles

Question 5

at metaphase 1 the kinetchores of sister chromatids are

Answer 5

attached to microtubules from the same pole

Question 6

what occurs during anaphase of meiosis 2

Answer 6

sister chromatids are pulled to opposite poles

Question 7

which of the following does not contribute to genetic diversity

independant assortment
recombination
metaphase of meiosis 2
metaphase of meiosis 1

Answer 7

metaphase meiosis 2

Question 8

how does dna replication differ for mitosis and meiosis

Answer 8

In meiosis there is only one S phase (replication ) for two divisions

Question 9

which phase of meiosis 1 is most similar to comparable phase of mitosis

Answer 9

telophase 1

Question 10

structurally mitotic cohesins have different components than meiotic cohesins- this leads to the following functional difference?

Answer 10

centromeres remain attached during anaphase 1 of meiosis

Question 11

mutations that effect dna repair also affect the accuracy of meiosis, why?

Answer 11

proteins involved in dna repair are also involved in crossing over