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Question 1

when we say that an organism is diploid, we mean that

Answer 1

its cells have 2 sets of chromosomes

Question 2

which of the following is true of kinetochores?

Answer 2

they are sites at which microtubules attach to chromosomes

Question 3

for a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes through independent assortment are possible for gametes?

Answer 3

8 millionish

Question 4

the decline of MPF activity at the end of mitosis is due to

Answer 4

the degradation of cyclin

Question 5

during ______ homologous chromosomes separate

Answer 5

anaphase I

Question 6

which life cycle stage is found in plants but not animals?

Answer 6

multicellular haploid

Question 7

DNA is replicated at this time of the cell cycle:

Answer 7

S phase

Question 8

Which of the following would be most likely to lead to cancer?

Answer 8

hyperactivity of proto-oncogene and failure of a tumor-suppressor gene