Do any 3 of these questions (Questions 31-35) (10 points each). If you do a 4th

ID: 254187 • Letter: D

Question

Do any 3 of these questions (Questions 31-35) (10 points each). If you do a 4th answer, please indicate which ones you want graded or I will grade the first 3 I find. 31) In mitosis, what is the function of the kinetochore microtubules? 32) What are the three differences between meiosis I and mitosis? 33) During what stage(s) of a cell cycle does a chromosome consist of two identical chromatids? 34) List the gametes that could be made by a pea plant heterozygous for seed color, seed shape and pod shape (YyRrli) How large a Punnett Square would you need to predict the offspring of the self-pollination of this trihybrid?

Explanation / Answer

(31)

Kinetochores found at the centromeric region of chromosomes connect to spindle microtubules and mediate proper chromosome segregation during cell division.

(32)

Meiosis 1

Mitosis

Occurs during the formation of gamete cells

crossing over takes place

Meiosis results in genetically non identical, diploid cells

Somatic cell division

No crossing over takes place

mitosis results in genetically identical, diploid cells

(33)

Prophase and Metaphase have identical chromatids