Chapter 9: Genetic Recombination

Question 1

Prophase I

Answer 1

• chromosomes (each consists of two sister chromatids) condense
• homologous chromosome pairs come together (tetrads; four chromatids)
• recombination

Question 2

Prometaphase I

Answer 2

• nuclear envelope breaks down

- chromosomes attach to kinetochore on opposite spindle poles

Question 3

Metaphase I

Answer 3

movement of the spindles align the tetrads on the metaphase plate between the spindle poles

Question 4

Anaphase I

Answer 4

the spindles separate each homologous pairs to opposite spindle poles (haploid)

Question 5

Telophase I

Answer 5

little or no change

Question 6

Prophase II

Answer 6

-chromosomes condense and spindle forms

Question 7

Metaphase II

Answer 7

chromosomes alight on the metaphase plate

Question 8

Anaphase II

Answer 8

the spindles separate the two chromatids to opposite poles

Question 9

Telophase II

Answer 9

chromosomes decondense, spindles disassemble, and a new nuclear envelope forms

Question 10

Meiosis I

Answer 10

recombination exchanges segments between homologues and produces 2 haploid cells w/ chromatids attached

Question 11

Meiosis II

Answer 11

sister chromatids separate and produces 4 recombined haploid cells