final

Question 1

principles underlying evolution by natural selection

Answer 1

variation, heritability, differential reproduction, change in genotype of the population

Question 2

n and C in interphase G1

Answer 2

2n/2C

Question 3

n and C in interphase S

Answer 3

2n/4C

Question 4

n and C in interphase G2

Answer 4

2n/4C

Question 5

n and C in prophase

Answer 5

2n/4C

Question 6

n and C in metaphase

Answer 6

2n/4C

Question 7

n and C in anaphase

Answer 7

2n/2C

Question 8

n and C in cytokinesis

Answer 8

2n each/2C

Question 9

prophase

Answer 9

mitotic spindles form from centrosomes, chromatin condense

Question 10

prometaphase

Answer 10

nuclear envelope disappears, spindle fibre enter, microtubules from opposite poles attach to kinetochores of each chromosome

Question 11

metaphase

Answer 11

chromosomes align at midpoint

Question 12

anaphase

Answer 12

sister chromatids separate and move to opposite poles

Question 13

telophase

Answer 13

chromosomes unfold, return to interphase state, nuclear envelopes form, cytoplasm divides by furrowing

Question 14

interphase

Answer 14

two daughter cells are genetic duplicates

Question 15

prophase I

Answer 15

chromosomes condense, homologous chromosomes pair together

Question 16

prometaphase I

Answer 16

nuclear envelope breaks down, spindle enters the former nuclear area. chromosomes attach to kinetochore microtubules

Question 17

metaphase I

Answer 17

random alignment of chromosomes (independent assortment)

Question 18

anaphase I

Answer 18

two chromosomes of each homologous pair separate and move to opposite spindle poles

Question 19

telophase I

Answer 19

transitory stage, little or no change in the chromosomes. cytokinesis creates truly haploid cells

Question 20

prophase

Answer 20

chromosomes condense

Question 21

prometaphase II

Answer 21

nuclear envelope breaks down. spindle enters the former nuclear area, spindle microtubules leading to opposite spindle poles attach to the two kinetochores of each chromosome

Question 22

metaphase II

Answer 22

movements of the spindle microtubules align the chromosomes on the metaphase plate. independent assortment

Question 23

anaphase II

Answer 23

sister chromatids of each chromosome separate from each other and move to opposite spindle poles. separated chromosomes (now chromatids) have been segregated to two poles

Question 24

telophase II

Answer 24

chromosomes begin decondensing, spindles disassemble, new nuclear envelopes form around the masses of chromatin.