meiosis

Question 1

what are 3 functions of meiosis

Answer 1

• reduce chromosome # to haploid
• ensure each daughter cell has one full set of chromosomes
• promote genetic diversity

Question 2

meiosis involves one round of DNA replication and 2 rounds of

Answer 2

cell division

Question 3

what happens in interphase

Answer 3

chromosome duplication

Question 4

meiosis I is known as the - division

Answer 4

reductive

Question 5

meiosis II is known as the - division

Answer 5

equational

Question 6

what is the longest phase of meiosis I

Answer 6

prophase I - it has 5 stages : leptotene, zygotene, pachytene, diplotene, diakinesis, the pairing of homologues, assembly of synaptonemal complexes, and crossing over occurs

Question 7

a bivalent or tetrad is made of

Answer 7

4 chromatids

Question 8

a synaptonemal complex holds together

Answer 8

the bivalents, the homologous chromosomes along all their length

Question 9

what happens during pachytene

Answer 9

crossing over, thus creating chiasmata

Question 10

meiosis II is the

Answer 10

Separation of the non identical sister chromatids

Question 11

how is there an increase in genetic variability

Answer 11

by independent assortment of homologous in gametes and crossing over