Biology Meiosis

What are two identical sister chromatids connected at the centromere?

• chromosome

• chromatid

• chromatin

• dna

How many pairs of chromosomes do humans have in a cell?

• 92

• 46

• 23

• 12

Tags

NGSS.HS-LS3-2

What happens to the chromosomes during anaphase?

• they line up

• they are pulled apart

• they are at either end of the cell

• they duplicate

Tags

NGSS.HS-LS1-4

The structure labeled A is a(n)

• chromatid

• centriole

• centromere

• chromophere

The structures labeled B are

• chromatids

• centriole

• centromere

• chromophere

Tags

NGSS.HS-LS1-4

What is the order of the three phases in interphase?

• G1, G2, S

• S, G1, G2

• G1, S, G2

• G1, G2, G3

Tags

NGSS.HS-LS1-4

Each human cell contains how many pairs of chromosomes?

• 20

• 21

• 22

• 23

the exchange of chromosome segments between non sister chromatids in meiosis

• Chromatids

• Diploid

• Cross Over

• Haploid

What is the primary purpose of meiosis in sexually reproducing organisms?

• To produce identical daughter cells

• To reduce the chromosome number by half

• To repair damaged DNA

• To increase genetic mutations

During which phase of meiosis does crossing over occur?

• Prophase I

• Metaphase I

• Anaphase II

• Telophase II