Cell Division

Question 1

Needs for cell division

Answer 1

Growth, wound repair, asexual reproduction

Question 2

What must happen before a cell divides

Answer 2

Duplicate organelles

Replicate DNA

Go through cell cycle checkpoints

Grow to sufficient size

Question 3

What phases make up interphase?

Answer 3

G1, S, G2

Question 4

G1

Answer 4

Normal activities of the cell are performed

Question 5

S

Answer 5

DNA synthesis

This is when DNA doubles

Question 6

G2

Answer 6

additional cell growth, organelles are replicated

Question 7

When do the number of chromosomes double?

Answer 7

Anaphase

Question 8

How long is one cell cycle?

Answer 8

Around 24 hours

Question 9

How do microtubules move chromosomes?

Answer 9

kinectochore fibers break down the microtubules which shortens them

and this pulls the chromosomes apart

Question 10

Chromosome

Answer 10

single double stranded DNA sequence (before S)

composed of chromatin

Question 11

What happens after DNA replication?

Answer 11

There are two sister chromatids but still one chromosome

2 double strands

Question 12

What are 2 sister chromatids held together at?

Answer 12

centromere

Question 13

What happens during anaphase?

Answer 13

2 sister chromatids are separated which creates 2 different chromosomes each with 1 sister chromatid

Question 14

Why do cells want to condense DNA?

Answer 14

So it can fit into nucleus and be sorted and separated