EXAM-Biology Ch. 8: Cell Reproduction

Question 0

What are chromatids?

Answer 0

Duplicate copies of the DNA

Question 1

What does DNA need to do in order to fit inside of a cell?

Answer 1

DNA scrunches together & coils around proteins called histones

Question 2

What is a centromere?

Answer 2

Protein disk (holds it together)

Question 3

What is the difference between the chromosomes of eukaryotes and prokaryotes?

Answer 3

The number of chromosomes
E- more than 1
P- only 1

Question 4

How many chromosomes are in your body cells?

Answer 4

46 chromosomes

Question 5

What is the difference between a diploid and a haploid cell?

Answer 5

Haploid-23 chromosomes (sex cells)

Diploid-46 chromosomes in your body cells (2n)

Question 6

What is mitosis?

Answer 6

Dividing of the cell’s nucleus

Question 7

What happens during crossing over?

Answer 7

Chromosomes exchange segments of DNA

Question 8

How many chromosomes do you receive from your mother and father?

Answer 8

22 autosomes - 1 sex cell - mom
22 autosomes - 1 sex cell - father
46 total.

Question 9

How many cells and chromosomes does meiosis produce?

Answer 9

4 cells