Chapter 3 Sexual Reproduction And Meioisis

Question 1

What is the name for the sores and egg cells

Answer 1

Gametes

Question 2

How w many chromosomes do the. Gametes each have

Answer 2

23 chromosomes because when egg and sperm fertilise they are added together which = 46

Question 3

What are gametes number of chromosomes called

Answer 3

Haploid

Question 4

Gametes are produced by

Answer 4

Meiosis

Question 5

What is meiosis

Answer 5

Meiosis is cell division which in humans on,y occurs in the reproductive organs to produce gametes

Question 6

How does meiosis work

Answer 6

1 cell doubles chromosome

2 chromosomes line up in pairs In the centre of the cell
3 pairs are then pulled apart so each new cell has one copy of each chromosome
4 mother and fathers genes are there causing genetic variation

5 this is the second division here the chromosomes line up again and the arms of the chromosomes are pulled apart
6 now there are 4 daughter haploid cells these are the gametes. Each Gamete only has one set of chromosomes