Sexual Reproduction And Meiosis

Question 1

What is sexual reproduction?

Answer 1

I where genetic information from two organisms is combined to produce offspring which are genetically different to either parent

Question 2

What is fertilisation?

Answer 2

A male gamete fuses with a female gamete this makes a zygote

Question 3

What do gametes contain?

Answer 3

They contain half the number of chromosomes , they are haploid

Cells with full chromosomes are diploid

Question 4

What is meiosis?

Answer 4

It is a type of cell division , it doesn’t produce identical cells.

It only happens in reproductive organs in humans

Question 5

What happens in 1st division meiosis?

Answer 5

1. the dna duplicates
2. Chromosomes line up on middle
3. Pulled apart , each cell has one of each chromosomes , a mixture of mother and father genes
4. This makes a genetically variant version of the mother and father cells

Question 6

What happens during stage 2 of meiosis?

Answer 6

1. chromosomes line up again

2. You get 4 daughter cells they are all genetically different