Reproduction Flashcards Preview

z - AQA GCSE Core Biology - Old spec > Reproduction > Flashcards

Flashcards in Reproduction Deck (9)
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1
Q

What are gametes?

A

Sex cells - egg and sperm cells

2
Q

What happens during sexual reproduction?

A

Egg and sperm cell fuse together

Genes of the egg and sperm cell mix

3
Q

How many chromosomes are found in an egg cell?

A

23

4
Q

How many chromosomes are found in a sperm cell?

A

23

5
Q

How many chromosomes are found in a fertilised egg?

A

46 (23 pairs)

6
Q

Why does sexual reproduction lead to genetic variation?

A

The mixture of parents genes (in chromosomes) produces variation in the offspring.

7
Q

What is meant by ‘offspring’?

A

The babies of an organism

8
Q

Asexual reproduction produces genetically _________ cells.

A

identical

9
Q

How is asexual reproduction different to sexual reproduction?

A

No fusion of gametes
No mixing of genes
No genetic variation
The offspring is a clone