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AQA CORE BIOLOGY > Reproduction > Flashcards

Flashcards in Reproduction Deck (15)
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1
Q

What does sexual reproduction produce?

A

Genetically different cells

2
Q

What is sexual reproduction?

A

Genetic information from 2 organisms (mother and father) is combined to produce offspring

3
Q

What are the offspring which are produced from sexual reproduction?

A

Genetically different to either parent

4
Q

What do the mother and father produce?

A

Gametes

5
Q

How many chromosomes do each gametes have?

A

23

Half the number in a normal cell

6
Q

What is fertilisation?

A

The egg and the sperm cell fuse together to form a cell with a full number of chromosomes

7
Q

What does sexual reproduction involve?

A

The fusion of male and female gametes

8
Q

What does the mixture of genetic material produce?

A

Variation in the offspring

9
Q

What does asexual reproduction produce?

A

Genetically identical cells

10
Q

What is asexual reproduction?

A

An ordinary cell can make a new cell by diving into 2

11
Q

When a cell divides into 2 for asexual reproduction what does the new cell contain?

A

Exactly the same genetic information

12
Q

How many parents are involved in asexual reproduction?

A

One

13
Q

How does asexual reproduction work?

A

X-shaped chromosomes have 2 identical halves
They split down the middle
This forms 2 sets of half chromosomes
DNA replicates itself to form 2 identical cells with complete chromosomes

14
Q

How do plants and animals use asexual reproduction?

A

To grow and produce replacement cells

15
Q

What organisms produce offspring using asexual reproduction?

A

Bacteria

Certain plants