4.1.2.1 Chromosomes Flashcards Preview

AQA GCSE Biology > 4.1.2.1 Chromosomes > Flashcards

Flashcards in 4.1.2.1 Chromosomes Deck (7)
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1
Q

What does the nucleus of a cell contain?

A

The nucleus of a cell contains chromosomes made of coiled DNA molecules - are genetic information

2
Q

What does each chromosome contain?

A

A large number of genes

3
Q

In body cells how are chromosomes normally found?

A

In pairs

4
Q

How many chromosomes do normal cells contain?

A

23 pairs

5
Q

What can be used to help develop explanations on how cells divide?

A

Models and analogies can be used to develop explanations on how cells divide

6
Q

How many chromosomes do gametes contain?

A

Half a set of chromosomes as they combine during fertilisation

7
Q

What substances do cells need to grow and divide?

A
  • Oxygen
  • Water
  • Glucose
  • Amino acids/protein

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