Cell Division (AQA GCSE Biology Combined Science): Flashcards
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Practise the cards
9 cards from this deck
What are chromosomes made of?
What are chromosomes made of?
Long, tightly coiled strands of DNA
What are genes?
What are genes?
Short sections of DNA on chromosomes
What do genes do?
What do genes do?
Provide instructions for making specific proteins
Chromosome pairs in human body cells
Chromosome pairs in human body cells
23 pairs
Total chromosomes in human body cells
Total chromosomes in human body cells
46 chromosomes
Where do chromosomes in each pair come from?
Where do chromosomes in each pair come from?
One from mother, one from father
Chromosomes in gametes (sex cells)
Chromosomes in gametes (sex cells)
23 chromosomes (one from each pair)
Examples of gametes
Examples of gametes
Sperm and egg cells
Function of nucleus
Function of nucleus
Control centre; contains genetic information