Cell Division (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What are chromosomes?
What are chromosomes?
Structures that organize genetic information
What chromosomes are made of
What chromosomes are made of
Long, tightly coiled strands of DNA
What are genes?
What are genes?
Short sections of DNA on chromosomes
Function of genes
Function of genes
Provide instructions for making specific proteins
What do proteins influence?
What do proteins influence?
Characteristics or traits
Number of chromosome pairs in human body cells
Number of chromosome pairs in human body cells
23 pairs
Total chromosomes in human body cells
Total chromosomes in human body cells
46
Origin of each chromosome in a pair
Origin of each chromosome in a pair
One from mother, one from father
Examples of gametes (sex cells)
Examples of gametes (sex cells)
Sperm and egg cells
Number of chromosomes in gametes
Number of chromosomes in gametes
23 (one from each pair)
What is the nucleus?
What is the nucleus?
Control centre of the cell
What does the nucleus contain?
What does the nucleus contain?
Genetic information