Biology Topic Practice
Meiosis & Gametes
Sexual reproduction involves the fusion of male and female gametes (sperm and egg), which are produced by meiosis.
Most students confuse this with mitosis.
What is Meiosis & Gametes?
"Meiosis is a type of cell division that produces four genetically different gametes, each with half the number of chromosomes of the parent cell."
Question 1
What is the role of meiosis in humans?
Question 2
What is the role of meiosis in humans?
Question 3
Why must gametes be haploid?
Sexual Reproduction
Meiosis halves the number of chromosomes in gametes, providing genetic variation.
In sexual reproduction, there is a mixing of genetic information leading to variation in offspring.
Exam Tip
Gametes only have 23 chromosomes, while normal human body cells have 46.
Accelerate your revision
Master meiosis & gametes and more with our exam-focused practice app.
Try the App Free
No sign-up required to start