Meiosis (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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How many cells does meiosis produce?
How many cells does meiosis produce?
Four non-identical cells
Where does meiosis occur?
Where does meiosis occur?
Reproductive organs
What are cells formed by meiosis called?
What are cells formed by meiosis called?
Gametes
Number of chromosome copies in gametes
Number of chromosome copies in gametes
One copy of each chromosome
First step in meiosis process
First step in meiosis process
Cell makes copies of chromosomes
Number of chromosomes after first division in meiosis
Number of chromosomes after first division in meiosis
46
Number of chromosomes after second division in meiosis
Number of chromosomes after second division in meiosis
23
Genetic relationship between gametes
Genetic relationship between gametes
All genetically different
Why are gametes genetically different?
Why are gametes genetically different?
Chromosomes are shuffled during meiosis
Number of chromosomes in a gamete
Number of chromosomes in a gamete
23
What is the process where gametes join?
What is the process where gametes join?
Fertilisation
How many chromosomes after fertilisation?
How many chromosomes after fertilisation?
46 (normal number)
What type of cell division occurs after fertilisation?
What type of cell division occurs after fertilisation?
Mitosis
Structure formed from cell divisions after fertilisation
Structure formed from cell divisions after fertilisation
Embryo
Process where cells take on different roles
Process where cells take on different roles
Differentiation