Meoisis (Leaving Cert Biology): Quizzes
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22 questions from this quiz
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Practise the questions
22 questions from this quiz
What is meiosis?
What is meiosis?
Nuclear division halving chromosomes
What type of cells does meiosis produce?
What type of cells does meiosis produce?
Haploid cells
Where does meiosis occur in humans?
Where does meiosis occur in humans?
Ovaries and testes
What does meiosis produce in humans?
What does meiosis produce in humans?
Sperm and egg cells
What does meiosis produce in flowering plants?
What does meiosis produce in flowering plants?
Pollen grains and egg cells
How many chromosomes does the parent nucleus have in humans?
How many chromosomes does the parent nucleus have in humans?
46 chromosomes (diploid)
How many chromosomes do daughter cells have after meiosis in humans?
How many chromosomes do daughter cells have after meiosis in humans?
23 chromosomes (haploid)
What type of cells does meiosis produce for sexual reproduction?
What type of cells does meiosis produce for sexual reproduction?
Haploid gametes
How does meiosis maintain chromosome number across generations?
How does meiosis maintain chromosome number across generations?
Produces haploid gametes that combine
What happens during fertilisation?
What happens during fertilisation?
Haploid gametes combine, restoring diploid
What does genetic variation from meiosis allow?
What does genetic variation from meiosis allow?
Adaptation to environmental changes
How many rounds of nuclear division occur in meiosis?
How many rounds of nuclear division occur in meiosis?
2 rounds
What type of cells does meiosis produce?
What type of cells does meiosis produce?
Haploid cells with half the chromosomes
Where does meiosis occur in humans?
Where does meiosis occur in humans?
In the ovaries and testes
In humans, how many chromosomes do daughter cells have after meiosis?
In humans, how many chromosomes do daughter cells have after meiosis?
23 chromosomes (haploid)
What does meiosis produce for sexual reproduction?
What does meiosis produce for sexual reproduction?
Haploid gametes (sperm and egg cells)
How does meiosis maintain chromosome number across generations?
How does meiosis maintain chromosome number across generations?
Haploid gametes combine at fertilisation
What does meiosis produce in flowering plants?
What does meiosis produce in flowering plants?
Cells that develop into pollen and eggs
What causes genetic variation during meiosis?
What causes genetic variation during meiosis?
Crossing over and independent assortment
What advantage does genetic variation provide to populations?
What advantage does genetic variation provide to populations?
Adaptation, survival, disease resistance
How many rounds of nuclear division occur in meiosis?
How many rounds of nuclear division occur in meiosis?
2 rounds
What is the genetic outcome difference between mitosis and meiosis?
What is the genetic outcome difference between mitosis and meiosis?
Mitosis: identical; Meiosis: variation