Variation (Leaving Cert Biology): Quizzes
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Practise the questions
9 questions from this quiz
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Practise the questions
9 questions from this quiz
What is variation?
What is variation?
Differences between members of a species
Can evolution occur without variation?
Can evolution occur without variation?
No
How many causes of variation are there?
How many causes of variation are there?
Two
Which two processes cause variation?
Which two processes cause variation?
Sexual reproduction and mutations
What is a mutation?
What is a mutation?
A change in the amount or structure of DNA
How does sexual reproduction cause variation?
How does sexual reproduction cause variation?
Through meiosis and fertilisation
What two mechanisms in meiosis cause variation?
What two mechanisms in meiosis cause variation?
Crossing over and random assortment
What does fertilisation do to cause variation?
What does fertilisation do to cause variation?
Combines genetic material from two parents
Which process involves crossing over and random assortment of chromosomes?
Which process involves crossing over and random assortment of chromosomes?
Meiosis