Selective Breeding (OCR GCSE Biology A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is selective breeding?
What is selective breeding?
Humans choosing organisms to breed
Which is a desirable characteristic in selective breeding of animals?
Which is a desirable characteristic in selective breeding of animals?
More meat
Which is a desirable characteristic in selective breeding of plants?
Which is a desirable characteristic in selective breeding of plants?
Disease resistance
How many times is the selective breeding process repeated?
How many times is the selective breeding process repeated?
Many times
What is the first step in selective breeding?
What is the first step in selective breeding?
Parents with desired traits are chosen
What problem can selective breeding lead to?
What problem can selective breeding lead to?
Inbreeding
Why does selective breeding cause inbreeding?
Why does selective breeding cause inbreeding?
Breeds closely related individuals
What happens to the gene pool due to inbreeding?
What happens to the gene pool due to inbreeding?
It reduces
What could happen if the environment changes after selective breeding?
What could happen if the environment changes after selective breeding?
Species could become extinct
Why does selective breeding increase extinction risk?
Why does selective breeding increase extinction risk?
All have the same genetic make-up
What does a small gene pool increase the chance of?
What does a small gene pool increase the chance of?
Genetic defects in offspring
Why are genetic defects more likely with a small gene pool?
Why are genetic defects more likely with a small gene pool?
Recessive traits present more often