Inheritance and Variation (Junior Cert Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key difference between sexual and asexual reproduction?
What is the key difference between sexual and asexual reproduction?
Sexual creates variation, asexual doesn't
How often can bacteria divide to reproduce?
How often can bacteria divide to reproduce?
Every 20 minutes
What is the shape of DNA called?
What is the shape of DNA called?
Double helix
Who provided crucial X-ray photos helping discover DNA structure?
Who provided crucial X-ray photos helping discover DNA structure?
Rosalind Franklin
How many chromosomes do humans have in each cell?
How many chromosomes do humans have in each cell?
chromosomes ( pairs)
Which characteristic is inherited rather than acquired?
Which characteristic is inherited rather than acquired?
Blood type
What does genotype mean?
What does genotype mean?
The genes an organism possesses
In eye colour genetics, brown eyes (B) are dominant to blue (b). What does this mean?
In eye colour genetics, brown eyes (B) are dominant to blue (b). What does this mean?
B prevents b from being expressed
If both parents have Bb genotype for eyes, what % chance of blue-eyed child?
If both parents have Bb genotype for eyes, what % chance of blue-eyed child?
%
In pedigree charts, what is a carrier for a recessive disorder?
In pedigree charts, what is a carrier for a recessive disorder?
Has one gene but no symptoms