Genetic terms (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What process forms gametes in reproductive organs?
What process forms gametes in reproductive organs?
Meiosis
How many copies of each chromosome do most body cells have?
How many copies of each chromosome do most body cells have?
Two copies
What do genes contain instructions for making?
What do genes contain instructions for making?
Specific proteins
What are alleles?
What are alleles?
Different versions of the same gene
What is phenotype?
What is phenotype?
Observable physical characteristics
What does homozygous mean?
What does homozygous mean?
Two identical alleles for a gene
Which genotype is heterozygous?
Which genotype is heterozygous?
Bb
How are dominant alleles represented?
How are dominant alleles represented?
Capital letters
When are recessive alleles expressed in the phenotype?
When are recessive alleles expressed in the phenotype?
When two copies are present
For mouse fur, if B=black (dominant) & b=brown (recessive), what phenotype does Bb have?
For mouse fur, if B=black (dominant) & b=brown (recessive), what phenotype does Bb have?
Black fur