Chromosomes (AQA GCSE Biology): 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 are chromosomes made up of?
What are chromosomes made up of?
Long, tightly coiled strands of DNA
What are genes?
What are genes?
Short sections of DNA on chromosomes
What do genes provide instructions for?
What do genes provide instructions for?
Making a specific protein
How many pairs of chromosomes are in human body cells?
How many pairs of chromosomes are in human body cells?
23 pairs
What is the total number of chromosomes in human body cells?
What is the total number of chromosomes in human body cells?
46
Where does each chromosome in a pair come from?
Where does each chromosome in a pair come from?
One from mother, one from father
How many chromosomes do gametes contain?
How many chromosomes do gametes contain?
23
Which cells are examples of gametes?
Which cells are examples of gametes?
Sperm and egg cells
What happens when gametes combine during fertilization?
What happens when gametes combine during fertilization?
The embryo has 46 chromosomes
What is the role of the nucleus in a cell?
What is the role of the nucleus in a cell?
Control centre of the cell
What does the nucleus contain?
What does the nucleus contain?
Genetic information
What do proteins made by genes influence?
What do proteins made by genes influence?
Particular characteristics or traits