Cell Division (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 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
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
Where do you inherit your chromosomes from?
Where do you inherit your chromosomes from?
One of each pair from each parent
Why do gametes contain only 23 chromosomes?
Why do gametes contain only 23 chromosomes?
So fertilization produces 46 chromosomes
What influences particular characteristics or traits?
What influences particular characteristics or traits?
Proteins
What is the role of the nucleus?
What is the role of the nucleus?
Control centre containing genetic info
How many genes does each chromosome carry?
How many genes does each chromosome carry?
Many genes