Sex Determination (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How many pairs of chromosomes do human body cells have?
How many pairs of chromosomes do human body cells have?
23 pairs
How many pairs of chromosomes control characteristics?
How many pairs of chromosomes control characteristics?
22 pairs
Which pair of chromosomes carries sex determining genes?
Which pair of chromosomes carries sex determining genes?
The 23rd pair
How does the size of Y chromosomes compare to X chromosomes?
How does the size of Y chromosomes compare to X chromosomes?
Y chromosomes are much smaller
What sex chromosomes do females have?
What sex chromosomes do females have?
Two X chromosomes
What sex chromosomes do males have?
What sex chromosomes do males have?
One X and one Y chromosome
Which sex chromosomes do females pass on in their eggs?
Which sex chromosomes do females pass on in their eggs?
Only X chromosomes
Which sex chromosomes can males pass on in their sperm?
Which sex chromosomes can males pass on in their sperm?
Either X or Y chromosomes
What is the chance of a child being male?
What is the chance of a child being male?
50%
What is the chance of a child being female?
What is the chance of a child being female?
50%