Sex Determination in Humans (Leaving Cert Biology): Quizzes
📚Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
How many chromosomes does each human somatic cell contain?
How many chromosomes does each human somatic cell contain?
46 chromosomes
How many pairs of autosomes do humans have?
How many pairs of autosomes do humans have?
22 pairs
What are somatic cells?
What are somatic cells?
Body cells that don't produce gametes
What is the sex chromosome combination in females?
What is the sex chromosome combination in females?
XX
What is the sex chromosome combination in males?
What is the sex chromosome combination in males?
XY
Approximately how many genes does the X chromosome contain?
Approximately how many genes does the X chromosome contain?
1,000 genes
Which parent determines the sex of a child?
Which parent determines the sex of a child?
The father
What sex chromosome do all egg cells carry?
What sex chromosome do all egg cells carry?
X chromosome
Why are males called the heterogametic sex?
Why are males called the heterogametic sex?
They have different sex chromosomes
When is the sex of a child determined?
When is the sex of a child determined?
At the moment of fertilisation