Sex Determination (AQA GCSE Biology): Flashcards
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Practise the cards
12 cards from this deck
How many chromosome pairs in human body cells?
How many chromosome pairs in human body cells?
23 pairs
How many chromosome pairs control characteristics?
How many chromosome pairs control characteristics?
22 pairs
Which pair carries sex determining genes?
Which pair carries sex determining genes?
23rd pair
Two types of sex chromosomes
Two types of sex chromosomes
X and Y chromosomes
Female sex chromosome composition
Female sex chromosome composition
Two X chromosomes (XX)
Male sex chromosome composition
Male sex chromosome composition
One X and one Y chromosome (XY)
Sex chromosomes passed by females in eggs
Sex chromosomes passed by females in eggs
X chromosomes only
Sex chromosomes males can pass in sperm
Sex chromosomes males can pass in sperm
X or Y chromosomes
Tool used to show sex inheritance
Tool used to show sex inheritance
Punnett squares
Probability of child being male
Probability of child being male
50%
Probability of child being female
Probability of child being female
50%
How many sex chromosomes in each gamete after meiosis?
How many sex chromosomes in each gamete after meiosis?
One