IB Biology HL 2.5.11 Sex chromosomes and testis development Question Bank
Practise IB Biology HL 2.5.11 by analysing the genetic basis of male gonad development.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Distinguish autosomes from sex chromosomes in human karyotypes.
- Explain the genetic signal that initiates testis development in an embryo.
D3.2.11—Sex determination question 1
[Maximum number: 1]
What causes gonads to develop as testes in humans?
A
Effect of placental hormones
B
Initiation of testosterone secretion in puberty
C
Development of secondary sexual characteristics
D
Activation and transcription of a gene on the Y chromosome
D
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