Class 12 Biology · Chapter 6 · Test 4
Sex Determination and Linkage
38 MCQs
38 questions · 35 min · 38 marks
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Sample questions
The first 5 of 38. Try each one, then tap to see the answer.
Question 1
The sex of an animal is determined during its:
- AEmbryonic development
- BAdult life
- COld age
- DPuberty
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Answer: A
Sex is decided during embryonic development.
Question 2
The complete set of chromosomes in the cells of an organism is called its:
- AGenotype
- BKaryotype
- CPhenotype
- DLocus
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Answer: B
A karyotype includes the number sizes and shapes of chromosomes.
Question 3
Chromosomes that are perfectly similar in female and male are called:
- AAutosomes
- BSex chromosomes
- CHomologues only
- DAllosomes
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Answer: A
One pair differs between the sexes and determines gender.
Question 4
The pair of chromosomes that determines gender is called:
- AAutosomes
- BSex chromosomes
- CKaryotype
- DGenome
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Answer: B
Sex chromosomes differ between the female and male.
Question 5
The XX-XY system of sex determination is found in:
- ADrosophila and mammals
- BBirds
- CGrasshoppers only
- DReptiles only
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Answer: A
It is also found in most other vertebrates.
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