Multiple choice

Which of the following statements is/are correct?

a. The sex of a human offspring is decided by the chromosome of sperm at the time of fertilisation. b. In some reptiles, the temperature at which the fertilised egg is incubated before hatching determines the sex of the hatched progeny. c. In some animals, individuals can change sex and it is not determined genetically.

  1. a and b

  2. a and c

  3. b and c

  4. a, b and c

  5. a only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as all the statements are correct. The sex of a human offspring is decided by the chromosome of sperm at the time of fertilisation. In some reptiles, the temperature at which the fertilised egg is incubated before hatching determines the sex of the hatched progeny. In some animals, individuals can change sex and it is not determined genetically.

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