✓ Board-verified↻ asked 2×
Science · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q8
Consider the following statements :(i)The sex of a child is determined by what it inherits from the mother.(ii)The sex of a child is determined by what it inherits from the father.(iii)The probability of having a male child is more than that of a female child.(iv)The sex of a child is determined at the time of fertilisation when male and female gametes fuse to form a zygote. The correct statements are :
Consider the following statements :
(i)
The sex of a child is determined by what it inherits from the mother.
(ii)
The sex of a child is determined by what it inherits from the father.
(iii)
The probability of having a male child is more than that of a female child.
(iv)
The sex of a child is determined at the time of fertilisation when male and female gametes fuse to form a zygote. The correct statements are :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
(ii) and (iv)
More from Heredity
- In human beings, there are 23 pairs of chromosomes. Out of these 23 pairs of chromosomes (i.e. 46…2025 · asked 3×
- Two pea plants, one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds were crossed…2026 · asked 3×
- Assertion: Human female has a perfect pair of sex chromosome. Reason (R): Sex chromosome contributed by the…2024 · asked 3×
- Assertion: Human populations show a great deal of variations in traits. Reason (R): All variations in a…2023 · asked 3×
- Assertion: A mango seed will germinate to form a mango tree. Reason (R): Heredity determines the process by…2025 · asked 3×
- All human chromosomes are not paired. Most human chromosomes have a maternal and a paternal copy, and we have…2023 · asked 3×
- Consider the following two statements: (i) The trait that expresses itself in F 1 generation. (ii) The trait…2023 · asked 3×
- Using height (tallness / dwarfness) of a plant as an example, show that genes control the characteristics or…2022 · asked 3×
CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.