The sex determining mechanism in case of humans is XY type. Sperms are of two types, one containing X-chromosome and another containing Y-chromosome. The ovum is of one type only, ie, contain X chromosome. The fertilization of ovum with Y-chromosome carrying sperm results into a male offspring.
Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?
NEET UG 2011 — Zoology Principles of Inheritance and Variation
2011mcqmedium
Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?
Official previous-year question
Held on 30 Apr 2011 · Verified 9 Jul 2026.
Options
- A
Two X-chromosomes
- B
Only one Y-chromosome
- C
Only one X-chromosome
- D
One X and one Y-chromosome
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