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Which one of the following conditions correctly describes the manner of determining the sex in the given example?

1.	XO type of sex chromosomes determines male sex in grasshopper
2.	XO condition in humans as found in Turner syndrome, determines female sex
3.	Homozygous sex chromosomes (XX) produce males in Drosophila
4.	Homozygous sex chromosomes (ZZ) determine the female sex in birds.

Subtopic: Sex Determination |

80%

Level 1: 80%+

AIPMT - 2011

Hints

In which mode of inheritance do you expect more maternal influence among the offspring?

1. Autosomal

2. Cytoplasmic

3. Y-linked

4. X-linked

Subtopic: Sex Determination |

Level 3: 35%-60%

AIPMT - 2006

Hints