Sex Determination Principles of Inheritance and Variation Principles of Inheritance & Variation Biology NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

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 |

79%

From NCERT

AIPMT - 2011

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The probability of four sons to a couple is:

1.	1/4	2.	1/8
3.	1/16	4.	1/32

Subtopic: Sex Determination |

From NCERT

AIPMT - 2001

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