When do the sex differences appear and what triggers them. Concept introduction: The sex determining chromosomes in human beings are X and Y chromosome. The females have two XX chromosomes while male have two distinct XY chromosomes. Y chromosome in males is responsible for the determination of the sex of the unborn child.

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Chapter 35.5, Problem 5MC

Summary Introduction

To determine:

When do the sex differences appear and what triggers them.

Concept introduction:

The sex determining chromosomes in human beings are X and Y chromosome. The females have two XX chromosomes while male have two distinct XY chromosomes. Y chromosome in males is responsible for the determination of the sex of the unborn child.

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