What is Life? A Guide to Biology with Physiology
What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 6, Problem 14MC
Summary Introduction

Introduction:

Phenotypicaly X and Y chromosomes look very different from each other. The X chromosome is relatively large and carries a great deal of genetic information. The Y chromosome is tiny and carries genetic information about only a very small number of traits. The genetic instructions on the Y chromosome instruct the fetal gonads to develop as testes rather than ovaries.

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