Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 34, Endocrine and Reproductive Systems - 34.3 - The Reproductive System - 34.3 Assessment - Page 994: 1b

Answer

Both male and female embryos develop nearly identically up to the seventh week. After that testosterone is produced in the male embryo and estrogen is produced in the female embryo.

Work Step by Step

As above
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