Lecture 34 - The Reproductive System After this class, you...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
11/19/2010 1 The Reproductive System After this class, you should be able to: • Contrast sexual and asexual reproduction. • Contrast vertebrate strategies for fertilization and development. • Contrast spermatogenesis and oogenesis in humans. • Summarize the roles of the hormones involved in the human reproductive system.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
11/19/2010 2 Sexual vs. Asexual Reproduction Figure 11.1 Figure 53.1
Background image of page 2
11/19/2010 3 Sex Determination Systems • Genetic Sex Determination – Genes determine sex – Mammals: XY = male, XX = female – Birds: ZZ = male, ZW = female – Grasshoppers: XO = male, XX = female • Environmental Sex Determination – Temperature-sensitive sex determination (fish and reptiles)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
11/19/2010 4 Figure 53.3
Background image of page 4
5 Fertilization: External vs. Internal • External Fertilization – Mainly in aquatic environments – Large numbers of gametes – Coordination of gamete release (role for pheromones?) • Internal Fertilization – Copulation (direct transfer of sperm into female reproductive tract)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/03/2011 for the course BIOL 104 taught by Professor Bray-speth during the Fall '11 term at Saint Louis.

Page1 / 16

Lecture 34 - The Reproductive System After this class, you...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online