Cl05ppt - MCDB 4650 Class 5 Fertilization and Cleavage...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
MCDB 4650 Class 5 Fertilization and Cleavage Describe, in a general way, the process of fertilization and the different features of sperm and oocyte. Explain how the orientation of cleavage planes is determined. Relate the orientation of cleavage planes to establishment of cell fate. Explain the importance of and predict consequence of the mid- blastula transition
Background image of page 1

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

View Full DocumentRight Arrow Icon
Eggs are at different stages of maturation at ertilization depending on the organism fertilization depending on the organism 7.5
Background image of page 2
tages in mammalian egg maturation 1st arrest in G2 phase of eiosis I 2nd arrest at metaphase of eiosis II Stages in mammalian egg maturation meiosis I meiosis II Ovulation
Background image of page 3

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

View Full DocumentRight Arrow Icon
Typical ructure structure of sperm G 7.2
Background image of page 4
ypical structure of an egg Typical structure of an egg
Background image of page 5

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

View Full DocumentRight Arrow Icon
Which of the following statements best describes the process of fertilization? a) the egg reacts to signals from the sperm. b) the sperm reacts to signals from the egg. c) each of the two gametes reacts to signal from the other. What are some ways they can unite?
Background image of page 6
Protein components of the egg zona pelucida Mammalian fertilization
Background image of page 7

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

View Full DocumentRight Arrow Icon
ammalian Mammalian fertilization What happens to the mitochondria of the sperm? hey don’t enter the egg a. They don t enter the egg b. They are degraded completely c. They function alongside the mitochondria from the egg in the fertilized embryo What component of sperm is important for continued development (besides the nuclear contents)?
Background image of page 8
Fusion of the two pronuclei (sperm and egg) Blue: DNA reen: microtubules green: microtubules Sperm centriole organizes the first aster and spindle for the first division In mammalian eggs, the contents of each ucleus actually nucleus actually replicate before joining in the center to begin first mitosis
Background image of page 9

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

View Full DocumentRight Arrow Icon
What events does fertilization trigger?
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/25/2010 for the course MCDB 4650 taught by Professor Staff during the Spring '08 term at Colorado.

Page1 / 37

Cl05ppt - MCDB 4650 Class 5 Fertilization and Cleavage...

This preview shows document pages 1 - 11. Sign up to view the full document.

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