8-29-11 - Why arent clones more successful? heterochromatin...

Info iconThis preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon
Why aren’t clones more successful? heterochromatin
Background image of page 1

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

View Full DocumentRight Arrow Icon
Histone methylation regulates transcription
Background image of page 2
Other Histone modifications (Munshi 09 J. Genet. Genomics 75-88)
Background image of page 3

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

View Full DocumentRight Arrow Icon
Methylation of DNA can also inhibit gene expression
Background image of page 4
The concept of preformation Dev Bio used to be easy
Background image of page 5

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

View Full DocumentRight Arrow Icon
Contact and recognition between sperm and egg Fusion of two cells. Regulation of sperm entry – only one Fusion of two haploid gamete genomes Activation of egg metabolism Reactivation of the cell cycle Fertilization: how do two gametes find each other and make a new organisms?
Background image of page 6
Gametes: Sperm sperm – spermatozoa: “sperm animals”
Background image of page 7

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

View Full DocumentRight Arrow Icon
Sperm production
Background image of page 8
Sperm motility is microtubule based 9 by 2 arrangement Kartagener syndrome : infertility and situs inversus protofilaments
Background image of page 9

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

View Full DocumentRight Arrow Icon
Emu 5 in. Ostrich 7 in.
Background image of page 10
The structure of the egg
Background image of page 11

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

View Full DocumentRight Arrow Icon
The egg cytoplasm is concentrated in egg during meioses contains proteins, mRNA necessary for initial development secondary ooctye polar body
Background image of page 12
Background image of page 13

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

View Full DocumentRight Arrow Icon
Vitelline envelope/Zona pellucida: extracellular matrix, involved in sperm recognition.
Background image of page 14
Image of page 15
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

8-29-11 - Why arent clones more successful? heterochromatin...

This preview shows document pages 1 - 15. Sign up to view the full document.

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