2_BIOL1510-Module+4-Lecture+2+Genetics+Sakai

2_BIOL1510-Module+4-Lecture+2+Genetics+Sakai - Whats the...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
What’s the purpose of meiosis, and how is it different from mitosis? meiosis mitosis
Background image of page 1

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

View Full DocumentRight Arrow Icon
Meiosis I: the first division – where the interesting stuff happens! Prophase I: homologous chromosomes pair and synapse crossing over (chiasmata) Metaphase I: homologous chromosomes separate sister chromatids still joined at centromeres Anaphase I Telophase I (not present in some species) (See Figure 13.8)
Background image of page 2
Meiosis II – like mitosis of a haploid cell No DNA replication between meiosis I and II Only haploid (1n) chromosome number Sister chromatids separate
Background image of page 3

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

View Full DocumentRight Arrow Icon
Q: Which number(s) represent(s) the haploid state? a) I b) II c) III d) IV e) III and IV III IV meiosis
Background image of page 4
Crossing over increases chromosome diversity Q: At what stage does this crossing over occur? a) Interphase b) Meiotic Prophase I c) Meiotic Metaphase I d) Meiotic Prophase II e) Mitotic prophase
Background image of page 5

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

View Full DocumentRight Arrow Icon
Comparing mitosis to meiosis Ultimate function is… Cell division for growth, repair, and asexual reproduction. Ploidy Figure 13.9 Creation of haploid germ cells for reproduction in sexual species Ploidy
Background image of page 6
How does chromosomal alignment (karyotypes) inform diagnoses? How are single-gene traits inherited?
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/01/2011 for the course BIOL 1510 taught by Professor Jungh.choi during the Spring '07 term at Georgia Tech.

Page1 / 25

2_BIOL1510-Module+4-Lecture+2+Genetics+Sakai - Whats the...

This preview shows document pages 1 - 8. Sign up to view the full document.

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