Lec_6 - CHAPTER 4 DNA AND CHROMOSOMES What is the Heritable...

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

View Full Document Right Arrow Icon
CHAPTER 4 DNA AND CHROMOSOMES
Background image of page 1

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

View Full DocumentRight Arrow Icon
What is the Heritable Material? Figure 4-2 Molecular Biology of the Cell (© Garland Science 2008)
Background image of page 2
THE STRUCTURE AND FUNCTION OF DNA Key features: Polynucleotide Double stranded Base pairing Antiparallel Helix Polarity Phosphodiester backbone on the outside and base pairs on the inside of the helix Figure 4-3 Molecular Biology of the Cell (© Garland Science 2008)
Background image of page 3

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

View Full DocumentRight Arrow Icon
Figure 4-4 Molecular Biology of the Cell (© Garland Science 2008) Hydrogen bonds are the basis for base pairing: G:C stronger than A:T.
Background image of page 4
THE STRUCTURE DNA Figure 4-5 Molecular Biology of the Cell (© Garland Science 2008) Double helix
Background image of page 5

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

View Full DocumentRight Arrow Icon
Eukaryotes - DNA is enclosed in nucleus Figure 4-9 Molecular Biology of the Cell (© Garland Science 2008)
Background image of page 6
Chromosomes Human - 46 chromosomes 23 maternal and 23 paternal chromosomes 22 autosome pairs 1 sex chromosome pair Matching pairs are called homologous chromosomes Observed in a condensed state during mitosis - the display of chromosomes is called karyotype. Eukaryotic chromosomes are linear.
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 09/16/2008 for the course MICRB 251 taught by Professor Gilmour,davidscoreese,josephc.tien,ming during the Fall '08 term at Penn State.

Page1 / 24

Lec_6 - CHAPTER 4 DNA AND CHROMOSOMES What is the Heritable...

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