Chapter 10 Discovery of genes, alleles and Deoxyribonucleic Acid.
Answers: Genes, alleles, nucleotide sequence
description
Transcript of Answers: Genes, alleles, nucleotide sequence
Answers: Genes, alleles, nucleotide sequence
• Questions:– You share 99% of your ___________ with a
chimpanzee.– You share 60% of your ___________ with a
banana.– 50% of your ___________ came from your
mother.
• What is a gene?
Fig. 18.8
• Draw the cell cycle.• Why does the cell cycle matter?
Fig. 12.5
Mitosis
• Draw a chromosome as it would look at each stage of the cell cycle.
Fig. 5.28
Fig. 12.4
Centromere
• What is a chromosome made of?
Fig. 16.21
Histones are critical for DNA structure
What makes the dominant allele dominant?
Sickle cell?Cystic fibrosis?Huntington’s disease?Blood type?Mendel’s wrinkly peas?
• What is the central dogma of genetics?
Fig. 17.4—The Central Dogma of Genetics
Transcription Analogy
Who is the scribe?
TranslationAnalogy
Who is the chef?
Fig. 17.25
mRNA’s from 5 genes in fruit-fly embryo
Why isn’t every gene expressed in every cell?
Fig. 18.6
Gene Regulation=
Controlling if a gene makes a functional product (protein) or not
DNA methylationpg. 358
CH3
http://cnx.org/content/m26565/latest/graphics35.jpg
Euchromatin and Heterochromatin
Fig. 18.10
Fig. 18.11
Fig. 18.13
• Diagram meiosis of the X and Y chromosomes in spermatogenesis… Start with a G1 cell.