standard 4 exon gene -where is the polya tail in the gene above? -draw a 4 exon gene where exon 4 is...

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Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

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Page 1: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Standard 4 exon gene

-Where is the polyA tail in the gene above?-Draw a 4 exon gene where exon 4 is all 3’UTR

Page 2: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Chapter 9 and some of 8DNA and the Molecular Structure

of Chromosomes

Page 3: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

The Structures ofDNA and RNA

DNA is usually double-stranded, with

adenine paired with thymine

and guanine paired with

cytosine. RNA is usually single-

stranded and contains uracil in

place of thymine.

Page 4: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

WhenDo weFind RNAMixed with The DNA?

nucleoside = sugar +base

nucleotide = sugar + base + phosphate

Page 5: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Ribonucleotide Reductase

Page 6: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Pyrimidines have the longer name and smaller basePurines have the shorter name and bigger base

Page 7: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

QuickTime™ and a decompressor

are needed to see this picture.

Page 8: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Structure of aPolynucleotide

Chain

Why do weAlways talk aboutDNA going in the 5’ to 3’ direction?

Page 9: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR
Page 10: Standard 4 exon gene -Where is the polyA tail in the gene above? -Draw a 4 exon gene where exon 4 is all 3’UTR

Deoxyribonucleotides

What is dideoxyadenosine triphosphate (ddATP)?

Why are dideoxynucleotides useful in Mol.Bio.?