Genetics Exam 2
- Virginia Polytechnic Institute and State University
- Biology 2004
- Genetics Exam 2
Last Modified: 2011-06-25
Cannot exceed 100 cM
Are dependent upon crossover frequencies between paired, non-sister chromatids
Are measured in centiMorgans
Used to localize genes on specific chromosomes
Is based on fusion of 2 different lines of cells
hybrid cells will not keep all the chromosome and will lose them randomly
5,000,000 Nucleotide pairs
2 different strains mutant phage infect bacterium. 1 phage d- other is e-
Some of progeny phages are genotype d+e+, some d-e-. What does this show?
transfer of a gene from one bacteria to another bacteria
the F' is involved in bacterial gene transfer
The bacteria receiving the gene becom Merozygotes (having 2 copies of same gene)
It causes imbalance in the amount of gene product
It can cause Pseudo Dominance
It can cause Haplodeficiency
is due to exchange of a short arm of one chromosome with the long arm of another one
is responsible for the formation of the long chromosome 2 in humans
If a DNA molecule is 30% Cytosine(C), what is the percent Guanine (G)?
at least some few genes
origin of replication
is found in humans
is a non-functioning DNA sequence
all have flanking direct repeat on their 2 ends
most have terminal inverted repeat
all have transposase
Can synthesize any sequence specified by a template strand
Require a primer to initiate Synthesis
Used dNTPs to synthesize new DNA
Produce newly synthesized strands that are complementary and antiparallel to the template strand
Synthesize in the 5' --> 3' direction by adding nucleotides to a 3'-OH group
Single Strand DNA or template
raw materials (dNTPs)
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