In a physical map, distances are measured in
A) recombination frequencies.
B) number of SNPs.
C) base pairs.
D) probabilities.
E) microns.
C
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Which of the following is not a feature of yeast artificial chromosomes (YACs) and YAC vectors?
A. CEN sequences for stability and proper segregation B. selectable markers in each arm to ensure their presence in the final construct C. yeast origin of replication D. a circular form in the yeast cell E. TEL sequences for stability and proper segregation
In addition to killing cancer cells, radiation therapy results in the death of normal cells. However, unlike cancer cells, normal cells recover from exposure to the radiation more readily
Indicate whether the statement is true or false
A researcher returns from the Amazon River with 10 individuals of a species of fish and establishes a small breeding colony in her laboratory
She maintains the colony for several years (many fish generations), always maintaining the number of adult fish between 10 and 30. She notices that as generations of fish are bred, the reproductive rate decreases. What is the most likely reason for this? A) inbreeding depression B) increased genetic variability C) random mutations D) heterozygote advantage
Which of the following is a cellular characteristic of ALL eukaryotes?
a) a nuclear membrane b) a cell wall c) a nucleoid d) few to no organelles in the cytoplasm e) few to no proteins associated with the DNA