Which of the following best describes how cheetahs are adapted to deal with the heat generated by their extreme sprint speeds?
A. They can store up to 60 times the heat
generated at rest, but only for short periods.
B. They can store up to 60 times the heat
generated at rest for long chases.
C. They can store about twice the heat
generated at rest for long chases.
D. They can store up to 100 times the heat
generated at rest, but only for short periods.
E. They can store about 20 times the heat
generated at rest for long chases.
A
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Based on the theory of natural selection, if an allele is disadvantageous to a population, how could one expect the frequency of that allele to change over time?
a. the frequency of the disadvantageous allele would increase over time b. the frequency of the disadvantageous allele would decrease over time c. the frequency of the disadvantageous allele would not change over time d. it is impossible to determine how the allele frequency would change over time
How can the analysis of mammalian genomes be used to detect and treat human disease? Check all that apply.A) The genomes of the mammalian relatives of humans are the best targets for discovering new treatments for human diseases.B) Comparing the genomes of bacteria and host is likely to reveal good drug targets to eliminate the bacteria without harming the host.C) A comparison of mouse and human genomes would help reveal functions for previously unidentified human genes.D) A comparison of human and mouse genomes would help observe DNA sequences that evolved prior to the evolution of mammals.
What will be an ideal response?
You are a forensic technician working on a DNA sample obtained from a crime scene. Your job is to compare the unknown DNA sample with known DNA samples collected from five different suspects. Preliminary analysis using only a few DNA markers revealed that the unknown sample could possibly match two of the suspects. After consulting the case file, you find out that these two suspects are brothers (but not twins). You realize that you will have to do a more detailed analysis on the samples so that you can distinguish between the brothers and determine which brothers' DNA matches the unknown sample.Which of the following will help you distinguish between the two final suspects?
A. markers on the Y chromosome B. linkage data C. human genome map D. single nucleotide polymorphisms (SNPs)
Which of the following is a product of recombinant DNA technology?
A. bacteria that produce vitamins B. bacteria that produce insulin C. microbes that produce vaccines D. humans that produce vaccines E. microbes that produce vitamins, insulin and vaccines