A graph that shows the strength of an effect of a substance at different doses is a(n) _____ curve.
a. ?negative
b. ?causal
c. ?positive
d. ?dose-response
Answer: d. ?dose-response
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Which of the following is required if a researcher wants to analyze genes in different species for their homologies?
A. relatively short DNA sequences B. relatively short RNA sequences C. relatively long DNA sequences D. relatively short polypeptide sequences E. relative differences in a species' metabolomics
What is the frequency of the heterozygote genotype in this population?
1.0.24
2.0.36
3.0.48
4.0.16
A homeobox gene is one that produces a group of repetitive base sequences such as a VNTR
Indicate whether the statement is true or false
Which of the following statements describe a reason ribosomal genes are useful for comparing evolutionary relationships among organisms?
A. It is possible to compare the large subunit genes with the small subunit genes. B. Ribosomes of prokaryotes and eukaryotes are identical. C. There are many differences in these genes, even among closely related species. D. All organisms possess these genes and they can be compared with each other. E. These are the only genes that have been sequenced for every organism on Earth.