DNA is now often used as evidence in criminal trials. It is particularly useful because it can be found in
a) saliva
b) blood
c) hair
d) dead skin cells
e) all of the above answer choices are correct
Answer: e) all of the above answer choices are correct
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A group of organisms sharing a derived
character is a
a. clade. b. taxon. c. tribe. d. community. e. population
Ovulation is triggered by ____
a. high levels of LH b. low levels of LH c. low levels of estrogen d. high levels of estrogen e. high levels of progesterone
Which of the following is not part of Darwin's mechanism of evolution?
a. overproduction of offspring b. competition among organisms c. acquiring traits because they are needed d. differential reproductive success e. genetic variation among individuals
The genetic code is
A) a set of two base sequences coding for each amino acid. B) used during the translation of DNA to mRNA. C) read in sets of three bases called codons. D) different in different organisms.