4) A scientist has identified the gene sequence 5'-ATG GGT GAT GTT GAA AAA-3' in a species. The
gene sequence is compared with other species to check for relatedness. The species sequences are
shown in the table below. Based on the gene sequence from the four species, which species
sequence is most closely related to the sequence identified by the scientist?
a. Species 1
b. Species 2
c. Species 3
d. Species 4
Answers: 2
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Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
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According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes
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4) A scientist has identified the gene sequence 5'-ATG GGT GAT GTT GAA AAA-3' in a species. The
gen...
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