What is the most likely explanation for how a group of crocodiles acquired the trait in which lower incubation temperatures give rise to male crocodiles?
A. Horizontal gene transfer from a related species has introduced changes in this group’s genome.
B. Horizontal gene transfer from a related species has introduced changes in this group’s proteome.
C. One or more mutations in the genome have been passed through the group by vertical descent.
D. One or more mutations in the proteome have been passed through the group by vertical descent.
C. One or more mutations in the genome have been passed through the group by vertical descent.
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Homologous genes that are found in different species are called
A. paralogs. B. orthologs C. gene families. D. clades.
In water, MgCl2 dissociates into Mg2+ and Cl-. Based on this information what type of bond is involved in the formation of MgCl2?
A. hydrogen. B. ionic. C. polar covalent. D. nonpolar covalent. E. electrostatic.
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What will be an ideal response?
The cells of sprinters' muscles often use which process to form ATP?
a. aerobic respiration b. lactate fermentation c. pyruvate fermentation d. oxidative phosphorylation e. gluconeogenesis