In humans, if the SRY gene is not expressed, the unspecialized gonads develop into
A) testes.
B) ovaries.
C) a tumorous mass.
D) gametes.
B) ovaries.
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Four of the five answers listed below are
related to RNA synthesis. Select the EXCEPTION.
a. nucleotides b. thymine c. RNA polymerase d. messenger RNA e. DNA
Transmembrane proteins involved in detecting external chemical signals and relaying that information to the cell are known as ________ proteins
Fill in the blank with correct word.
Which of the following genes would most likely play a role in promoting kin selection?
A. the genes important for the development of large antlers in the caribou B. Major Histocompatibility Complex (MHC) genes -- allow mammals to recognize related individuals C. SRY -- the gene that initiates male sex determination D. wingless -- critical for the formation of wings in fruit flies
Enzymes that catalyze removal of carbon dioxide from a substrate are called
A. ligases. B. phosphotransferases. C. decarboxylases. D. aminotransferases. E. oxidoreductases.