In the absence of sufficient quantities of 5-alpha-reductase
a. 5-alpha-dihydrotestosterone is not converted into testosterone, and external genitalia are not masculinized in the fetus.
b. testosterone is not converted into 5-alpha-dihydrotesterone, and external genitalia are not masculinized in the fetus.
c. 5-alpha-dihydrotestosterone is not converted into testosterone, and internal organs are not masculinized in the fetus.
d. testosterone is not converted into 5-alpha-dihydrotesterone, and internal organs are not masculinized in the fetus.
b
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Developing the ability to grab with the full hand before the ability to pick up something with a finger and thumb is best considered to be an example of the:
a. gross-to-specific trend b. proximodistal trend c. cephalocaudal trend d. differentiated-to-integrated trend
Boys who mature early usually experience more adjustment problems than do boys who mature late
Indicate whether the statement is true or false