Hormones produced by the testes control the expression of traits for
A. hair color and eye color
B. beard development and number of fingers
C. hair color and voice quality
D. voice quality and beard development
Answer: D. voice quality and beard development
You might also like to view...
Which of the following is not true of viroids?
A. Viroid RNA does not serve as mRNA nor does it direct the synthesis of mRNA. B. Viroids are small circular ssRNA molecules. C. Viroids have no protein capsids. D. Extracellular viroids have a lipid bilayer envelope.
Squalene, spiral valve, electroreceptors, lateral-line system, and claspers are all adaptations associated
with living members of which lineage?
a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii
If a scientist is studying the heritability of IQ, which people would show the highest correlation between their IQ scores?
A) two unrelated children B) a child and his mother C) monozygotic twins D) dizygotic twins
An example of a modern-day jawless fish (agnathan) is a
A. angelfish. B. shark. C. perch. D. lamprey.