The nodes on a cladogram represent
a. periods of extinction.
b. derived characters.
c. clades.
d. common ancestors.
e. exaptations
D
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____ occurs within a single plant, while ____ occurs between two plants
a. A dihybrid cross; a monohybrid cross b. Epistasis; polygenic inheritance c. A testcross; cross-pollination d. Self-pollination; cross-pollination e. A dihybrid cross; self-pollination
Destruction of the motor areas in the left cerebral cortex results in the loss of
a. sensation on the right side of the body. b. sensation on the left side of the body. c. voluntary movement on the left side of the body. d. voluntary movement on the right side of the body. e. basic sex drive.
Some genes in bacteria are repressed by antisense RNA that binds to them.
Answer the following statement true (T) or false (F)
Which of the following is a dominant allele?
A. a B. AA C. ab D. A E. Ab