The wings of birds and insects share similar functions but evolved from different structures; therefore, these wings are said to be
A) homologous.
B) biramous.
C) uniramous.
D) analogous.
E) bipedal.
D
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Which structure does NOT represent a mode of vegetative reproduction?
A. runners B. rhizoids C. adventitious plantlets D. suckers E. rhizomes F. stolons
A common second messenger molecule is
a. a steroid compound. b. cyclic AMP. c. ADP. d. prostaglandin. e. intermedin.
Nuclear division in which the chromosome number is reduced from 2n to n is part of the lifecycle of all of the following organisms except
A. Molds B. Ferns C. Insects D. Bacteria E. Protozoans
The sequence of the coding strand of a DNA molecule (that is, the DNA strand that contains the codons specifying the protein sequence) is 5'-CGGATGCTTA-3'. What is the sequence of the RNA made from this DNA?
a. 5'-UAAGCAUCCG-3' b. 5'-CGGAUGCUUA-3' c. 5'-AUUCGUAGGC-3' d. 5'-GCCUACGAAU-3' e. 5'-TAAGCATCCG-3'