The pronghorn antelope of the United States and the saiga antelope of the central Asian steppes live in similar habitats and have similar adaptations. Which of the following features would you be surprised to find in a saiga antelope?
A) camouflaging coloration
B) teeth adapted to grinding tough forage
C) a warmly insulating winter coat
D) a digestive tract without cellulose-digesting bacteria
Answer: D
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When a eukaryotic gene is cloned into a bacterium, the advantage of a complementary DNA (cDNA) gene being used instead of fragments of genomic DNA is that
A. the introns have been removed from the cDNA gene but not from the genomic fragment. B. the promoter and terminator are found in the cDNA gene but not in the genomic fragment. C. the cDNA is made with the nucleotides found in the prokaryote but not in the eukaryote. D. There is no advantage to using a cDNA gene rather than a genomic fragment.
About half of all flowering plant species, including many important crop plants, are ____
a. polyploids b. haploids c. aneuploids d. monoploids e. diploids
The letter "A" in the above figure represents
a. transverse. b. radial. c. tangential. d. elliptical. e. obtuse.
Which of the following do(es) not contribute to the construction of membrane phospholipids?
A. Fatty acid biosynthesis B. Glycolysis C. Amino acid biosynthesis D. Nucleotide biosynthesis