Which of the following characteristics separates primates from other mammals?
A. Primates are all placental animals,
whereas other mammals are not.
B. Primates all have opposable thumbs,
whereas other mammals do not.
C. Primates have nails instead of claws.
D. Primates can regulate their body
temperature.
E. Primates are the only mammals that have
eyes on the front of the face.
C
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In the Watson–Crick model of DNA structure, the polynucleotide chains ____
a. are of unequal length b. are arranged with the bases forming the backbone of the helix c. form covalent bonds between uracil and adenine d. are oriented in the same direction e. are oriented in opposite directions
Homoplasies are the result of convergent evolution
a. True b. False
Give a possible interpretation of the finding that the number of mutational events that occur during the transition from
normal to malignant cells is much larger than previously thought. What will be an ideal response?
A DNA nucleotide is made up of
A) phosphate-deoxyribose-base. B) base-phosphate-glucose. C) phosphate-deoxyribose-phosphate-deoxyribose. D) phospholipid-deoxyribose-base. E) adenine-thymine-guanine-cytosine.