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800 College Boards
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cbrd45
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module3
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1992-01-01
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180 lines
NEW SET
A
Type the letter of the best answer.
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1
1. Darwin believed that:
(A) man has descended from the present-day apes
(B) evolution primarily comes about through the survival of the
fittest
(C) evolution takes place by the action of mutations
(D) evolution ceased with the creation of man
(E) evolution of man follows the theory of acquired characteristics
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b
0
2
Correct.
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wrong answer explanation
2
(B) Charles Darwin upheld the principle of survival of the fittest in his
theory of natural selection.
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2
2. Which statement concerning an allelic pair of genes controlling a single
characteristic in man is true?
(A) Both genes come from the father.
(B) Both genes come from the mother.
(C) One gene comes from the father and one gene comes from the mother.
(D) The genes come randomly in pairs from either the father or the
mother.
(E) Both genes are the direct result of mutations occurring simultaneously
in both the mother and father.
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c
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3
Correct.
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wrong answer explanation
3
(C) Two genes in the same relative position on two homologous chromosomes
are alleles. One member of each homologous chromosome pair comes from
each parent.
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3
3. The DNA code is directly dependent upon the:
(A) number of carbons in the sugars
(B) number of deoxyribose molecules
(C) arrangement of purine-pyrimidine pairs
(D) position of the phosphate groups
(E) number of phosphate groups
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c
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4
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wrong answer explanation
4
(C) The stepwise (lengthwise) configuration of the single and double ring
compounds arranged within the DNA molecule determines the genetic code, its
meaning, and net effect.
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4
4. A plant that carries on very little transpiration in its natural
environment would most likely have a:
(A) thick leaf cuticle, few stomata, and hairy leaves
(B) thick leaf cuticle, many stomata, and smooth leaves
(C) thin leaf cuticle, few stomata, and smooth leaves
(D) thin leaf cuticle, many stomata, and smooth leaves
(E) thin leaf cuticle, few stomata, and hairy leaves
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a
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5
Correct.
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wrong answer explanation
5
(A) Desert plants retard water loss.
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5
5. Which of the following names the essential organisms in the nitrogen
cycle?
(A) the decay causers, the nitrifiers, the dentrifiers
(B) the decay causers, the nitrifiers
(C) the decay causers
(D) the decay causers, the nitrifiers, the dentrifiers, and the
nitrogen fixers
(E) the decay causers, the nitrifiers, the dentrifiers, the nitrogen
fixers, plants, and animals
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e
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6
Correct.
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wrong answer explanation
6
(E) Plants and animals are essential.
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6
6. Which statement is FALSE?
(A) A butterfly that is difficult to recognize among foliage exhibits
a morphological adaptation.
(B) The bones of a man's arm and those of a dog's foreleg are very much
alike.
(C) Organisms may look very much alike but be very different in ancestry.
(D) The most valid evidence that an individual belongs to a particular
species is the anatomy of the individual.
(E) All of the statements are true.
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d
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B
Correct.
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wrong answer explanation
B
(D) Successful mating shows belonging.
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NEW SET
B
Each question has a statement (S) and a reason (R). Indicate whether:
(A) both S and R are true, and R correctly explains S
(B) both S and R are true, but R does NOT correctly explain S
(C) S is true but R is false
(D) S is false but R is true
(E) both S and R are false
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1
7. Darwin disagreed with Lamarck's theory of liquid inheritance BECAUSE
Darwin believed evolution occurred by natural selection.
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d
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2
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2
(D) Lamarck believed that responses to the environment brought about structural
changes which could be inherited.
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2
8. A grasshopper's trachea is functionally the same as a human's BECAUSE in
both, it carries outside air to the capillaries.
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a
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3
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3
(A) The trachea plays the same functional role in both grasshoppers and humans.
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3
9. A twelve-year-old boy with an IQ score of 100 got more questions right on an
IQ test than a ten-year-old boy did, but the ten-year-old also got an IQ
score of 100 BECAUSE IQ scores are adjusted for age.
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a
0
C
Correct.
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wrong answer explanation
C
(A) The intelligence quotient measures intelligence relative to age.
end