Insertion mutations are often caused by

a. base-pair substitutions.
b. frameshift mutations.
c. transposable elements.
d. gene duplications.
e. deletions


C

Biology & Microbiology

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Which process involves an increase in entropy of the system?

A) freezing of ice B) any spontaneous process C) combustion of paper D) formation of raindrops E) synthesis of cellulose

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Oversecretion of growth hormone in adulthood results in

a. pituitary gigantism. b. acromegaly. c. pituitary dwarfism. d. diabetes insipidus. e. cretinism.

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Nephridia are the paired structures used in excretion in

A. planarians. B. humans. C. insects. D. earthworms.

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The fossil record is usually derived from sedimentary rocks laid down millions of years ago.

a. true b. false

Biology & Microbiology