In a plant bending toward light, you would expect ________ to have increased in activity.

A. gibberellins.
B. expansins.
C. cytokinins.
D. ethylene.


Answer: B

Biology & Microbiology

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Vaccines can be developed from synthetic peptides

Indicate whether the statement is true or false.

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A testcross is always performed between the individual that is heterozygous for the genes to be mapped and an individual who is ____________

A. Heterozygous for the genes B. Homozygous dominant for the genes C. Homozygous recessive for the genes D. Lacking the genes E. None of the answers are correct

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Which type of substrate is most likely to contain fossils? a. All of these choices

b. Shale c. Sedimentary rock d. Sandstone e. Mudstone

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Hypophosphatemia (vitamin D—resistant rickets) is inherited as a sex-linked dominant trait. The relevant gene is found on the X chromosome

What is the expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia? A) All of their daughters and none of their sons exhibit hypophosphatemia. B) Fifty percent of their daughters and fifty percent of their sons exhibit hypophosphatemia. C) All of their sons and none of their daughters exhibit hypophosphatemia. D) Twenty-five percent of their offspring exhibit hypophosphatemia.

Biology & Microbiology