A study of a cohort of 1,000 newborn animals

showed a death rate per individual in year one
of 40 percent and a death rate per individual in
year two of 80 percent. The quantity of
survivors after two years is about



a. 120
b. 200
c. 320
d. 400
e. 1,000


A

Biology & Microbiology

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The number of linkage groups in an organism with sex chromosomes equals:

A. 1n B. 2n +1 C. 1n + 1 D. 2n + 2

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Goal(s) of gene cloning may be to produce

A. a protein. B. many copies of the gene to be used as a probe. C. many copies of the gene for sequencing. D. more copies of the host cell. E. a protein, many copies of the gene to be used as a probe, AND many copies of the gene for sequencing.

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Which of the following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?

a. carbohydrate b. protein c. lipid d. nucleic acid e. steroid

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Discuss the ways in which light rays can be manipulated to increase resolution and/or contrast.

What will be an ideal response?

Biology & Microbiology