Which of the following is not a constituent of the nucleus?

A. pores
B. envelope or membrane
C. chromosomes
D. chromatin
E. protein modifying enzymes


E. protein modifying enzymes

Biology & Microbiology

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Two major types of protein secondary structures are referred to as:

a. amino and carboxyl. b. ? helix and ? sheet. c. elementary and primary. d. residual and permanent. e. ionic and covalent.

Biology & Microbiology

A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates

A) the blending model of genetics. B) true-breeding. C) dominance. D) a dihybrid cross. E) the mistakes made by Mendel.

Biology & Microbiology

Which of the following diseases is considered an emerging disease because it was unknown before 1987?

A) anaplasmosis B) Brill-Zinsser disease C) murine typhus D) Rocky Mountain spotted fever E) lymphogranuloma venereum

Biology & Microbiology

The actively replicating form of chlamydias are known as

A. elementary bodies. B. reticulate bodies. C. inclusion bodies. D. initial bodies. E. morula.

Biology & Microbiology