Which structure could be incorporated into a protein?

A) alanine
B) ribonucleic acid
C) thymine
D) uracil


A

Biology & Microbiology

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Which structure supports the developing embryo if fertilization occurs?

A. uterus B. cervix C. vagina D. ovary E. fallopian tube or oviduct

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In Drosophila virilis, somatic cell nuclei contain 12 chromosomes while sperm nuclei contain only 6 chromosomes. What does n equal for this species?

A) 3 B) 6 C) 12 D) 24 E) 6 or 12, depending on cell type

Biology & Microbiology

Involuntary muscle includes ________

A) skeletal muscle only B) smooth muscle only C) smooth muscle and cardiac muscle D) smooth muscle, cardiac muscle, and some skeletal muscle

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Whereas gram-negative bacteria such as the Proteobacteria often use ________ as autoinducers, quorum-sensing gram-positives more commonly use ________ that act as autoinducers

a. acyl homoserine lactones / short peptides b. acyl homoserine lactones / quinones c. short peptides / acyl homoserine lactones d. quinones / acyl homoserine lactones

Biology & Microbiology