This is the genetic material for all cellular organisms and some viruses.

A. chromatin
B. RNA
C. protein
D. DNA


Answer: D

Biology & Microbiology

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Spirilla and spirochetes are closely related bacteria that exhibit a unique corkscrew motility

Indicate whether the statement is true or false.

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If an allele is dominant, then:a

its phenotype is only expressed in heterozygous individuals. b. its phenotype is expressed only in homozygous individuals.. c. one allele can mask the expression of a recessive allele in a hybrid. d. its phenotype is always expressed in all generations. e. its phenotype is more beneficial than the recessive phenotype.

Biology & Microbiology

One inanimate source of illness is fumes, which can gain access to the body through:

a. Skin B. Infection C. Inhalation and skin D. skin and digestive skin

Biology & Microbiology

Which of the following is found in "chain-like" strings of coccus shaped bacteria?

a) streptococcus b) staphylococcus c) gonococcus d) diplococcus e) vibrio

Biology & Microbiology