A naked virus consists of nucleic acid surrounded by a capsid

a. True
b. False


Ans: a. True

Biology & Microbiology

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Four of the following statements about turtles are true. Which statement is false?

a. About 300 species of turtles currently exist. b. Turtles do not have teeth. c. Turtle shells are enlarged in marine forms. d. Turtles must return to land to lay eggs. e. Most sea turtle species are highly endangered.

Biology & Microbiology

How does smooth muscle differ from skeletal muscle?

a. Smooth muscle attaches to bones via tendons. b. Smooth muscle has a striated appearance. c. Smooth muscle undergoes quick contractions. d. Smooth muscles are connected via gap junctions. e. Smooth muscle cross bridges form transiently.

Biology & Microbiology

How is fermentation of lactose detected?

a. The medium become turbid when exposed to air. b. The acetoin produced turns the medium pink. c. The drop in pH turns the indicator dye yellow. d. The cells form a black precipitant.

Biology & Microbiology

How can you determine the genotype of a plant showing the dominant phenotype of red color?

A. The phenotype reflects the genotype, so the plant must be homozygous for the trait. B. Cross the red plant with a white plant to see if any white plants appear. C. Cross the red plant with other red plants to see if any white plants appear. D. Cross the red plant with a white plant to see how many red plants appear. E. Cross the red plant with another red plant, and then cross the F1 population with each other to see if any white plants appear.

Biology & Microbiology