Viruses can redirect host metabolic functions

Indicate whether the statement is true or false.


Answer: TRUE

Biology & Microbiology

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Which of these statements INCORRECTLY describes an example of pleiotropy?

A. A mutation in a Cl-transport protein causes infertility and excessive mucus in the lungs. B. A mutation in a gene for microtubule formation causes a defect in sperm motility and cilia movement in the respiratory tract. C. A mutation in a lipid metabolism gene leads to a buildup of lipids in cells, causing blindness and paralysis. D. A mutation in the phenylalanine hydroxylase gene can cause mental retardation and loss of motor skills. E. A mutation in one allele for phenylalanine hydroxylase results in lower levels of this enzyme in the blood, which causes high blood levels of phenylalanine.

Biology & Microbiology

When molt-inhibiting hormone is prevented from being secreted

a. ecdysone levels increase. b. ecdysone levels decrease. c. molting is inhibited. d. growth is inhibited. e. growth is stimulated.

Biology & Microbiology

If cells in the process of dividing are subjected to colchicine, a drug that interferes with the formation of the spindle apparatus, at which stage will mitosis be arrested?

A) anaphase B) prophase C) telophase D) metaphase E) interphase

Biology & Microbiology

Which force pushes water into the xylem as osmosis moves water into the root?

A. guttation B. root pressure C. atmospheric pressure D. transpiration E. water stress

Biology & Microbiology