Glycogen is a polysaccharide used for energy

storage by



a. plants.
b. animals.
c. protists.
d. bacteria.
e. archaea


B

Biology & Microbiology

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In the familial form of retinoblastoma, individuals who inherit one mutant allele of the RB1 gene have an 85% chance of developing retinoblastoma and other cancers. Explain why, when these individuals carry only one copy of the mutant gene, there is such a high incidence of cancer in these RB1 heterozygotes

What will be an ideal response?

Biology & Microbiology

DNA and RNA are similar in that both

a. contain the same sugar. b. are double-stranded molecules. c. contain nitrogenous bases. d. are in the form of a double-helix. e. are very long molecules.

Biology & Microbiology

In which of the following diseases does a virus

infect and kill motor neurons?

a. polio b. amyotrophic lateral sclerosis c. Duchenne muscular dystrophy d. multiple sclerosis e. fibromyalgia

Biology & Microbiology

Which of the following is true of the adrenal medulla?

1.It controls sodium and water reabsorption in kidneys. 2.It releases norepinephrine into the blood. 3.It secretes sex hormones. 4.It decreases cortisol level in the blood.

Biology & Microbiology