The earliest type of eukaryotic organism currently known is a type of ____

a. virus
b. bacterium
c. alga
d. animal-like protist
e. fungus


ANSWER: c

Biology & Microbiology

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Steroid hormones bind to receptors in the nucleus to activate or deactivate genes.

a. true b. false

Biology & Microbiology

If parents with genotypes Gg have one child with a recessive genetic disorder, gg, what is the chance that their second child will develop the genetic disorder?

A. 15% B. 25% C. 45% D. 35%

Biology & Microbiology

It became apparent to Watson and Crick after completing their model that a DNA molecule could carry a vast amount of hereditary information in its

A) side groups of bases.
B) variety of phosphate groups.
C) sequence of bases.
D) phosphate-sugar backbone.
E) different five-carbon sugars.

Biology & Microbiology

Suppose you estimate the following regression of a firm's Sales and number of employees at each location across the country: Sales = 95,342 + 0.76 Number of Employees. You are willing to believe you have a random sample of store locations, and a sufficiently large sample size. Which statements are not yet justified by the regression results?

A. On average a store with 100 employees is likely to have Sales of about = 95,342 + 0.76(100) = 95,418 B. Increasing the number of employees at a store by 2 will raise sales by 0.76 × 2 = 1.52 C. On average, stores with more sales have more employees. D. None of the answers is correct.

Biology & Microbiology