If one is testing a goodness of fit to a 9:3:3:1 ratio, how many degrees of freedom would be associated with the Chi-square analysis?

A) 1 B) 2 C) 3 D) 4 E) 5


Answer: C

Biology & Microbiology

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DNA is favored as the storage molecule of genetic information because it ____ than RNA

a. has more nucleotides b. has greater chemical stability c. can assemble into longer coding sequences d. has more nucleotides and greater chemical stability e. has greater chemical stability and can assemble into longer coding sequences

Biology & Microbiology

In which stage do chromosomes align at the equator?

What will be an ideal response?

Biology & Microbiology

Segments of DNA that increase the rate of transcription of certain genes are known as ________

A) enhancers B) polymerases C) short tandem repeats D) introns

Biology & Microbiology

Starch is used to store energy and cellulose is a structural polysaccharide. The key differences that explain these functions are

A. cellulose with high branching aids strong structures, and starch with low branching makes for easy energy release. B. alpha 1-4 and alpha 1-6 glycosidic linkage in starch creates branching, and beta 1-4 in cellulose creates unbranched structures. C. the unbranched structure of starch makes it easy to process for energy, and the branched structure in cellulose creates strong bonds.  D. beta 1-4 and alpha 1-6 glycosidic linkage of starch can create branches, and alpha 1-4 linkages in cellulose creates cellulose.

Biology & Microbiology