Which of the following defines genetic diversity?

a. the variety of alleles in a species or ecosystem
b. the number of living species currently identified
c. the variety of metabolic compounds in an ecosystem
d. the number of prokaryotic species in a genus


a. the variety of alleles in a species or ecosystem

Biology & Microbiology

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In a particular E. coli strain, a mutation in the thiMD operon results in improper formation of the stem loop secondary structure making it impossible to bind TPP. There are two enzymes encoded by the thiMD operon

How many of the enzymes encoded in the thiMD operon are translated? A. two B. zero C. three D. one

Biology & Microbiology

Describe the breeding program initiated by King Frederick William of Prussia in the early 1700s to supply tall soldiers to the Potsdam Grenadier Guard. Was it successful? Why or why not?

What will be an ideal response?

Biology & Microbiology

The adrenal glands are found at the top of the

A. ovaries. B. pancreas. C. kidneys. D. thyroid gland. E. liver.

Biology & Microbiology

Which pair best represents photosynthetic organisms?

a. primary producer and autotroph b. primary consumer and autotroph c. primary producer and heterotroph d. primary consumer and heterotroph e. primary producer and saprotroph

Biology & Microbiology