Answer the question using the accompanying figure. What does letter E represent?

a. different RNA molecules transcribed from a coding region of DNA
b. the products of a PCR reaction in which the primers annealed to multiple sites
c. the products of a PCR reaction performed without one of the nucleoside triphosphates
d. the products of a PCR reaction that had more than two primers
e. a DNA marker ladder


ANSWER: e

Biology & Microbiology

You might also like to view...

The function of heart valves is to ____

a. form blood cells b. participate in immunity c. prevent backflow of blood d. prevent clot formation e. push blood into the aorta

Biology & Microbiology

Which one of the following characteristics is NOT true for all living cells?

a. All cells are derived from preexisting cells. b. All cells contain a nucleus. c. All cells utilize organic fuel molecules as energy sources for their activities. d. All cells respond to outside stimulation. e. All cells possess a plasma membrane.

Biology & Microbiology

Some plants fail to produce chlorophyll, and this trait appears to be recessive. Many plants also self-pollinate. If we locate a pea plant that is heterozygous for this trait, self-pollinate it and harvest seeds, what are the likely phenotypes of these seeds when they germinate?

A. All will be white and lack chlorophyll. B. About one-fourth will be green and three-fourths white. C. About one-half will be green and one-half white. D. About one-fourth will be white and three-fourths green. E. All will be green with chlorophyll.

Biology & Microbiology

The blood vessels of the umbilical cord are derived from which one of the following structures?

A) allantois B) chorion C) embryonic disk D) amnion E) yolk sac

Biology & Microbiology