The accompanying figure is a photomicrograph of ____
a. a nucleus
b. a Golgi body
c. endoplasmic reticulum
d. a vacuole
e. a nucleoid
ANSWER: a
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Which of the following are added to a single-stranded DNA in order to perform a successful
sequencing reaction?
a. a mixture of the four dideoxyribonucleotides, each with a different fluorescent label b. a DNA primer c. a mixture of the four deoxyribonucleotides d. a DNA polymerase e. all of these
Which of the following is mismatched?
a. cytokinin; retards aging b. auxin; promotes cell elongation c. gibberellin; involved in phototropism and gravitropism d. abscisic acid; promotes stomatal closure e. ethylene; promotes leaf abscission
Restriction endonucleases typically recognize palindromic DNA sequences and often generate "sticky ends" or single-stranded DNA overhangs at cut sites
Indicate whether the statement is true or false
Which of these is an INCORRECT matching of causative agent and disease?
a. Yersinia pestis: plague b. Salmonella: food poisoning c. Brucella: yellow fever d. Clostridium: gas gangrene