The tip of an actively lengthening shoot is called a ____
a. flower stalk
b. shoot cap
c. lateral meristem
d. terminal bud
e. lateral bud
ANSWER: d
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Which of the following organelles has its own
DNA and ribosomes?
a. chloroplasts b. rough endoplasmic reticulum c. smooth endoplasmic reticulum d. lysosomes e. none of these organelles has its own DNA and ribosomes
Which membrane reduces friction in joints?
a. serous b. cutaneous c. mucous d. synovial e. tissue
Which of the following can be mutated to result in constitutive expression from the lac operon?
A) lacZ and lacP B) lacZ and lacI C) lacO and lacI D) lacO and lacZ E) lacI and lacY
In conjugation, F+ cells
A) serve as recipient cells. B) contain an F plasmid. C) do not have conjugation pili. D) can transfer DNA only to other F+ cells. E) contain "jumping genes."