Chlamydomonas, although a green algae, is sensitive to an antibiotic, erythromycin
If mt– mating-type alga that is sensitive is mated with an mt+ cell that is resistant, and if the mt+ strain donates chloroplasts, what results do you expect and why? A) All progeny are sensitive because sensitivity is the dominant trait.
B) Approximately half the progeny are sensitive because this is the recessive trait.
C) All the progeny are sensitive because this is the recessive trait.
D) All progeny are resistant because cpDNA is responsible.
E) Approximately half the progeny are sensitive because cpDNA is responsible.
D
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Which naturalist first proposed the theory of
catastrophism?
a. Lyell b. Lamarck c. Darwin d. Cuvier e. Aristotle
When you hold your breath, which of the following blood gas changes leads initially to the urge to breathe again?
A) rising carbon monoxide level B) rising carbon dioxide level C) falling carbon monoxide level D) rising carbon dioxide level and falling carbon monoxide level
Which of the following methods could be used to differentiate between a member of domain Bacteria and a member of domain Archaea?
a. You could look for the presence of mitochondria. b. You could see if the organism produces rRNA. c. You could see if the organism can survive in an extreme environment. d. You could look for the presence of peptidoglycan. e. All of the above would work. f. None of the above would work.
In the sodium-potassium pump, sodium and potassium are both pumped out of the cell via active transport.
Answer the following statement true (T) or false (F)