Biology, 16.11.2019 22:31, annikafischer
Wild-type bacteria can grow on minimal medium. four mutants that cannot grow on minimal medium but can grow on minimal medium supplemented with the nutrient ācā are isolated. it is suspected that metabolites a, b, and d are in the biochemical pathway for synthesis of c, so each mutant is tested for the ability to grow on minimal medium supplemented with these metabolites.
mutant 1: can grow on minimal medium supplemented with a, but not b or d
mutant 2: is unable to grow on minimal medium supplemented with a, b, or d
mutant 3: is able to grow on minimal medium supplemented with b or a, but not d
mutant 4: can grow on minimal medium supplemented with a, b, or d.
which of the following is not consistent with this information?
a. mutant 2 will cause a build up of metabolite d
b. mutant 1 will cause a build up of metabolite b
c. mutant 3 blocks the conversion of metabolite d ā metabolite b
d. mutant 2 blocks a step right before metabolite c.
e. mutant 4 blocks a step before all 4 metabolites.
Answers: 2
Biology, 21.06.2019 20:00, vannia
!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.
Answers: 1
Biology, 22.06.2019 04:00, Mw3spartan17
1) strawberry plants typically reproduce by making runners, which are miniature versions of themselves, that grow off of the roots and stems of the parent. this type of vegetative reproduction is known as a) pollination. b) fragmentation. c) binary fission. d) vegetative propogation.
Answers: 2
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