E. coli is a good model system for molecular biology studies because

a. it has a small genome.
b. it reproduces rapidly.
c. mutants can easily be isolated from culture dishes.
d. All of the above


Ans: d. All of the above

Biology & Microbiology

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In tropical water, the photic zone in the open ocean can extend down to:

a. 10 m. b. 20 m. c. 100 m. d. 200 m. e. 1000 m.

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The parasite Plasmodium reproduces in which cells of the human body?

a. brain b. digestive tract c. kidney d. red blood cells and liver e. white blood cells

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The ________ are endocrine cells that occur in small clusters in the pancreas

Fill in the blank(s) with correct word

Biology & Microbiology

However, due to continental drift and plate tectonics, most modern continents had formed by the end of the ______era.

What will be an ideal response?

Biology & Microbiology