Which DNA binding motif does lambda repressor have?
a. zinc finger
b. helix-loop-helix
c. leucine zipper
d. helix-turn-helix
e. None of the above.
Ans: d
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The discharge of high levels of microbial nutrients into marine environments has
A. had negative impacts on shellfish and other bottom-dwelling marine animals. B. resulted in the production of large hypoxic or anoxic regions. C. resulted in algal blooms and red tides that have killed marine mammals. D. All of the choices are correct.
Which domain of life contains the most multicellular organisms?
A. Archaea. B. Bacteria. C. Prokarya. D. Eukarya. E. microorganisms.
________ are modified leaves that are often green and surround the flower bud
A) Stigma B) Filaments C) Ovules D) Petals E) Sepals
Apicomplexans reproduce asexually by (mitosis/schizogony/fission).
Fill in the blank(s) with the appropriate word(s).