Which of these will respond most strongly to red light?

a. S cones
b. L cones
c. M cones
d. rods


b. L cones

Biology & Microbiology

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The nitrogenous base that is only found in DNA and not in RNA is: rev: 02_22_2014_QC_45858

A. cytosine. B. uracil. C. adenine. D. thymine. E. guanine.

Biology & Microbiology

Dwarf plants are often short because they produce less gibberellin than taller varieties of the same species. What other scenarios might lead to dwarf plants? Choose all that apply.

_____ DELLA proteins that can't bind transcription factors as well. _____ GID proteins that can't bind gibberellin as well. _____ DELLA proteins that bind transcription factors more strongly than normal. _____ GID proteins that can't bind DELLA proteins as well.

Biology & Microbiology

Which cellular protein is found in tight junctions?

A) occludins B) tubulin C) connexons D) cadherins E) dynein

Biology & Microbiology

The scientist who elucidated the three-dimensional structure of hemoglobin is:

A) Max Perutz B) Linus Pauling C) Frederick Sanger D) Robert Corey E) John Kendrew

Biology & Microbiology