Which molecules initially capture the energy of light and turn it into high energy electrons
Answer: Chlorophyll
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Which of the following is least important for the binding of a protein to single-stranded DNA?
A. hydrophobic interactions between guanine and tyrosine B. hydrophobic interactions between adenine and phenylalanine C. attraction between phosphate groups and lysine D. attraction between phosphate groups and arginine E. hydrogen bonding between deoxyribose and tyrosine
Most phyla of aquatic invertebrates have improved the rate of gas exchange by creating a water current over their respiratory surfaces, thereby _____.
A. changing the diffusion constant B. increasing the surface area for diffusion C. decreasing the distance for diffusion D. increasing the concentration difference
In the cross Cc ´ Cc, gametes have a ____ chance of receiving either allele
a. 25-75 b. 50-50 c. 75-25 d. 60-40 e. 90-10
Pasteurization is a method used for
a. cloning b. prevent global warning c. vaccination purpose d. kill microorganisms in food