What wavelength of light in the figure is most effective in driving photosynthesis?
A) 420 mm
B) 475 mm
C) 575 mm
D) 625 mm
E) 730 mm
Answer: A
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Which of the following serves as the "translator" or intermediary between an mRNA codon and an amino acid?
A. rRNA B. snRNA C. tRNA D. siRNA E. snRNPs
What assumption is made by researchers when designing experiments to model how life may have arisen on Earth?
a. The chemical reactions of living things are only possible inside living systems. b. Living organisms are composed of elements commonly found on Earth, but absent in the rest of the universe. c. Conditions on Earth have not changed over time. d. Life arose on Earth from non-living matter. e. The development of living cells from nonliving matter was very rapid.
Which of the following statements is true?
a. In carriers, the recessive allele causes an intermediate phenotype. b. With recessive genetic disorders, if both parents are carriers, the offspring will all be affected. c. In recessive genetic disorders, the mother and/or father of an affected individual must also be affected. d. With dominant genetic disorders, the mother and/or father of an affected individual must also be affected. e. The dominant allele is masked in homozygous dominant individuals.
Which of the following is associated with extracellular digestion caused by release of the lysosomes enzymes into the environment?
A) Tay-Sachs disease B) rheumatoid arthritis C) autophagy D) Hunter syndrome E) Hurler syndrome