If the mRNA base is uracil, the complementary base in translation is
A. thymine.
B. cytosine.
C. adenine.
D. uracil.
C. adenine.
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A trait with high heritability will:
A. respond quickly to artificial selection. B. respond quickly to natural selection. C. respond quickly to changes in the environment. D. respond quickly to both artificial selection and natural selection. E. respond quickly to artificial selection, natural selection, and changes in the environment.
What are the name of bacteria that are round with a thick wall?
A. Gram - bacilli B. Gram - cocci C. Gram + bacilli D. Gram + cocci
You attempt deletion mapping of a part of the promoter region of a particular gene. You remove a short sequence of nucleotides. Once the altered DNA is transfected into cells, the cells are able to transcribe the transfected DNA in a normal fashion. What do you conclude?
a) The deleted sequence has a moderate level of importance in promoting transcription. b) The sequence that was removed is not an essential part of the promoter. c) The sequence that was removed is an essential part of the promoter. d) The sequence that was deleted is an important determinant of the ability to transcribe the gene.
Why is bile a yellowish-green color?
A. It contains cholesterol. B. It contains pancreatic juices. C. It contains bilirubin. D. It contains chlorophyll. E. It contains biliverdin.