What feature of genetic mutations can eventually lead to the evolution of new species?
A. Mutations always produce harmful effects.
B. Mutations never affect protein structure or function.
C. Mutations are not a mechanism through which biological evolution occurs.
D. Mutations always produce beneficial effects.
E. Mutations produce changes in the DNA sequence of a gene.
E. Mutations produce changes in the DNA sequence of a gene.
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Over the last two decades the incidence of multiple
births has a. increased in frequency by 60%. b. decreased in frequency by10%. c. remained relatively constant. d. decreased the number of adoptions. e. done none of these.
What are the similarities between anorexia and bulimia?
What will be an ideal response?
Transcription is the process of
A) synthesizing a DNA molecule from an RNA template. B) assembling an RNA molecule without a template. C) replicating a single-stranded DNA molecule. D) synthesizing a protein using information from mRNA. E) synthesizing an RNA molecule using a DNA template.
Common signs and symptoms of ulcerative colitis include all of the following, EXCEPT:
A) pus or blood in the stools. B) recurrent abdominal pain. C) bloating after milk ingestion. D) fever, chills, and diarrhea.