Which of the following statements regarding the flow of genetic information is false?
A) Polypeptides form proteins that determine the appearance and function of the cell and organism.
B) Eukaryotic mRNA is processed in several ways before export out of the nucleus.
C) Transcription occurs in the cytoplasm of eukaryotic cells.
D) Ribosomes function as factories that coordinate the functioning of mRNA and tRNA.
Answer: C
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Which of the following is NOT a bird adaptation that facilitates flight?
A. hollow bones and air sacs B. bipedalism C. reduction in size of the breast muscles D. changes in the forearm bones E. feathers F. fused bones
Because so few bacteria can be grown easily in culture but all of them contain DNA, molecular techniques like PCR and SSU rRNA are used to be able to identify and quantify microorganisms as a "census" for diversity.
Answer the following statement true (T) or false (F)
Which of the following bacteria that inhabit the mouth is involved in plaque formation?
A. Streptococcus mutans B. Haemophilus spp. C. Streptococcus viridans D. Lactobacillus spp. E. Staphylococcus spp.
Imprinted genes are
A. not expressed. B. methylated and not replicated C. usually methylated and not expressed D. not replicated. E. usually methylated.