How many different types of bases are used to encode all the genetic information in a molecule of DNA?
A) 20
B) 4
C) 2
D) 5
E) 10
Answer: B) 4
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Yeast cells grown in a nutrient-rich medium and then shifted to a medium lacking essential amino acids rapidlyreduce their level of splicing of transcripts for:
A. iron response genes. B. mating factor genes. C. AU-rich elements. D. ribosomal protein genes.
A person is most likely to recover from a viral infection if the infected cells _____
A) can undergo normal cell division B) can carry on translation, at least for a few hours C) produce and release viral protein D) transcribe viral mRNA
The accumulation of glucose inside a bacterial cell via phosphorylation of the molecule is an example of
A. Osmosis B. Signal transduction C. Facilitated diffusion D. Group translocation E. Simple diffusion
Human population growth poses a threat to sustainable development
Indicate whether the statement is true or false