Small noncoding RNAs regulate gene expression in bacteria by ________
A) by both inhibiting and activating translation
B) activating translation
C) inhibiting translation
D) activating transcription
E) repressing transcription
Answer: A
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A doctor diagnosis a child with adrenoleukodystrophy (ALD) a disorder in which there is an accumulation of long fatty acid chains accumulating in the cells of the central nervous system. The issues arise with malfunctions in enzymes associated with which organelle?
A. Golgi bodies B. ribosomes C. vacuoles D. peroxisomes E. endoplasmic reticulum
The Pax6 gene
A. is a master control gene for eye development. B. codes for a protein that controls the expression of many other genes. C. mutant can cause aniridia in humans. D. is a homolog to the eyeless gene in Drosophila. E. All of the choices are correct.
Enzymes are important biological catalysts because they:a
supply the energy to initiate a biochemical reaction. b. increase the free energy of a biochemical reaction. c. lower the entropy of a biochemical reaction. d. decrease the enthalpy of a biochemical reaction. e. lower the activation energy of a biochemical reaction
Where are blood cells produced in humans?
a. in the heart b. in the lymph nodes c. in the bone marrow d. in the kidneys