Which of these is not a type of noncoding human DNA?
A. repeated sequences
B. multigene families
C. structural DNA
D. highly condensed DNA close to centromeres and telomeres
Answer: B
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Answer the following statements true (T) or false (F)
1. Viral genomes must always be excised from the bacterial chromosome before viral components can be produced. 2. Viruses infect only eukaryotes. 3. To fit into the nucleiod region, a bacterial chromosome is tightly wrapped around histone proteins. 4. Plasmids replicate independently of the bacterial chromosome
Most of the tallgrass prairies have been converted ____
a. to grazing lands b. for citrus production c. to homesteads d. to croplands e. to vineyards
Hydrogen bonding is most important in stabilizing the ________ structure of many proteins
A) primary B) secondary C) tertiary D) quaternary E) primary, secondary, tertiary, and quaternary
A drug called ouabain specifically inhibits the sodium-potassium pump present in neuron cells. Over time, what would this action of ouabain cause?
A) the inside of the neuron to become more negative B) repolarization C) elimination of a concentration gradient D) more potassium to be transported into the neuron