What kind of bond is formed between nucleotides in a polynucleotide such as DNA or RNA?
a. hydrogen
b. glycosidic
c. phosphodiester
d. glucagon
c. phosphodiester
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A nasal spray for cystic fibrosis patients, which contains adenovirus particles carrying a normal human CFTR gene, is an example of
A) ex vivo gene therapy. B) in situ gene therapy. C) in vitro gene therapy. D) in vivo gene therapy.
Which organ in the human digestive system contains an oblique layer of muscle as a part of its
muscularis?
a. esophagus b. large intestine c. liver d. small intestine e. stomach
If a scientist is studying the heritability of IQ, which people would show the highest correlation between their IQ scores?
A) two unrelated children B) a child and his mother C) monozygotic twins D) dizygotic twins
Which of the following structure contains the cells genetic material ?
a. cytoplasm b. nucleus c. mitochondria