What type of bond links two polynucleotide chains to each other in a double helix DNA?

A.) glycosidic bond
B.) hydrogen
C.) phosphodiester
D.) phosphoanhydride
E.) disulfide


Ans: B.) hydrogen

Biology & Microbiology

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Indicate whether the statement is true or false.

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Water and nutrients that have been filtered from the glomerular filtrate are returned to circulation as they enter the

A) renal artery. B) vasa recta. C) efferent arteriole. D) peritubular capillaries. E) vasa recta and peritubular capillaries.

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Which hormone stimulates both leaf abscission and fruit ripening?

a. abscisic acid b. auxin c. cytokinin d. ethylene e. gibberellin

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