The two strands of a DNA double helix are held to each other by ____ bonds between nitrogenous

bases.



a. phosphodiester
b. disulfide
c. glycosidic
d. hydrogen
e. peptide


D

Biology & Microbiology

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The process of moving water through a plant by transpiration works because water molecules stick to each other with  

A.  turgor pressure. B.  osmosis. C.  ionic bonds. D.  adhesion. E.  hydrogen bonds.

Biology & Microbiology

The process by which homologous chromosomes exchange genetic material

A. is crossing-over. B. occurs only during DNA replication. C. is independent assortment. D. is random fertilization. E. occurs only in animals.

Biology & Microbiology

RoundUp-resistant plants are designed to ________

A) improve nutritional value of crops B) make crops heat-resistant C) make crops cold-resistant D) increase vitamin B content E) provide resistance against herbicides

Biology & Microbiology

One centimeter = ________ millimeters

A) 0.01 B) 0.10 C) 10 D) 100

Biology & Microbiology