In a DNA double helix, what kind of chemical bonds form between the complementary nitrogenous bases?

A) polar covalent bonds
B) phosphodiester bonds
C) nitrogen bonds
D) hydrogen bonds


Ans: D) hydrogen bonds

Biology & Microbiology

You might also like to view...

What is ELSI?

What will be an ideal response?

Biology & Microbiology

Enzymes belong to which group of organic molecules? 

A. carbohydrates B. lipids C. nucleic acids D. proteins

Biology & Microbiology

Which physiological group of bacteria is a subset of the other?

a. Acetic acid bacteria are a subset of acetogens. b. Acetogens are a subset of acetic acid bacteria. c. Methylotrophs are a subset of methanotrophs. d. Methanotrophs are a subset of methylotrophs.

Biology & Microbiology

I'm a botanist looking for new species of C4 plants. Where should I focus my search?

a. Maine b. Quebec, Canada c. equatorial rainforest d. The Everglades (in Florida) e. Arizona

Biology & Microbiology