DNA Structure and Replication

Front

Which of the following best describes a DNA molecule? Options: double helix, contains ribose, made of amino acids, contains Uracil

Back

double helix

Front

Which units are repeatedly joined to form a strand of DNA? Options: amino acids, nucleotides, fatty acids, polysaccharides

Back

nucleotides

Front

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of: cytosine, guanine, thymine, uracil

Back

thymine

Front

Adenine bonds with ______________.

Back

Thymine

Front

Guanine bonds with ______________.

Back

Cytosine

Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

Front

Which 2 molecules form the sides (backbone) of the DNA ladder? Options: deoxyribose sugar and adenine, deoxyribose sugar and a hydrogen bond, deoxyribose sugar and the nucleus, deoxyribose sugar and phosphate

Back

deoxyribose sugar and phosphate

Front

Which organelle is DNA usually found in? Options: cell membrane, vacuole, chloroplast, nucleus

Back

nucleus

Front

Nitrogenous bases are joined by which type of bond? Options: polar bonds, ionic bonds, covalent bonds, hydrogen bonds

Back

hydrogen bonds

Front

Replicate the following strand of DNA by selecting the complementary base pairs:

AATCATGGA

Back

TTAGTACCT