DNA Molecule

The steps to DNA Replication are

• Complementary bases are added, the parent molecule unwinds, and the bases are read

• The parent molecule unwinds, the bases are read, and complementary bases are added

• Bases are read, complementary bases are added, and the parent molecule unwinds

A nucleotide is

• a unit of DNA (phosphate, sugar, and base)

• a full double helix DNA molecule

• a strand or helix of a DNA molecule

Tags

NGSS.HS-LS1-1

What scientist was the first to photograph DNA's structure?

• Rosalind Franklin

• Francis Crick

• James Watson

The order of the bases along a gene is called

• protein synthesis

• base sequence

• DNA replication

The complementary base sequence for T-T-A-C-G is

• A-A-T-G-C

• C-G-T-A-A

• T-T-A-C-G

A mutation is

• DNA dividing

• DNA copying itself

• a change in the organism's genetic material

Tags

NGSS.HS-LS3-2

A mutation could be a change in the base sequence of a gene or a change in the chromosomes

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Composed of a sugar, a phosphate group, and one of four nitrogen bases

• heteroplasmic

• mitochondria

• Nucleotide

• Complementary bases

Answer explanation

Nucleotides are building blocks of DNA & RNA

Select the pairs that are nitrogen bases that make up DNA & RNA

• Adenine & Thymine

• Adenine & Cytosine

• Guanine & Cytosine

• Guanine & Thymine

Answer explanation

Nucleotides are building blocks of DNA & RNA

Variations in the DNA sequence due to the change of a single nitrogen base

• Single nucleotide polymorphism (SNPs)

• Adenosine triphosphate (ATP)

Answer explanation

SNPs is pronounced as "snips"

Tags

NGSS.HS-LS3-2