DNA Genes Allele

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Genetic traits are determined by one or more

• genes

• organelles

• random chances

• cells

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A version or variation of a gene

• trait

• gene

• allele

• DNA

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Long strands of DNA are wrapped into

• DNA

• Chromosome

• Alleles

• Phenotype

Chromosomes are made of

• DNA
• RNT
• WWE
• DMA

Tags

NGSS.HS-LS3-1

Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.

• 10, 20

• 25, 100

• 23, 46

• 46, 92

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains uracil

Tags

NGSS.HS-LS1-1

In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of _________.

• cytosine
• guanine
• thymine
• uracil

What determines the code, or information, of a DNA molecule?

• the shape (structure) of the nitrogen bases
• the order (sequence) of the nitrogen bases
• the color of the nitrogen bases
• the frequency (number) of nitrogen bases

Tags

NGSS.HS-LS1-1

The two strands of nitrogenous bases in DNA are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1