chapter 5 test L1-3 REVIEW -7th Grade )

Parents pass their traits to offspring through

• genes
• chromosomes
• genetic inheritance
• RNA

The shape of DNA is

• ladder
• circle
• staircase
• double helix

The edges or sides of DNA are made of

• sugar molecules
• nitrogen bases
• phosphate molecules
• double helix

Chromosomes are made of .....

• DNA
• proteins
• nitrogen bases

The order of the nitrogen bases in DNA form

• sugar molecules
• RNA
• genetic code
• traits

When creating DNA adenine is always paired with

• guanine
• thymine
• uracil
• cytosine

When creating DNA cytosine is always paired with

• adenine
• thymine
• uracil
• guanine

DNA is in all cells except

• white blood cells
• skin cells
• red blood cells
• liver cells

What contains the code that determines a protein's structure?

• gene
• daughter cell
• chromosome
• protein synthesis

What shape is RNA classified as?

• Double Helix
• Single Helix
• Ladder
• Triple Helix