10SCI Genetics and DNA Recap

True or false? All living things have DNA.

• true

• false

The sides of DNA contain

• Sugar and phosphate

• Sugar and base pairs

• Phosphate and base pairs

• DNA does not have any sides

The scientific name for the shape of DNA is

• Double

  Helix

• Twisted ladder

• Spiral shape

• Double spiral

Which of the following is NOT a nitrogen base in DNA?

• Adenine

• Glucose

• Cytosine

• Thymine

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

The smallest unit of DNA is called a...

The 3 parts that make up a nucleotide are:

What is a segment of DNA on a chromosome that codes for a trait?

• nucleotide

• gene

• RNA

• protein

A gene is a section of DNA that codes for...

• a protein which affects a characteristic

• a nucleotide

• a protein which affects a cytoplasm

• a phosphate

What are chromosomes made of?