DNA Introduction

What is the basic unit of DNA?

• amino acid
• protein
• nucleotide
• sugar

If a portion of one side of a DNA molecule has the base sequence GATCAC. What is the sequence of bases on the complementary side?

• GATCAC

• CUAGUG

• CTACAC

• CTAGTG

What is this?

• A karyotype

• A pedigree

• A chromatotype

• A Punnett Square

What gender has an X and a Y chromosome?

• male
• female
• transgender 
• all of the above

Which of the following best describes a DNA molecule?

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

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

• cytosine
• guanine
• thymine
• uracil

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base
• Phosphate, Adenine, nitrogen base
• Thymine, Adenine, Cytomine
• Phosphate, Nitrogen, Adenine

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

Identify #2.

• nitrogen base
• phosphate group
• deoxyribose sugar
• nucleotide