DNA Unit

What is the function of DNA?

• To organize living things

• To store the genetic code

What organelle is DNA stored in?

• Endoplasmic Reticulum (ER)

• Golgi Apparatus

• Nucleus

• Mitochondria

Who discovered that DNA was structured as a double helix? (Select two answers)

• Thomas

• Watson

• Franklin

• Crick

Who contributed the first x-ray image of DNA, proving that DNA is spiraled?

• Hawthorne

• Crick

• Watson

• Franklin

DNA is made of ___ nucleotide strands held together.

• 2

• 3

• 4

• 5

What holds the 2 strands of nucleotides together?

• Peptide bonds

• Hydrogen bonds

• Covalent bonds

• Ionic bonds

Each nucleotide strand contains: (Select three answers)

• A nitrogenous base

• ATP

• A phosphate group

• Deoxyribose

• Ribose

DNA has a ______ strand; on the other hand, RNA has a ______ strand.

• double; double

• double; triple

• double; single

• single; single

How many nitrogenous bases (nucleotides) are there in DNA?

• 2

• 4

• 6

• 8

In DNA, Adenine pairs with _______ through a double hydrogen bond.

• Cytosine

• Guanine

• Adenine

• Thymine