DNA structure and function

Which of the following describes the shape of DNA?

• SIngle Helix

• Double staircase

• Double helix

• Single ladder

Which scientist discovered the structure of DNA by taking an x ray?

• James Watson
• Rosalind Franklin
• Gregor Mendel

• Francis Crick

Which of the following is not a nucleotide base?

• Adenine
• Glucose
• Cytosine
• Thymine

How do the nucleotide bases pair together?

• A pairs with C, and T pairs with G.
• G pairs with T, and A pairs with C.
• C pairs with A, and T pairs with G.
• A pairs with T, and C pairs with G.

Match the following nucleotide bases with the correct pairs.

ATCCGATAC

• TAGGCTAGT
• TAGGCTATG
• CGATCGTAC
• ATCCGATAC

Match the following nucleotide bases with the correct pairs.

GCGTATTAG

• CGCATAATC

• GCGTATTAG

• CGCTATTAG

• TAGCATTAT

DNA replication is the process of...

• the process of altering damaged DNA strands.

• the process of creating two new different DNA strands

• the process of copying DNA to produce two identical DNA molecules.
• the process of translating DNA into proteins.

Label the nucleotide

a

b

c

Nitrogenous base

Sugar

Phosphate

Tags

NGSS.HS-LS1-1

What kind of bonds hold the nucleotide bases together?

• Ionic bonds
• Covalent bonds
• Nitrogen bonds

• Hydrogen bonds

These are complex proteins that speed up chemical reactions by lowering the amount of energy needed to get the reaction started. ​ (a)  

• Enzymes
• Genes
• Replicators
• Major Facilitating Agents
• RNA
• DNA