DNA and Replication

Which of the following best describes a DNA molecule's shape?

• double helix

• contains ribose

• made of amino acids

• contains Uracil

In the DNA, Adenine bonds with ______________.

• Guanine

• Thymine

• Cytosine

• Adenine

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

What is the correct complimentary strand for the following DNA? ATCGAG

• TACGAG

• ATCGAG

• TAGCTG

• TAGCTC

Name this structure

• double helix

• nucelotide

• twisted ladder

• hydrogen bond

Why is DNA important?

• It gives each cell instructions on how to do its job.

• It is what the cell membrane is made of.

• It helps the cell use water.

• It is food for the cell.

When does DNA Replication occur?

• metaphase

• Prophase

• The G1 phase of Interphase

• The S phase of Interphase

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• fatty acids
• nucleotides
• monosaccharides

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base

• sugar, oxygen, nitrogen base

• sugar, phosphate, nitrogen base

• sugar, phosphate, protein

DNA replication is considered semiconservative because it results in two DNA molecules...

• each one with two original strands

• each one with two new strands

• each one with one new strand and one original strand

• one with two new strands and the other with two original strands