DNA Replication

Which of the following is required for DNA replication to occur?

-DNA helicase -DNA ligase -DNA polymerase

If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?

20

DNA Polymerase can only READ DNA ___________; and can only BUILD/ADD DNA ______________.

3' to 5' . 5' to 3'

Direction that DNA is READ?

5' to 3'

Direction that DNA is replicated

5' to 3'

Does A, B, or C represent the way DNA replicates?

A

The separation of the two single strands of DNA creates a 'Y' shape?

A replication fork

Letter B represents the

DNA Ligase

Which of the following must happen first in order for DNA replication to occur?

DNA is unwound

Letter D represents the

DNA polymerase working continuously

Describes the twisted ladder-like shape of a DNA molecule

Double Helix

DNA replication results in two DNA molecules,

Each one with one new strand and one original strand.

This structure is an Okazaki fragment.

F

The enzyme _____ unzips the DNA strand during Replication.

Helicase

Which of the following sequences expresses the correct order of enzyme function in DNA replication?

Helicase---DNA polymerase--ligase

What strand is copied faster?

Leading

The enzyme ________ adds on the free nucleotides to the leading strand during DNA Replication

Polymerase

A process in which DNA has the unique ability to make an exact copy of itself.

Replication

Which sequence of DNA bases would pair with this partial strand ATG TGA CAG?

TAC ACT GTC

What are the 4 nitrogen bases?

adenine, thymine cytosine, and guanine

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

deoxyribose sugar and phosphate

Which choice represents the correct order of organization from smallest to largest?

gene, chromosome, cell, organism

Nitrogenous bases are joined by which type of bond?

hydrogen bonds

Why is DNA important?

it serves as the blueprint for traits of all living things

Letter E represents the

lagging strand

Okazaki fragments form on the:

lagging strand

Name this structure w/ Deoxyribose sugar, base, and a phosphate

nucelotide

Which organelle is DNA usually found in?

nucleus

What are the three components of a nucleotide?

sugar, phosphate, nitrogen base

What determines the code, or information, of a DNA molecule?

the order (sequence) of the nitrogen bases