Science Quiz: DNA

19 Questions | By Kewlsportsgirl | Updated: Mar 21, 2022 | Attempts: 2342

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This quiz is mainly about DNA molecules and how they connect and read information into the cell.

Questions and Answers

1.

What is the actual shape of the DNA molecule?
- A.
  
  Spiral
- B.
  
  Twisted Circle
- C.
  
  Square
- D.
  
  Double helix
Correct Answer
D. Double helix
2.

Who are the two scientists who shared the Nobel prize for their work on this molecule.
- A.
  
  James Watson and Francis Crick
- B.
  
  James Watson and Joe Alexandra
- C.
  
  James Williams and Francis Crick
- D.
  
  James Williams and Francis Martin
Correct Answer
A. James Watson and Francis Crick
3.

What is the process in which a DNA copies itself??

Correct Answer
Replication
Replacation
Repliciation
4.

What Nitrogen Bases always bond together?
- A.
  
  A&C and T&G
- B.
  
  C&G and A&S
- C.
  
  A&T and G&C
- D.
  
  C&F and G&C
Correct Answer
C. A&T and G&C
5.

What are the four Nitrogen Bases??

Correct Answer
Adenine, Thymine, Guanine, Cytosine
Adanine, Thymine, Ganine, Cytosine
6.

What are the subunits in DNA called?

Correct Answer
nucleotides
7.

In your own words, give a brief definition of Deoxyribonucleic acid (DNA).
8.

What are the 3 components in a nucleotide?

Correct Answer
5 carbon sugar, Phosphate group, and Nitrogen base.
five carbon sugar, phosphate group and nitrogen base.
9.

True or False........ Every human being has a unique set of DNA.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False
10.

In one human cell there are ___ nucleotides.

Correct Answer
5 billion
five billion
11.

The sequence of nucleotides is the code that controls the production of all______in an organism. Fill in the blank.
- A.
  
  Proteins
- B.
  
  DNA
- C.
  
  Ribosomes
- D.
  
  Nitrogen Bases
Correct Answer
A. Proteins
12.

What part of the animal OR plant cell is the DNA found in?
- A.
  
  Golgi Body
- B.
  
  Cytoplasm
- C.
  
  Cell Membrane
- D.
  
  Nucleus
Correct Answer
D. Nucleus
13.

Why does the DNA of a bacteria float around inside the cell, rather than be confirmed in a nucleus?
- A.
  
  The bacteria can't detect the DNA's info.
- B.
  
  Bacteria does not have a nucleus.
- C.
  
  It is not small enough to fit inside bacteria.
Correct Answer
B. Bacteria does not have a nucleus.
14.

How many hours does it take to replicate a DNA molecule in a human cell?
- A.
  
  6 hours.
- B.
  
  10 minutes.
- C.
  
  A week.
- D.
  
  7 1/2 hours.
Correct Answer
A. 6 hours.
15.

The first step of the DNA replication is the DNA __________

Correct Answer
unzips
breaks
break up
16.

What is step one also called?
- A.
  
  Polymerase
- B.
  
  Phosphate
- C.
  
  Helicase
- D.
  
  Nitrogen
Correct Answer
C. Helicase
17.

What is the second step?

Correct Answer
meet someone new
bonding of nitrogen base pairs
nitrogen pairs coming together
18.

What is the third step in the Replication process?
- A.
  
  Breaks apart again. (Polymerase)
- B.
  
  True Love (Helicase)
- C.
  
  Sugar bonds (Polymerase)
- D.
  
  They reproduce. (Phosphate)
Correct Answer
C. Sugar bonds (Polymerase)
19.

Is Nicole AWESOME????
- A.
  
  Yes
- B.
  
  Yes
- C.
  
  Yes
- D.
  
  Yes
- E.
  
  Yes
Correct Answer(s)
A. Yes
B. Yes
C. Yes
D. Yes
E. Yes

Explanation
Very easy question.sfjsdlfkjdfs

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Current Version
Mar 21, 2022

Quiz Edited by
ProProfs Editorial Team
Nov 11, 2009

Quiz Created by
Kewlsportsgirl

Science Quiz: DNA

What is the actual shape of the DNA molecule?

Who are the two scientists who shared the Nobel prize for their work on this molecule.

What is the process in which a DNA copies itself??

What Nitrogen Bases always bond together?

What are the four Nitrogen Bases??

What are the subunits in DNA called?

In your own words, give a brief definition of Deoxyribonucleic acid (DNA).

What are the 3 components in a nucleotide?

True or False........ Every human being has a unique set of DNA.

In one human cell there are ___ nucleotides.

The sequence of nucleotides is the code that controls the production of all______in an organism. Fill in the blank.

What part of the animal OR plant cell is the DNA found in?

Why does the DNA of a bacteria float around inside the cell, rather than be confirmed in a nucleus?

How many hours does it take to replicate a DNA molecule in a human cell?

The first step of the DNA replication is the DNA __________

What is step one also called?

What is the second step?

What is the third step in the Replication process?

Is Nicole AWESOME????