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DNA Lesson

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

The four bases of DNA are

a)

Thymine, Adenine, Cortisol, and Medinine

b)

Thymine, Guanine, Adenine, and Cytosine

c)

Cytosine, Adenine, Medinine, and Thymine

d)

Adenine, Guanine, Cortisol, and Medinine

2.

Adenine is always paired with _______________________

a)

Thymine

b)

Cytosine

c)

Guanine

d)

It doesn't match with anything

3.

The shape of DNA looks like a twisted ladder, known as

a)

helicase

b)

a double helix

c)

a triple helix

4.

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

a)

Replication

b)

Translation

c)

Transcription

d)

Protein Synthesis

5.

Which biomolecule is made of nucleotides and contain your DNA?

a)

Carbohydrate

b)

Lipids

c)

Protein

d)

Nucleic Acid

6.

Which biomolecule is made of nucleotides and contain you DNA?

a)

Carbohydrate

b)

Lipids

c)

Protein

d)

Nucleic Acid

7.

Which of the following biomolecule has the function of creating our DNA?

a)

Carbohydrates

b)

Lipids

c)

Protein

d)

Nucleic acids

8.

order of replication

a)

3, 2, 1, 4

b)

2, 1, 4, 3

c)

2, 3, 1, 4

d)

3, 4, 1, 2

9.

What does DNA stand for?

a)

Deoxyribonucleic acid

b)

Denitrogenous acid

c)

Deribonucleic acid

d)

Diribonucleic acid

10.

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

a)

cytosine

b)

guanine

c)

thymine

d)

uracil

11.

What do organisms have in common?

a)

DNA sequence made of A,C,T,G

b)

DNA sequence is in the same order

c)

DNA sequence between organisms have nothing in common

d)

DNA sequence made of A,U,C,T,G

12.

What is the molecule in the image?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

13.

DNA codes for...

a)

bases

b)

proteins

c)

amino acids

d)

phosphates

14.

Cystosine is always paired with ______________.

a)

Adenine

b)

Thymine

c)

Guanine

d)

It doesn't match with anything

15.

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

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

16.

What is "A"?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

17.

What is "C"?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

18.

What makes up the SIDES of a DNA ladder?

a)

nitrogenous bases

b)

sugars & phosphates

c)

genes & chromosomes

d)

RNA

19.

What makes up the rungs (steps) of a DNA ladder?

a)

sugars & phosphates

b)

nitrogenous bases

c)

sugars

d)

genes & chromosomes

20.

What SHAPE is DNA?

a)

single strand

b)

straight ladder

c)

double helix (twisted ladder)

d)

DNA has no shape

21.

What is the primary function of DNA in cells?

a)

To store genetic information

b)

To provide energy

c)

To transport nutrients

d)

To protect the cell

22.

Which of the following is a component of a nucleotide in DNA?

a)

Amino acid

b)

Fatty acid

c)

Phosphate group

d)

Glucose

23.

During DNA replication, which enzyme is responsible for unwinding the DNA double helix?

a)

DNA polymerase

b)

Helicase

c)

Ligase

d)

Primase

24.

In a DNA molecule, the sequence of bases determines the sequence of which of the following?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Vitamins

25.

Which of the following best describes the process of transcription in relation to DNA?

a)

Copying DNA to RNA

b)

Copying RNA to DNA

c)

Synthesizing proteins from DNA

d)

Breaking down DNA into nucleotides