Quiz: DNA Structure

Last updated 4 months ago

10 questions

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Quiz: DNA Structure

Last updated 4 months ago

10 questions

Required

1

Draggable item		Corresponding Item

Required

1

Draggable item		Corresponding Item

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Match the DNA base with its complementary partner in the DNA strand.

Draggable item		Corresponding Item
Guanine (G)		Thymine (T)
Cytosine (C)		Cytosine (C)
Adenine (A)		Guanine (G)

Associate the following genetic components with their respective intricate descriptions.

Draggable item		Corresponding Item
Nucleotide		Five-carbon sugar in DNA
Deoxyribose		Structure of DNA resembling a twisted ladder
Double Helix		Consists of sugar, phosphate, and a nitrogen base

What is the primary building block of a DNA molecule?

Phosphate

Nucleotide

Amino acid

Sugar

Which of the following nitrogenous bases is NOT found in DNA?

Adenine

Thymine

cytosine

Uracil

What is the long name for DNA?

denatured ribonucleic acid

deoxoribonuclear acid

deoxynucleic acid

deoxyribonucleic acid

The "rungs" of the DNA ladder are made of:

glucose and sugars

base pairs and hydrogen bonds

phosphates and hydrogen bonds

sugars and phosphates

DNA molecules differ from RNA molecules in which of the following ways?
I. DNA molecules contain a different type of pentose sugar than do RNA molecules.
II. DNA molecules contain the nitrogenous base cytosine while RNA molecules do not.
III. RNA molecules contain the nitrogenous base uracil while DNA molecules do not.

 I and III only

I, II, and III

II and III only

I and II only

What type of bond holds the complementary base pairs together in a DNA molecule?

Ionic bond

covalent bond

Peptide bond

Hydrogen bond

RNA differs from DNA in that:

it is single stranded

it has uracil

all of these

it has a different kind of sugar

The above diagram illustrates what DNA looks like when it is twisted into the double helix. Three parts of the molecule are labeled: The backbone/sides (A), the "rungs" (B) and the end (C). Predict which part of the molecule you will find phosphorous.

C

A

A and B

B

Match the DNA base with its complementary partner in the DNA strand.

Guanine (G)

Thymine (T)

Cytosine (C)

Cytosine (C)

Adenine (A)

Guanine (G)

Associate the following genetic components with their respective intricate descriptions.

Nucleotide

Five-carbon sugar in DNA

Deoxyribose

Structure of DNA resembling a twisted ladder

Double Helix

Consists of sugar, phosphate, and a nitrogen base

What is the primary building block of a DNA molecule?

Phosphate

Nucleotide

Amino acid

Sugar

Which of the following nitrogenous bases is NOT found in DNA?

Adenine

Thymine

cytosine

Uracil

What is the long name for DNA?

denatured ribonucleic acid

deoxoribonuclear acid

deoxynucleic acid

deoxyribonucleic acid

The "rungs" of the DNA ladder are made of:

glucose and sugars

base pairs and hydrogen bonds

phosphates and hydrogen bonds

sugars and phosphates

DNA molecules differ from RNA molecules in which of the following ways?
I. DNA molecules contain a different type of pentose sugar than do RNA molecules.
II. DNA molecules contain the nitrogenous base cytosine while RNA molecules do not.
III. RNA molecules contain the nitrogenous base uracil while DNA molecules do not.

 I and III only

I, II, and III

II and III only

I and II only

What type of bond holds the complementary base pairs together in a DNA molecule?

Ionic bond

covalent bond

Peptide bond

Hydrogen bond

RNA differs from DNA in that:

it is single stranded

it has uracil

all of these

it has a different kind of sugar

The above diagram illustrates what DNA looks like when it is twisted into the double helix. Three parts of the molecule are labeled: The backbone/sides (A), the "rungs" (B) and the end (C). Predict which part of the molecule you will find phosphorous.

C

A

A and B

B