DNA

How many nitrogenous bases are there in DNA?

• 1

• 2

• 3

• 4

Which of the following is not a nitrogenous base found in DNA?

• Adenine

• Guanine

• Uracil

• Thymine

• Cytosine

DNA is made up of Nitrogenous base pairs. The bases bond in which of the following patterns?

• Adenine – Thymine; Cytosine – Guanine

• Adenine – Cytosine; Guanine – Thymine

• Adenine – Guanine; Cytosine – Thymine

• Adenine – Guanine; Cytosine – Taurine

DNA looks like a “twisted ladder”. If the “rungs” of the ladder are made up of nitrogenous bases, what are the hand rails or backbone of the ladder made up of?

• Sugars and Salts

• Phosphates

• Sugars

• Sugars and Phosphates

Who is credited with discovering the structure of DNA?

• Holmes and Watson

• Franklin and Crick

• Crick and Neck

• Watson and Crick

What is a gene?

• A cell organelle

• A nitrogenous base in DNA

• A section of DNA that codes for a specific protein.

• A double helix

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NGSS.HS-LS1-1

What is a chromosome?

• A condensed form of DNA. It is made of an entire strand of DNA wrapped around histone proteins.

• A British rock band.

• A part of DNA that has the specific instructions to make a protein.

• The part of the cell where DNA is found

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Why is DNA important?

• it is very small and very complicated

• it's in everything

• it serves as the blueprint for traits of all living things

• because we eat it every day for energy

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NGSS.MS-LS3-1

NGSS.MS-LS4-4

A _________ is DNA tightly coiled around proteins.

• gene

• chromosome

• trait

• mutation

Tags

NGSS.HS-LS1-1

A _______ is a segment of DNA that codes for a specific protein or RNA molecule.

• gene

• gamete

• chromosome

• chromatid

Tags

NGSS.HS-LS1-1