DNA Structure

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

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Tags

NGSS.MS-LS3-1

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains uracil

Tags

NGSS.HS-LS1-1

Which of the following monomers are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

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

• the shape (structure) of the nitrogen bases
• the order (sequence) of the nitrogen bases
• the color of the nitrogen bases
• the frequency (number) of nitrogen bases

Tags

NGSS.MS-LS3-1

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

Genetic engineering has been used to produce

• medicines.
• food animals.
• improved crops.
• all of these.

Tags

NGSS.MS-LS4-5

Which DNA strand is complementary to the top one shown in the picture?

• A
• B
• C
• D

The diagram shows the base sequence of a strand of DNA.
From left to right, what is the sequence of the complementary strand of DNA in this molecule?

• T G A A C
• A C T  T G
• T G U U C
• U C T T G

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

Who was given credit for determining the shape of DNA? 

• Avery
• Watson and Darwin
• Watson and Crick
• Franklin and Crick