Middle School Dna

Which sequence of DNA bases would pair with this partial strand
5' ATG TGA CAG 3'

• 3' ATG TGA CAG 5'
• 3' TAC ACT GTC 5'
• 5' GTA AGT GAC 3'
• 5' CAT TCA CTG 3'

What are the 4 nitrogen bases of DNA?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Which of the following best describes a DNA molecule?

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

Tags

NGSS.HS-LS1-1

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the code for proteins, which help the growth and function of living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

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

• cytosine
• guanine
• thymine
• uracil

Tags

NGSS.HS-LS1-1

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Which of the following units are repeatedly joined together to FORM a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• sugar and a nitrogenous base
• deoxyribose sugar and phosphate

In the middle of the DNA strand, the bases (ATCG) are held together by what type of bond? 

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1