Coumbe 10 Spec Bio - DNA

The main purpose of DNA is to store information. Where is information stored within a DNA molecule?

• in the sequence of nitrogen bases

• in the deoxyribose

• in a single nucleotide

• in the phosphate groups

• In the cell wall

Protein molecules are composed of long chains of _______.

• DNA

• Cells

• RNA

• Ribosomes

• Amino acids

Which sequence of complementary DNA bases would pair with this partial strand

ATG TGA CAG?

• ATG TGA CAG

• GTA AGT GAC

• TAC ACT GTC

• CAT TCA CTG

Which of the following best describes a DNA molecule?

• double helix

• made of amino acids

• contains ribose

• contains uracil

• a protein

What are not components of a nucleotide?

• acids

• sugar

• phosphate

• lipids

• nitrogen base

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

• thymine

• adenine

• guanine

• uracil

• cytosine

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

• thymine

• adenine

• guanine

• uracil

• cytosine

DNA is _______________________

• Deoxyribonucleic acid

• Trioxyribnuclic acid

• Protein chain

• Ribonucleic acid,

• Lipid

Which organelle is DNA usually found in?

• cell membrane

• nucleus

• chloroplast

• Mitochondria

• cell wall

Why is DNA important?

• it is very small and very complicated

• because we eat it every day for energy

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

• it's in everything

• your body needs it