DNA quiz- lesson 2 - topic 3 - edexcel Topic 3 Genetics

What is the structure of DNA known as?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which base pairs with adenine (A) in DNA?

• Cytosine (C)

• Guanine (G)

• Thymine (T)

• Uracil (U)

What are chromosomes made of?

• Proteins only

• RNA only

• DNA and proteins

• Lipids and carbohydrates

How many chromosomes do humans typically have in each cell?

• 23

• 46

• 69

• 92

Which of the following is a component of a nucleotide?

• Lipid

• Protein

• Sugar

• Carbohydrate

Which of the following is NOT a base found in DNA?

• Adenine (A)

• Thymine (T)

• Uracil (U)

• Cytosine (C)

What is a genome?

• • A)A single gene

• • B)A complete set of DNA in an organism

• • C)A pair of chromosomes

• • D)A sequence of amino acids

What is the complementary base pair for cytosine (C) in DNA?

• • A)Adenine (A)

• • B)Thymine (T)

• • C)Guanine (G)

• • D)Uracil (U)

What is the primary function of chromosomes?

• • A) To store energy

• • B)To carry genetic information

• • C)To produce proteins

• • D)To catalyze chemical reactions

what is a protein made of?

• amino acids

• fatty acids

• lipids

• glucose