Unit 5 Review Quiz

Which molecule serves as a cell's permanent information storage?

• Amino acids

• DNA

• RNA

• Ribosomes

Tags

NGSS.HS-LS3-1

Which of the following is NOT a component of a NUCLEOTIDE?

• A deoxyribose or ribose sugar

• A phosphate

• One of four nitrogenous bases

• An amino acid

Which TWO represent the best analogies for the role of the phosphates and sugars in DNA?

• The hooks in the zipper that interlock with each other

• The protective covers of a book

• The strips of fabric on each side of the zipper holding the hooks

• The letters on a page/keyboard that in sequence form "words"

Which is the best analogy for the STRUCTURAL role of nitrogenous bases in DNA?

• The hooks in the zipper that interlock with each other

• Protective covers on a book

• The strips of fabric holding the zipper hooks

• Letters on a page/keyboard that in sequence form words

Which is the best analogy for the FUNCTIONAL role of nitrogenous bases in DNA?

• The strips of fabric holding the zipper hooks

• Protective covers of a book

• The hooks in the zipper that interlock with each other

• Letters on a page/keyboard that in sequence form "words"

Which is NOT an example of a nitrogenous base?

• Adenine (A)

• Thymine (T)

• Serine (S)

• Guanine (G)

Why are the nitrogenous bases hidden in the middle of the double-stranded DNA?

• Protection - it's our cells' permanent info source

• The nitrogenous bases are not in the middle

• It's easier to replicate the DNA that way

• It's easier to transcribe the DNA that way

What is a GENOME?

• Your complete DNA sequence spread out across your complete set of chromosomes

• A section of DNA that codes for a functional product

• A protein that reads mRNA to make other proteins

• The correspondence between certain codons and certain amino acids

Which of the following has to happen to the double-stranded DNA BEFORE information can be read from it?

• The relevant DNA must be replicated

• The relevant DNA must be translated

• The relevant DNA must be transcribed

• The relevant DNA must be unwound, unzipped

If (nearly) every cell in your body contains a complete genome, how (for example) are nerve cells different from muscle cells?

• Different cells delete different parts of the DNA

• Some cells eject some of their chromosomes

• Different cells unwind and read different parts of the genome

• Different cells mutate their DNA in different ways

Tags

NGSS.HS-LS1-1