RNA and Protein Synthesis (chpt 13 review)

Which of the following nucleotides is found in RNA not in DNA?

• adenine

• guanine

• uracil

• cytosine

Answer explanation

RNA contains uracil NOT thymine.

Two differences between RNA and DNA are

• RNA contains Ribose and is single-stranded

• DNA contains deoxyribose and is single-stranded

• RNA contains deoxyribose and is double-stranded

• DNA contains ribose and is single-stranded

Answer explanation

DNA = Deoxyribose & Double strand

RNA = Ribose & Single-strand

How many nucleotides on mRNA are in a codon which specifies for ONE amino acid?

• 1

• 2

• 3

• 4

Answer explanation

RNA molecules are produced during

• respiration

• transcription

• photosynthesis

• translation

Answer explanation

Molecules of mRNA are produced during TRANSCRIPTION

ACU specifies for which amino acid?

• Ser

• Gly

• Ala

• Thr

Answer explanation

During translation

• copies of DNA molecules are made

• mRNA code to make proteins

• tRNA is made from mRNA

• mRNA is made from a DNA code

Answer explanation

during TRANSLATION mRNA (messenger RNA) translates into proteins

Where are codons and anticodons found?

• codons are on mRNA & anticodons are on rRNA

• anticodons are on mRNA & codons are on tRNA

• codons are on mRNA & anticodons are on tRNA

• anticodons are on rRNA & codons are on tRNA

Answer explanation

tRNA = anticodon

mRNA = codon

Information is transferred in most organisms through which of the following sequences?

• DNA --> RNA --> protein

• protein -->

  DNA --> RNA

• RNA -->

  protein --> DNA

• RNA --> DNA --> protein

Answer explanation

Tags

NGSS.HS-LS1-1

A point mutation

• only happens when there is a mutagen

• is a chromosomal mutation

• involves one or a few nucleotide

• changes the number of genes

Answer explanation

Tags

NGSS.HS-LS3-2

These are types of

• DNA

• amino acids

• proteins

• RNA

Answer explanation

These are types of RNA.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6