DNA Protein Synthesis Mutations Heredity

Which of the following best describes a DNA molecule?

• double helix

• contains ribose

• made of amino acids

• contains uracil

Tags

NGSS.HS-LS1-1

How many nitrogen bases does DNA have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS1-1

Every living thing has genetic information stored in the form of

• Ribosomes

• DNA

• Chloroplast

• Mitochondria

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

According to the amino acid chart, which mutant is most like the wild type organism?

• Mutant 1

• Mutant 2

• Mutant 3

• Mutant 4

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Which of these shows an example of an insertion mutation?

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

During transcription the DNA base sequence is transcribed into a complimentary mRNA sequence. A codon table like the one shown below lists the amino acids coded for by particular triads of mRNA bases. A segment of DNA has undergone a mutation in which one nucleotide has been changed. The original sequence was ACG and the new sequence is ACA. Use the codon table to determine whether or not this mutation will cause a change in the phenotype of the organism.

• yes, the phenotype of the organism would change because a new amino acid will be coded

  for

• yes, the phenotype of the organism would change because any change in the DNA

  sequence will cause a change in phenotype.

• Even though the DNA sequence changed, the sequence still codes for the

  same amino acid, so no change in phenotype will occur

• It is impossible to determine if a change in phenotype will occur using only the

  DNA sequence.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which mutation will cause translation to stop?

• Mutations 1 and 3 only

• Mutation 1 only

• Mutation 2 only

• Muations 1, 2, 3

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

The codon CCU codes for what amino acid?

• Isoleucine

• Stop

• Methionine

• Proline

Tags

NGSS.HS-LS1-6

Use the mRNA below to select the correct amino acid sequence:

AUG-UCA-AAA-UAG

• MET-SER-LYS-STOP

• MET-THR-LYS-TYR

• LEU-SER-CYS-STOP

• ILE-LYS-SER-STOP

Tags

NGSS.HS-LS1-1