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mutations, metabolic pathways, protein synthesis

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gene expression

gene expression

Question 1 of 18

1

what is 3 bases on DNA called?

Select one of the following:

  • Codon

  • Triplet

  • Anti-codon

Explanation

Question 2 of 18

1

what is 3 bases called on tRNA?

Select one of the following:

  • codon

  • anti-codon

  • triplet

Explanation

Question 3 of 18

1

there is two stages of protein synthesis; translation and transcription

Select one of the following:

  • True
  • False

Explanation

Question 4 of 18

1

Translation happens before transcription

Select one of the following:

  • True
  • False

Explanation

Question 5 of 18

1

where does transcription occur?

Select one of the following:

  • nucleus

  • cytoplasm

  • ribosome

Explanation

Question 6 of 18

1

what happens in translation?

Select one or more of the following:

  • the ribosome reads the mRNA

  • the mRNA is coded for

  • the tRNA brings the coded for amino acid to the mRNA

  • the polypeptide chain is released and folds into a functional protein

  • the mRNA leaves the nucleus

Explanation

Question 7 of 18

1

more than one codon, can code for an amino acid

Select one of the following:

  • True
  • False

Explanation

Question 8 of 18

1

what is the purpose of transcription?

Select one of the following:

  • the purpose is for mRNA to transcribe the code for a protein so the original DNA doesnt get damaged

  • the purpose is to use mRNA to make a protein that can be used for cellular functions

Explanation

Question 9 of 18

1

what are the types of mutations that cause frameshift?

Select one or more of the following:

  • deletion

  • insertion

  • substitution

Explanation

Question 10 of 18

1

what type of substitution mutation changes the coded for amino acid?

Select one of the following:

  • silent

  • nonsense

  • missense

Explanation

Question 11 of 18

1

what type of mutation can be inherited?

Select one of the following:

  • somatic

  • gametic

Explanation

Question 12 of 18

1

what type of substitution mutation codes for a stop codon?

Select one of the following:

  • silent

  • nonsense

  • missense

Explanation

Question 13 of 18

1

silent mutation is the result of redundancy due to degeneracy

Select one of the following:

  • True
  • False

Explanation

Question 14 of 18

1

what is frameshift?

Select one of the following:

  • when one base is inserted or deleted and the bases are moved over one resulting in different amino acids

  • when a base is swapped for another base

  • when the stop codon is coded for and results in the polypeptide chain not being completed and an unfunctional protein made

Explanation

Question 15 of 18

1

can mutations affect the metabolic pathway?

Select one of the following:

  • yes

  • no

Explanation

Question 16 of 18

1

what can determine a organism's phenotype

Select one or more of the following:

  • genotype

  • enviroment

  • nothing

  • upbringing

Explanation

Question 17 of 18

1

what are the things that cause mutations called?

Select one of the following:

  • genes

  • mutagen

  • bases

  • nonsense

Explanation

Question 18 of 18

1

the definition of metabolic pathway is linked biochemical reactions controlled by enzymes that maintain life processes in organisms

Select one of the following:

  • True
  • False

Explanation

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