gene expression

Description

mutations, metabolic pathways, protein synthesis
georgia_rae
Quiz by georgia_rae, updated more than 1 year ago
georgia_rae
Created by georgia_rae over 8 years ago
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Resource summary

Question 1

Question
what is 3 bases on DNA called?
Answer
  • Codon
  • Triplet
  • Anti-codon

Question 2

Question
what is 3 bases called on tRNA?
Answer
  • codon
  • anti-codon
  • triplet

Question 3

Question
there is two stages of protein synthesis; translation and transcription
Answer
  • True
  • False

Question 4

Question
Translation happens before transcription
Answer
  • True
  • False

Question 5

Question
where does transcription occur?
Answer
  • nucleus
  • cytoplasm
  • ribosome

Question 6

Question
what happens in translation?
Answer
  • 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

Question 7

Question
more than one codon, can code for an amino acid
Answer
  • True
  • False

Question 8

Question
what is the purpose of transcription?
Answer
  • 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

Question 9

Question
what are the types of mutations that cause frameshift?
Answer
  • deletion
  • insertion
  • substitution

Question 10

Question
what type of substitution mutation changes the coded for amino acid?
Answer
  • silent
  • nonsense
  • missense

Question 11

Question
what type of mutation can be inherited?
Answer
  • somatic
  • gametic

Question 12

Question
what type of substitution mutation codes for a stop codon?
Answer
  • silent
  • nonsense
  • missense

Question 13

Question
silent mutation is the result of redundancy due to degeneracy
Answer
  • True
  • False

Question 14

Question
what is frameshift?
Answer
  • 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

Question 15

Question
can mutations affect the metabolic pathway?
Answer
  • yes
  • no

Question 16

Question
what can determine a organism's phenotype
Answer
  • genotype
  • enviroment
  • nothing
  • upbringing

Question 17

Question
what are the things that cause mutations called?
Answer
  • genes
  • mutagen
  • bases
  • nonsense

Question 18

Question
the definition of metabolic pathway is linked biochemical reactions controlled by enzymes that maintain life processes in organisms
Answer
  • True
  • False
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