GNRS 515 Advanced Pathophysiology – Questions
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Practice questions for this set
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DNA to RNA (uracil replaces thymine)
Choose an answer
1 DNA replication 2 Epigenetics
3 Transcription 4 Missense mutation
Don't know?
Terms in this set (101)
DNA replication untwisted and zipped by hydrogen bonds being
broken between two pairs
DNA polymerase pairs new bases, aka complementary base pairing
(ATCG)
Chromosome aberrations occur occurs among number or structure
where?
, Explain base pair substitution mutation where ATCG base pairing is mixed
Missense mutation A base-pair substitution that results in a codon that
codes for a different amino acid. The "sense" of the
codon is altered
Nonsense mutation substitutions into a stop codon, but it is in the wrong
place! (quite dangerous)
Silent mutation nucleotide change does not affect amino acid
Frameshift mutation insertion or deletion of one or more base pairs.
Changes the entire reading frame of DNA sequence
(also dangerous)
Codons consist of a group of three amino acids that start or
stop DNA processing
Transcription DNA to RNA (uracil replaces thymine)
Translation RNA to protein (uracil replaces thymine)
mRNA synthesized from DNA by RNA polymerase. Uses
tRNA (by binding to ribosome) to sequence amino
acids
Transcription factors also binds to DNA & regulates the transcription
timing. Can turn on/off gene expression
Epigenetics is the study of heritable changes in gene expression
(phenotype) caused by mechanisms other than
changes in DNA (nucleotide) sequences; e.g. when a
somatic cell divides (mitotic inheritance), when
gametes are produced (germline inheritance), or
both
With Appropriate Solutions
Save
Practice questions for this set
Learn 1 /7 Study using Learn
DNA to RNA (uracil replaces thymine)
Choose an answer
1 DNA replication 2 Epigenetics
3 Transcription 4 Missense mutation
Don't know?
Terms in this set (101)
DNA replication untwisted and zipped by hydrogen bonds being
broken between two pairs
DNA polymerase pairs new bases, aka complementary base pairing
(ATCG)
Chromosome aberrations occur occurs among number or structure
where?
, Explain base pair substitution mutation where ATCG base pairing is mixed
Missense mutation A base-pair substitution that results in a codon that
codes for a different amino acid. The "sense" of the
codon is altered
Nonsense mutation substitutions into a stop codon, but it is in the wrong
place! (quite dangerous)
Silent mutation nucleotide change does not affect amino acid
Frameshift mutation insertion or deletion of one or more base pairs.
Changes the entire reading frame of DNA sequence
(also dangerous)
Codons consist of a group of three amino acids that start or
stop DNA processing
Transcription DNA to RNA (uracil replaces thymine)
Translation RNA to protein (uracil replaces thymine)
mRNA synthesized from DNA by RNA polymerase. Uses
tRNA (by binding to ribosome) to sequence amino
acids
Transcription factors also binds to DNA & regulates the transcription
timing. Can turn on/off gene expression
Epigenetics is the study of heritable changes in gene expression
(phenotype) caused by mechanisms other than
changes in DNA (nucleotide) sequences; e.g. when a
somatic cell divides (mitotic inheritance), when
gametes are produced (germline inheritance), or
both
