BIO 189 FINAL EXAM LATEST 2025 100% ACCURATE
FALL SEMESTER GRADED A+ ARIZONA COLLEGE OF
NURSING
What are mutations?
permanent changes in the DNA sequence of a chromosome.
What are nucleotide dimers and which type(s) of mutagen(s) usually causes them?
Dimers cause mutations because polymerases tend to copy kinked DNA incorrectly. Dimers can
also block the progress of a polymerase, so DNA replication stalls or collapses.UV rays in
sunlight cause them
What is the Semiconservative Model of DNA replication?
Semiconservative replication produces two copies that each contained one of the original
strands and one new strand.
What is a gene?
Unit of information encoded in the sequence of nucleotide basis
Unit of information encoded in the sequence of nucleotide basis
DNA ligase 1 connects the Okazaki fragments
Is DNA usually double-stranded or single-stranded?
double-stranded
, During transcription, what is the template and what is the product?
DNA. The product is mRNA
During transcription from DNA to RNA, you have the following DNA template.
3' GTACGCTCA 5'
What will be the resulting RNA strand?
5' CATGCGAGT 3'
mRNA
messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
tRNA (transfer RNA)
The form of RNA that carries each amino acid to the ribsome to form the polypeptide chain
(protein)
rRNA (ribosomal RNA)
directs the translation of mRNA into proteins
What particle combines oxygen and hydrogen ions to form water?
Complex 4, cytochrome C oxidase
What is the final electron acceptor for oxidative phosphorylation?
FALL SEMESTER GRADED A+ ARIZONA COLLEGE OF
NURSING
What are mutations?
permanent changes in the DNA sequence of a chromosome.
What are nucleotide dimers and which type(s) of mutagen(s) usually causes them?
Dimers cause mutations because polymerases tend to copy kinked DNA incorrectly. Dimers can
also block the progress of a polymerase, so DNA replication stalls or collapses.UV rays in
sunlight cause them
What is the Semiconservative Model of DNA replication?
Semiconservative replication produces two copies that each contained one of the original
strands and one new strand.
What is a gene?
Unit of information encoded in the sequence of nucleotide basis
Unit of information encoded in the sequence of nucleotide basis
DNA ligase 1 connects the Okazaki fragments
Is DNA usually double-stranded or single-stranded?
double-stranded
, During transcription, what is the template and what is the product?
DNA. The product is mRNA
During transcription from DNA to RNA, you have the following DNA template.
3' GTACGCTCA 5'
What will be the resulting RNA strand?
5' CATGCGAGT 3'
mRNA
messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
tRNA (transfer RNA)
The form of RNA that carries each amino acid to the ribsome to form the polypeptide chain
(protein)
rRNA (ribosomal RNA)
directs the translation of mRNA into proteins
What particle combines oxygen and hydrogen ions to form water?
Complex 4, cytochrome C oxidase
What is the final electron acceptor for oxidative phosphorylation?
