PATHOPHYSIOLOGY 8TH EDITION MCCANCE
FINAL PAPER 2026 QUESTIONS WITH
COMPLETE ANSWERS GRADED A+
◉ missense mutations. Answer: Base pair substitution occurs when
one base pair is substituted by another, resulting in a change in
complementary base pairing when the DNA is replicated or when
RNA and proteins are synthesized. Some base pair substitutions are
called missense mutations because the "sense" or meaning of the
gene is altered to create a new protein that does not function
normally.
◉ frameshift mutations. Answer: Are caused by Base pair deletions
or additions
◉ Mutation rate. Answer: In Humans is about 10-4 to 10-7
◉ Mutations graphic. Answer: Mutation is a change in a DNA
sequence.
Mutations can result from DNA copying mistakes made during cell
division, exposure to ionizing radiation, exposure to chemicals called
mutagens, or infection by viruses.
,Germline mutations occur in the eggs and sperm and can be passed
on to offspring, while somatic mutations occur in body cells and are
not passed on.
◉ Heredity refers to the genetic transmission of traits from parents
to offspring? True or False. Answer: Website:
https://geneed.nlm.nih.gov/topic_subtopic.php?tid=5
True, Heredity helps explain why children tend to resemble their
parents, as well as how a genetic disease runs in a family. Some
genetic conditions are caused by mutations in a single gene. These
conditions are usually inherited in one of several straightforward
patterns, including autosomal dominant, autosomal recessive, X-
linked dominant, X-linked recessive, codominant, and mitochondrial
inheritance patterns. Complex disorders and multifactorial
disorders are caused by a combination of genetic and environmental
factors. These disorders may cluster in families, but do not have a
clear-cut pattern of inheritance.
◉ Transcription. Answer: process by which RNA is synthesized from
a DNA template
◉ DNA vs RNA Activity. Answer: DNA Activities
Deoxyribose backbone
,Double-stranded
Thymine
Remains in the nucleus
RNA Activities
Travels from the nucleus into the cytoplasm
Single-stranded
Ribose backbone
Uracil
◉ Transcription. Answer: Transcription is the process by which RNA
is formed from DNA to carry the genetic code into the cytoplasm
where proteins are synthesized.
◉ Transcription Process. Answer: Translation is the process by
which mRNA interacts with transfer RNA (tRNA) in the ribosome
and results in the formation of amino acid sequences that bind
together to form polypeptides and eventually proteins.
The mRNA that has been transcribed in the nucleus moves into the
cytoplasm and binds with a ribosome at a particular sequence of
mRNA base pairs called an initiation site (the codon AUG for
methionine).
, The ribosome moves along the mRNA and matches each codon with
an anticodon on tRNA.
As each tRNA is added to the mRNA strand, it brings with it an
amino acid that is specific to the codons on the mRNA.
The amino acids bind to one another sequentially, forming
polypeptide chains.
Termination of translation occurs when the ribosome encounters
one of three termination codons on the mRNA (UAA, UAG, or UGA).
◉ RNA. Answer: uses uracil to match with adenine
◉ Translation occurs in the _____.. Answer: Ribosome
Translation is the process by which mRNA interacts with transfer
RNA (tRNA) in the ribosome and results in the formation of amino
acid sequences that bind together to form polypeptides and
eventually proteins.
FINAL PAPER 2026 QUESTIONS WITH
COMPLETE ANSWERS GRADED A+
◉ missense mutations. Answer: Base pair substitution occurs when
one base pair is substituted by another, resulting in a change in
complementary base pairing when the DNA is replicated or when
RNA and proteins are synthesized. Some base pair substitutions are
called missense mutations because the "sense" or meaning of the
gene is altered to create a new protein that does not function
normally.
◉ frameshift mutations. Answer: Are caused by Base pair deletions
or additions
◉ Mutation rate. Answer: In Humans is about 10-4 to 10-7
◉ Mutations graphic. Answer: Mutation is a change in a DNA
sequence.
Mutations can result from DNA copying mistakes made during cell
division, exposure to ionizing radiation, exposure to chemicals called
mutagens, or infection by viruses.
,Germline mutations occur in the eggs and sperm and can be passed
on to offspring, while somatic mutations occur in body cells and are
not passed on.
◉ Heredity refers to the genetic transmission of traits from parents
to offspring? True or False. Answer: Website:
https://geneed.nlm.nih.gov/topic_subtopic.php?tid=5
True, Heredity helps explain why children tend to resemble their
parents, as well as how a genetic disease runs in a family. Some
genetic conditions are caused by mutations in a single gene. These
conditions are usually inherited in one of several straightforward
patterns, including autosomal dominant, autosomal recessive, X-
linked dominant, X-linked recessive, codominant, and mitochondrial
inheritance patterns. Complex disorders and multifactorial
disorders are caused by a combination of genetic and environmental
factors. These disorders may cluster in families, but do not have a
clear-cut pattern of inheritance.
◉ Transcription. Answer: process by which RNA is synthesized from
a DNA template
◉ DNA vs RNA Activity. Answer: DNA Activities
Deoxyribose backbone
,Double-stranded
Thymine
Remains in the nucleus
RNA Activities
Travels from the nucleus into the cytoplasm
Single-stranded
Ribose backbone
Uracil
◉ Transcription. Answer: Transcription is the process by which RNA
is formed from DNA to carry the genetic code into the cytoplasm
where proteins are synthesized.
◉ Transcription Process. Answer: Translation is the process by
which mRNA interacts with transfer RNA (tRNA) in the ribosome
and results in the formation of amino acid sequences that bind
together to form polypeptides and eventually proteins.
The mRNA that has been transcribed in the nucleus moves into the
cytoplasm and binds with a ribosome at a particular sequence of
mRNA base pairs called an initiation site (the codon AUG for
methionine).
, The ribosome moves along the mRNA and matches each codon with
an anticodon on tRNA.
As each tRNA is added to the mRNA strand, it brings with it an
amino acid that is specific to the codons on the mRNA.
The amino acids bind to one another sequentially, forming
polypeptide chains.
Termination of translation occurs when the ribosome encounters
one of three termination codons on the mRNA (UAA, UAG, or UGA).
◉ RNA. Answer: uses uracil to match with adenine
◉ Translation occurs in the _____.. Answer: Ribosome
Translation is the process by which mRNA interacts with transfer
RNA (tRNA) in the ribosome and results in the formation of amino
acid sequences that bind together to form polypeptides and
eventually proteins.
