LS23L: Lab E- DNA isolation and
amplification Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Every human inherits___ •one complete set of chromosomes from
each parent: half of their DNA from their
father and half from their mother.
Mitchondria also contain •small CIRCULAR molecules that are
DNA, and they are_______. These remnants of endocytosed bacteria
mitochondrial chromosomes •these mitochondrial chromosomes have
have______ lost many of the genes they once had
and yet still encode proteins, tRNAs, and
rRNA used in the miochondria today.
Unlike nuclear chromosomes, •the mother, mitchondria in the sperm are
mitochondrial DNA is destroyed after fertilization.
inherited strictly from___
Since the mitchondrial •haploid
genome is _____, having only •haplotypes
contribution from the mother,
mitochondrial DNA types/
sequences are termed_____
, Although most of the DNA we •at a low frequency through either
inherit from our parents is replication errors, exposure to mutagens,
unchanged, changes in the or oxidizing conditions.
DNA sequence occur_____. •passed down to subsequent generations
These are then____ and thus provide us with a history of our
lineage.
Since mitchondria are solely •mothers
inherited from our_____, •to probe our maternal lineage.
following the DNA sequence
of our mitchondrial DNA
provides us a way_____
Between fifty thousand and •migrating out of Africa and inhabiting all
two hundred thousand years parts of the world.
ago, our ancestors started____
At different times, groups of •LABEL each group
people made the decision to
move in different directions,
carrying with them a set of
mutations. These DNA
changes effectively____
By determining our DNA •recreate movements of our ancestors.
sequences, we can____
haplotype is___ •the NUCLEOTIDE SEQUENCE of your
mitochondrial genome
amplification Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Every human inherits___ •one complete set of chromosomes from
each parent: half of their DNA from their
father and half from their mother.
Mitchondria also contain •small CIRCULAR molecules that are
DNA, and they are_______. These remnants of endocytosed bacteria
mitochondrial chromosomes •these mitochondrial chromosomes have
have______ lost many of the genes they once had
and yet still encode proteins, tRNAs, and
rRNA used in the miochondria today.
Unlike nuclear chromosomes, •the mother, mitchondria in the sperm are
mitochondrial DNA is destroyed after fertilization.
inherited strictly from___
Since the mitchondrial •haploid
genome is _____, having only •haplotypes
contribution from the mother,
mitochondrial DNA types/
sequences are termed_____
, Although most of the DNA we •at a low frequency through either
inherit from our parents is replication errors, exposure to mutagens,
unchanged, changes in the or oxidizing conditions.
DNA sequence occur_____. •passed down to subsequent generations
These are then____ and thus provide us with a history of our
lineage.
Since mitchondria are solely •mothers
inherited from our_____, •to probe our maternal lineage.
following the DNA sequence
of our mitchondrial DNA
provides us a way_____
Between fifty thousand and •migrating out of Africa and inhabiting all
two hundred thousand years parts of the world.
ago, our ancestors started____
At different times, groups of •LABEL each group
people made the decision to
move in different directions,
carrying with them a set of
mutations. These DNA
changes effectively____
By determining our DNA •recreate movements of our ancestors.
sequences, we can____
haplotype is___ •the NUCLEOTIDE SEQUENCE of your
mitochondrial genome
