Human Genetics Exam Bank Solution Manual Already Passed (Graded A+)
True - Answers All amino acids are characterized by an amino group, a carboxyl group and an R group.
False - DNA, base of RNA, and RNA synthesis - Answers Transcription requires DNA, DNA polymerase,
and uracil nucleotides.
True - Answers Ribosomes facilitate the formation of peptide bonds between amino acids.
True - Answers The primary structure of a protein is determined entirely by the protein's amino acid
sequence.
True - Answers The secondary level of protein structure involves folding of the primary structure upon
itself.
False - it's called a tail - Answers A string of 30 to 100 adenine nucleotides is added to the 3' -end on
mRNA during RNA processing and it's called a cap.
True - Answers Post-translational modification of polypeptides includes: attaching lipids to the
polypeptides, attaching sugar to the polypeptides, chemically changing some amino acids, removal of
some amino acids.
False - it's a folded protein - Answers Bovine spongiform encephalopathy (mad cow disease) is caused by
a wrongly folded virus.
True - Answers PKU and Alkaptonuria are examples of inborn errors of metabolism.
True - Answers Not all codons encode for amino acids, some codons encode stop codons.
True - Answers Antibiotics including Tetracyclines and streptomycin interfere with a cells normal
transcription and translation processes.
True - Answers In translation, unlike DNA replication, the base-pairing rule is not required.
False - it's internal - Answers All the nucleotide sequences in a transcribed mRNA are used in translation.
True - Answers Epigenetic changes do not change the sequence of the DNA.
True - Answers Transcription and translation share the three steps of initiation, elongation, and
termination.
False- RNA is made by transcription and have different sizes of genes. - Answers All RNA's are made by
the same process and have the same size.
False- only one gene - Answers The number of different proteins a cell can produce is equal to the
number of genes in that cell.
True - Answers The sequences in mRNA that are not translated are the introns.
, True - Answers The hemoglobin molecule has four subunits of two types.
True - Answers Results from the study of globin variants indicate that the alteration of one amino acid
can cause a genetic disease.
True - Answers The existence of differential drug sensitivity serves to reinforce the idea that each
individual is biologically and biochemically unique.
True - Answers Almost 70 percent of women with breast cancer are estrogen-sensitive, which means
their own natural estrogen encourages the growth of cancer cells
True - Answers An essential amino acid is defined as one that is produced by the body or it can be
obtained through diet.
False- All genetic disorders result in it - Answers All metabolic disorders result in serious phenotypic
consequences.
False- it happens when they are newborns - Answers All individuals must undergo mandatory screening
for genetic defects such as PKU and galactosemia in their teenage years.
True - Answers Thalassemias are hemoglobin disorders in which the production of alpha and beta chains
are out of balance.
False - It's beta globin that causes sickle cell - Answers Large scale alterations of the amino acid structure
in alpha globin are the cause of sickle cell anemia.
True - Answers People who can taste PTC have been shown to be more likely than non-tasters to dislike
broccoli and Brussels sprouts.
True - Answers Some success has been achieved in efforts to treat sickle cell disease by the process of
gene switching which reactivates the fetal version of the beta globin gene.
True - Answers For the average person in the U.S., the largest source of radiation exposure is
background radiation.
True - Answers In a missed se mutation a single amino acid is altered.
True - Answers A nonsense mutation results in a protein that is shorter than the normal version.
True - Answers Thymine dimers involve adjacent nucleotides in DNA and result from exposure to UV
light.
False - it causes frameshift mutation - Answers The mutagenic chemical 2-amino-purine is a base analog
whose structure closely resembles that of adenine and causes substitution mutations.
False - somatic is what causes it - Answers Germ-line mutations are the underlying cause of most types
of cancer.
True - Answers All amino acids are characterized by an amino group, a carboxyl group and an R group.
False - DNA, base of RNA, and RNA synthesis - Answers Transcription requires DNA, DNA polymerase,
and uracil nucleotides.
True - Answers Ribosomes facilitate the formation of peptide bonds between amino acids.
True - Answers The primary structure of a protein is determined entirely by the protein's amino acid
sequence.
True - Answers The secondary level of protein structure involves folding of the primary structure upon
itself.
False - it's called a tail - Answers A string of 30 to 100 adenine nucleotides is added to the 3' -end on
mRNA during RNA processing and it's called a cap.
True - Answers Post-translational modification of polypeptides includes: attaching lipids to the
polypeptides, attaching sugar to the polypeptides, chemically changing some amino acids, removal of
some amino acids.
False - it's a folded protein - Answers Bovine spongiform encephalopathy (mad cow disease) is caused by
a wrongly folded virus.
True - Answers PKU and Alkaptonuria are examples of inborn errors of metabolism.
True - Answers Not all codons encode for amino acids, some codons encode stop codons.
True - Answers Antibiotics including Tetracyclines and streptomycin interfere with a cells normal
transcription and translation processes.
True - Answers In translation, unlike DNA replication, the base-pairing rule is not required.
False - it's internal - Answers All the nucleotide sequences in a transcribed mRNA are used in translation.
True - Answers Epigenetic changes do not change the sequence of the DNA.
True - Answers Transcription and translation share the three steps of initiation, elongation, and
termination.
False- RNA is made by transcription and have different sizes of genes. - Answers All RNA's are made by
the same process and have the same size.
False- only one gene - Answers The number of different proteins a cell can produce is equal to the
number of genes in that cell.
True - Answers The sequences in mRNA that are not translated are the introns.
, True - Answers The hemoglobin molecule has four subunits of two types.
True - Answers Results from the study of globin variants indicate that the alteration of one amino acid
can cause a genetic disease.
True - Answers The existence of differential drug sensitivity serves to reinforce the idea that each
individual is biologically and biochemically unique.
True - Answers Almost 70 percent of women with breast cancer are estrogen-sensitive, which means
their own natural estrogen encourages the growth of cancer cells
True - Answers An essential amino acid is defined as one that is produced by the body or it can be
obtained through diet.
False- All genetic disorders result in it - Answers All metabolic disorders result in serious phenotypic
consequences.
False- it happens when they are newborns - Answers All individuals must undergo mandatory screening
for genetic defects such as PKU and galactosemia in their teenage years.
True - Answers Thalassemias are hemoglobin disorders in which the production of alpha and beta chains
are out of balance.
False - It's beta globin that causes sickle cell - Answers Large scale alterations of the amino acid structure
in alpha globin are the cause of sickle cell anemia.
True - Answers People who can taste PTC have been shown to be more likely than non-tasters to dislike
broccoli and Brussels sprouts.
True - Answers Some success has been achieved in efforts to treat sickle cell disease by the process of
gene switching which reactivates the fetal version of the beta globin gene.
True - Answers For the average person in the U.S., the largest source of radiation exposure is
background radiation.
True - Answers In a missed se mutation a single amino acid is altered.
True - Answers A nonsense mutation results in a protein that is shorter than the normal version.
True - Answers Thymine dimers involve adjacent nucleotides in DNA and result from exposure to UV
light.
False - it causes frameshift mutation - Answers The mutagenic chemical 2-amino-purine is a base analog
whose structure closely resembles that of adenine and causes substitution mutations.
False - somatic is what causes it - Answers Germ-line mutations are the underlying cause of most types
of cancer.
