WGU - C190 EXAM QUESTIONS AND ANSWERS
UPDATED (2024/2025) (VERIFIED ANSWERS)
.galactose and glucose.
hydrolysis and catabolism - ANSWER-Maltose, a milk sugar, is broken down into
two monosaccharides called galactose and glucose by maltase. Maltase allows
the reaction to occur at the body temperature of the organism.
In this example, maltose is broken down into______________ and
_______________This is an example of these types of reactions:
_______________ and_________________
.10% - ANSWER-An energy pyramid shows how the amount of energy available
for the next trophic levels is considerably less. The amount of energy available
for the next trophic level is
.4 - ANSWER-There are_______________ different nitrogen bases found in DNA.
.74% T, 26% C - ANSWER-The Europeans' lactase persistence allele can be
labeled T and the alternative allele is C. These labels represent the nucleotide
bases at a particular location; the T allele is associated with lactase persistence.
Which item below shows the allele frequencies as they might be found in the
gene pool of a population?
.A
,T - ANSWER-According to the base pairing rules, RNA polymerase will add an
_____ to the growing strand of RNA if the DNA template has a _______.
.A drug that inhibits, or blocks, the action of PCSK9 - ANSWER-If the goal is to
lower LDL in blood, which kind of drug might be helpful?
.A food web - ANSWER-is appropriate for showing feeding relationships in
systems that include many species on each level and those that include many
omnivores
.A medication that blocks viral attachment by binding to viral proteins -
ANSWER-One approach for treating viral infections is to block attachment.
Theoretically, which treatment approach would be better?
.A moderate percentage of people will be lactase persistent, and many people
will be heterozygous for lactase persistence alleles. - ANSWER-What would you
predict about a population formed from the mixing of people from many
different cultures worldwide?
.A mutation in the gene for the light absorbing proteins - ANSWER-What is the
most likely cause of colorblindness?
.A nucleotide - ANSWER-includes a nitrogenous base, a 5-carbon sugar, and a
phosphate group.
.A segment of DNA is copied into RNA; the RNA is then used to build proteins. -
ANSWER-How does a gene produce proteins?
,.A) DNA → B) RNA → C) protein(trait) - ANSWER-the components of the Central
Dogma of Biology
.adaptations - ANSWER-Traits that are more favorable and promote survival
AND reproduction
.Adenine - ANSWER-pairs with thymine.
.Adenine, guanine
Cytosine
Adenine
Cytosine, guanine - ANSWER-These nitrogenous bases are found in DNA and
RNA. __________and __________are purine nitrogenous bases.
_____________is a pyrimidine nitrogenous base. ___________ bonds with
thymine (in DNA) and uracil (in RNA). ___________bonds with _____________.
.Adenine, guanine, cytosine - ANSWER-Both DNA and RNA contain similar bases.
Which bases do both types of nucleic acids contain in their nucleotides.
.Adhesion - ANSWER-water molecules binding to other molecules is
called________________
.Adhesion - ANSWER-When water binds to the walls of the cells, this is called
.Adhesion proteins - ANSWER-are found between cells
, .Adhesion proteins - ANSWER-bind cells together.
.All or most eukaryotes, including plants, animals, and fungi. - ANSWER-One of
the key enzymes in cellular respiration is cytochrome-c oxidase. What kinds of
organisms do you predict would have this enzyme in their cells?
.Allopatric speciation - ANSWER-means "different country." Due to different
environmental pressures in the different geological areas, species may form
through changes that do not allow them to breed or exchange individuals
between the populations.
.Amino acids - ANSWER-What units (monomers) make up a protein?
.An enzyme - ANSWER-In DNA replication in cells, DNA is separated by
.Antibiotics - ANSWER-may decrease the amount of healthy cells in the patient's
body.
.Antibodies - ANSWER-are proteins that mark disease causing pathogens for
destruction by white blood cells.
.Antibodies - ANSWER-IgA immunoglobulin, found in tears and saliva, fight
pathogens in the eyes and mouth
.Are hydrophobic - ANSWER-Why are lipids such a challenge to digest, absorb,
and transport in the blood? Lipids pose a special challenge because
they__________
UPDATED (2024/2025) (VERIFIED ANSWERS)
.galactose and glucose.
hydrolysis and catabolism - ANSWER-Maltose, a milk sugar, is broken down into
two monosaccharides called galactose and glucose by maltase. Maltase allows
the reaction to occur at the body temperature of the organism.
In this example, maltose is broken down into______________ and
_______________This is an example of these types of reactions:
_______________ and_________________
.10% - ANSWER-An energy pyramid shows how the amount of energy available
for the next trophic levels is considerably less. The amount of energy available
for the next trophic level is
.4 - ANSWER-There are_______________ different nitrogen bases found in DNA.
.74% T, 26% C - ANSWER-The Europeans' lactase persistence allele can be
labeled T and the alternative allele is C. These labels represent the nucleotide
bases at a particular location; the T allele is associated with lactase persistence.
Which item below shows the allele frequencies as they might be found in the
gene pool of a population?
.A
,T - ANSWER-According to the base pairing rules, RNA polymerase will add an
_____ to the growing strand of RNA if the DNA template has a _______.
.A drug that inhibits, or blocks, the action of PCSK9 - ANSWER-If the goal is to
lower LDL in blood, which kind of drug might be helpful?
.A food web - ANSWER-is appropriate for showing feeding relationships in
systems that include many species on each level and those that include many
omnivores
.A medication that blocks viral attachment by binding to viral proteins -
ANSWER-One approach for treating viral infections is to block attachment.
Theoretically, which treatment approach would be better?
.A moderate percentage of people will be lactase persistent, and many people
will be heterozygous for lactase persistence alleles. - ANSWER-What would you
predict about a population formed from the mixing of people from many
different cultures worldwide?
.A mutation in the gene for the light absorbing proteins - ANSWER-What is the
most likely cause of colorblindness?
.A nucleotide - ANSWER-includes a nitrogenous base, a 5-carbon sugar, and a
phosphate group.
.A segment of DNA is copied into RNA; the RNA is then used to build proteins. -
ANSWER-How does a gene produce proteins?
,.A) DNA → B) RNA → C) protein(trait) - ANSWER-the components of the Central
Dogma of Biology
.adaptations - ANSWER-Traits that are more favorable and promote survival
AND reproduction
.Adenine - ANSWER-pairs with thymine.
.Adenine, guanine
Cytosine
Adenine
Cytosine, guanine - ANSWER-These nitrogenous bases are found in DNA and
RNA. __________and __________are purine nitrogenous bases.
_____________is a pyrimidine nitrogenous base. ___________ bonds with
thymine (in DNA) and uracil (in RNA). ___________bonds with _____________.
.Adenine, guanine, cytosine - ANSWER-Both DNA and RNA contain similar bases.
Which bases do both types of nucleic acids contain in their nucleotides.
.Adhesion - ANSWER-water molecules binding to other molecules is
called________________
.Adhesion - ANSWER-When water binds to the walls of the cells, this is called
.Adhesion proteins - ANSWER-are found between cells
, .Adhesion proteins - ANSWER-bind cells together.
.All or most eukaryotes, including plants, animals, and fungi. - ANSWER-One of
the key enzymes in cellular respiration is cytochrome-c oxidase. What kinds of
organisms do you predict would have this enzyme in their cells?
.Allopatric speciation - ANSWER-means "different country." Due to different
environmental pressures in the different geological areas, species may form
through changes that do not allow them to breed or exchange individuals
between the populations.
.Amino acids - ANSWER-What units (monomers) make up a protein?
.An enzyme - ANSWER-In DNA replication in cells, DNA is separated by
.Antibiotics - ANSWER-may decrease the amount of healthy cells in the patient's
body.
.Antibodies - ANSWER-are proteins that mark disease causing pathogens for
destruction by white blood cells.
.Antibodies - ANSWER-IgA immunoglobulin, found in tears and saliva, fight
pathogens in the eyes and mouth
.Are hydrophobic - ANSWER-Why are lipids such a challenge to digest, absorb,
and transport in the blood? Lipids pose a special challenge because
they__________
