WGU C652 Final Exam (Latest 2024/ 2025 Update)
Genetics and Heredity| Prep Questions and Verified
Answers| 100% Correct| Grade A
During an experiment, a scientist crosses a pea plant that has purple flowers with a
pea plant that has white flowers. The plants that result from this cross in the F1
generation have both purple and white flowers. What can the scientist conclude? -
ANSWERc.
The plants in the P generation were not true-breeding.
A scientist wants to examine a genetic disease in humans. The scientist hypothesizes
that the disease can be treated by using gene therapy. Humans take a long time to
reproduce and develop, so the scientist will have to - ANSWERc.
develop new methods to test the hypothesis.
What is a gene? - ANSWERd.
a section of DNA that codes for a specific trait
Tall pea plants are dominant over short pea plants. If there are 200 short plants in
the F2 generation from a cross that followed Mendel's methods, about how many
plants will be tall in that generation? - ANSWERc.
600
What controls traits and inheritance? - ANSWERb.
nucleic acids
Scientists often use fruit flies as a method to test hypotheses about human genes.
Why are fruit flies advantageous in the study of human inheritance? - ANSWERd.
They reproduce quickly and take up little space.
The table below summarizes Mendel's results for the F2 generation.
What number should replace the letter x in the "Seed color" row? - ANSWERd.
2,001
Which statement best describes an understanding of genetics that would be missing
without the work of Mendel? - ANSWERc.
Some alleles are dominant, and some alleles are recessive.
Which statement describes the offspring of the F1 generation when crossing a pea
plant that is true breeding for green seeds with a pea plant that is true breeding for
yellow seeds? - ANSWERb.
The offspring will inherit one gene from each parent.
Which statement describes Mendel's hypotheses regarding gametes? - ANSWERb.
A gamete carries one allele for a gene.
, When plants that are heterozygous for round seeds are crossed, what is the
probability that the offspring will have wrinkled seeds? - ANSWERa.
25 percent
Why did Mendel study pea plants? - ANSWERd.
They reproduce sexually and have many traits that are easy to observe.
The diagram represents one of Mendel's laws or principles of inheritance.
Which law or principle does the diagram represent? - ANSWERc.
segregation
Each kernel of corn on a single ear can inherit a different set of alleles from those
inherited by other kernels. This characteristic makes corn a useful example of which
law or principle? - ANSWERb.
law of independent assortment
Parents that are heterozygous for having freckles (dominant) are crossed. Which
represents the ratio of their offspring? - ANSWERc.
Seventy-five percent have freckles.
Which statement summarizes the law of segregation? - ANSWERc.
Gametes carry one allele for each trait.
Which of Mendel's laws or principles explains that traits are passed from parents to
offspring individually instead of as pairs, groups, or sets? - ANSWERb.
the law of independent assortment
The concept of evolution by way of natural selection is a central tenet in biology that
has been tested in numerous ways by many scientists but is not yet considered a
law. Evolution by way of natural selection is most likely which type of concept? -
ANSWERa.
a hypothesis that can be accepted as true based on repeated experimentation with
similar results
A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant
that has wrinkled seeds and the genotype rr. What is the probability that the
offspring will have wrinkled seeds? - ANSWERc.
50 percent
Which type of scientific statement is defined as "a possible explanation or answer to
a scientific question that is based on prior knowledge or research and is testable"? -
ANSWERa.
hypothesis
Why did Gregor Mendel study pea plants? - ANSWERd.
they reproduce sexually
Genetics and Heredity| Prep Questions and Verified
Answers| 100% Correct| Grade A
During an experiment, a scientist crosses a pea plant that has purple flowers with a
pea plant that has white flowers. The plants that result from this cross in the F1
generation have both purple and white flowers. What can the scientist conclude? -
ANSWERc.
The plants in the P generation were not true-breeding.
A scientist wants to examine a genetic disease in humans. The scientist hypothesizes
that the disease can be treated by using gene therapy. Humans take a long time to
reproduce and develop, so the scientist will have to - ANSWERc.
develop new methods to test the hypothesis.
What is a gene? - ANSWERd.
a section of DNA that codes for a specific trait
Tall pea plants are dominant over short pea plants. If there are 200 short plants in
the F2 generation from a cross that followed Mendel's methods, about how many
plants will be tall in that generation? - ANSWERc.
600
What controls traits and inheritance? - ANSWERb.
nucleic acids
Scientists often use fruit flies as a method to test hypotheses about human genes.
Why are fruit flies advantageous in the study of human inheritance? - ANSWERd.
They reproduce quickly and take up little space.
The table below summarizes Mendel's results for the F2 generation.
What number should replace the letter x in the "Seed color" row? - ANSWERd.
2,001
Which statement best describes an understanding of genetics that would be missing
without the work of Mendel? - ANSWERc.
Some alleles are dominant, and some alleles are recessive.
Which statement describes the offspring of the F1 generation when crossing a pea
plant that is true breeding for green seeds with a pea plant that is true breeding for
yellow seeds? - ANSWERb.
The offspring will inherit one gene from each parent.
Which statement describes Mendel's hypotheses regarding gametes? - ANSWERb.
A gamete carries one allele for a gene.
, When plants that are heterozygous for round seeds are crossed, what is the
probability that the offspring will have wrinkled seeds? - ANSWERa.
25 percent
Why did Mendel study pea plants? - ANSWERd.
They reproduce sexually and have many traits that are easy to observe.
The diagram represents one of Mendel's laws or principles of inheritance.
Which law or principle does the diagram represent? - ANSWERc.
segregation
Each kernel of corn on a single ear can inherit a different set of alleles from those
inherited by other kernels. This characteristic makes corn a useful example of which
law or principle? - ANSWERb.
law of independent assortment
Parents that are heterozygous for having freckles (dominant) are crossed. Which
represents the ratio of their offspring? - ANSWERc.
Seventy-five percent have freckles.
Which statement summarizes the law of segregation? - ANSWERc.
Gametes carry one allele for each trait.
Which of Mendel's laws or principles explains that traits are passed from parents to
offspring individually instead of as pairs, groups, or sets? - ANSWERb.
the law of independent assortment
The concept of evolution by way of natural selection is a central tenet in biology that
has been tested in numerous ways by many scientists but is not yet considered a
law. Evolution by way of natural selection is most likely which type of concept? -
ANSWERa.
a hypothesis that can be accepted as true based on repeated experimentation with
similar results
A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant
that has wrinkled seeds and the genotype rr. What is the probability that the
offspring will have wrinkled seeds? - ANSWERc.
50 percent
Which type of scientific statement is defined as "a possible explanation or answer to
a scientific question that is based on prior knowledge or research and is testable"? -
ANSWERa.
hypothesis
Why did Gregor Mendel study pea plants? - ANSWERd.
they reproduce sexually
