Introduction to Biology - WGU C190 Pre-Assessment
questions with verified answers
A biological polymer consists of 358 amino acids linked together covalently.
What is this polymer?
-a carbohydrate
-a protein
-a lipid
-a nucleic acid Ans✓✓✓-a protein
A cell has divided its chromosomes into two new nuclei. The cytoskeleton of the
cell is currently pinching the cell in the middle to form two new cells.
In which stage of the cell cycle is this cell?
-G1
-synthesis
-G2
-cytokinesis Ans✓✓✓-cytokinesis
A cell undergoing meiosis is currently dividing. The two new daughter cells will be
haploid, but the DNA they contain is still replicated. The homologous
chromosomes have separated and are ready to start the second division, but they
have not yet begun the second round of division.
,Which stage of the cell cycle is this cell in?
-Metaphase I
-Telophase I
-Metaphase II
-Telophase II Ans✓✓✓-Telophase I
A cutting is taken from a mature hydrangea plant with blue flowers. The cutting is
planted in acidic soil and produces red flowers.
What caused the flower color in this hydrangea cutting to change?
-The complete dominance at the allele coding for flower color
-The size of the cutting
-The unique genes present in the cutting
-An interaction between the genes and the soil Ans✓✓✓-An interaction between
the genes and the soil
A dog breeder mates two black Labrador retriever dogs. The breeder is surprised
by the offspring produced by this crossing. In addition to offspring with beautiful
black coats, there are dogs with brown, gray, and tan coats.
Which form of inheritance is this an example of?
-Polygenic
, -Dominant
-Codominant
-Incomplete Ans✓✓✓-Polygenic
A fly is heterozygous for wing length, carrying one allele for the dominant long-
winged appearance and one allele for the recessive short-winged appearance.
Which percentage of the fly's gametes will carry the short-winged allele?
-25%
-50%
-75%
-100% Ans✓✓✓-50%
A food web is illustrated below:
Which organism is a producer in this food web?
-Diatoms
-Shrimp
-Amphipods
-Tuna Ans✓✓✓-Diatoms
A gardener maintains a species of rose that produce either yellow flowers (the
dominant phenotype) or white flowers (the recessive phenotype). One day, the
questions with verified answers
A biological polymer consists of 358 amino acids linked together covalently.
What is this polymer?
-a carbohydrate
-a protein
-a lipid
-a nucleic acid Ans✓✓✓-a protein
A cell has divided its chromosomes into two new nuclei. The cytoskeleton of the
cell is currently pinching the cell in the middle to form two new cells.
In which stage of the cell cycle is this cell?
-G1
-synthesis
-G2
-cytokinesis Ans✓✓✓-cytokinesis
A cell undergoing meiosis is currently dividing. The two new daughter cells will be
haploid, but the DNA they contain is still replicated. The homologous
chromosomes have separated and are ready to start the second division, but they
have not yet begun the second round of division.
,Which stage of the cell cycle is this cell in?
-Metaphase I
-Telophase I
-Metaphase II
-Telophase II Ans✓✓✓-Telophase I
A cutting is taken from a mature hydrangea plant with blue flowers. The cutting is
planted in acidic soil and produces red flowers.
What caused the flower color in this hydrangea cutting to change?
-The complete dominance at the allele coding for flower color
-The size of the cutting
-The unique genes present in the cutting
-An interaction between the genes and the soil Ans✓✓✓-An interaction between
the genes and the soil
A dog breeder mates two black Labrador retriever dogs. The breeder is surprised
by the offspring produced by this crossing. In addition to offspring with beautiful
black coats, there are dogs with brown, gray, and tan coats.
Which form of inheritance is this an example of?
-Polygenic
, -Dominant
-Codominant
-Incomplete Ans✓✓✓-Polygenic
A fly is heterozygous for wing length, carrying one allele for the dominant long-
winged appearance and one allele for the recessive short-winged appearance.
Which percentage of the fly's gametes will carry the short-winged allele?
-25%
-50%
-75%
-100% Ans✓✓✓-50%
A food web is illustrated below:
Which organism is a producer in this food web?
-Diatoms
-Shrimp
-Amphipods
-Tuna Ans✓✓✓-Diatoms
A gardener maintains a species of rose that produce either yellow flowers (the
dominant phenotype) or white flowers (the recessive phenotype). One day, the
