BIOL 207 MIDTERM 1 PREP UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Which definition best describes a genome?
a.A complete set of genetic material found in a somatic cell
b.The sum of all genes in a cell
c. The sum of all coding genes in a cell
d. The sum of all expressed genes in a cell
e. The haploid set of genetic material in a germ cell - CORRECT ANSWER - a.A
complete set of genetic material found in a somatic cell
What are some differences between genes and traits? (more than one answer)
a.Genes result from an interaction of traits and the environment
b.Traits result from an interaction of genes and the environment
c.Traits are inherited, genes are not
d.Gene is a heritable trait
e.Genes are inherited, traits are not - CORRECT ANSWER - b.Traits result from an
interaction of genes and the environment
e.Genes are inherited, traits are not
All organisms share a common coding system for their genomic information. The common
features of heredity imply all of the following EXCEPT
a.Genes from one organism will often function in another organism.
b.The study of one organism's genes often reveals principles that apply to other organisms.
c.All organisms will have a similar number of genes.
, d.All life forms on Earth share a common ancestor. - CORRECT ANSWER - c.All
organisms will have a similar number of genes.
August Weismann cut off the tails of mice for 22 consecutive generations, yet in each generation
all the descendants were born with long tails. His experiment demonstrated that
a.Acquired characteristics are not heritable.
b.The mice must have produced "tail gemmules" before their tails were cut off.
c.Sex cells carry an incomplete set of genetic information that is passed to offspring.
d.Tail length is not genetically determined. - CORRECT ANSWER - a.Acquired
characteristics are not heritable.
Before the chemical nature of genetic material was known, scientists knew that genetic material
must do or be all of the following EXCEPT
a.Encode the phenotype.
b.Replicate faithfully.
c.Have the ability to vary.
d.Be capable of storing large amounts of information.
e.Be composed of many different chemical units to account for the variability seen in nature. -
CORRECT ANSWER - e.Be composed of many different chemical units to account for
the variability seen in nature.
Suppose that Hershey and Chase found that phage "ghosts" (phage shells after injection of
genetic material) contained 32P label but the label was absent from infected E. coli. Furthermore,
suppose they found 35S lacking in the ghosts and present in the infected E. coli. They would
have concluded that
a.Protein was the genetic material in phage.
b.Protein and DNA together made up the genetic material.
c.The radioactivity damaged and mutated the DNA.
ACTUAL Exam Questions and CORRECT
Answers
Which definition best describes a genome?
a.A complete set of genetic material found in a somatic cell
b.The sum of all genes in a cell
c. The sum of all coding genes in a cell
d. The sum of all expressed genes in a cell
e. The haploid set of genetic material in a germ cell - CORRECT ANSWER - a.A
complete set of genetic material found in a somatic cell
What are some differences between genes and traits? (more than one answer)
a.Genes result from an interaction of traits and the environment
b.Traits result from an interaction of genes and the environment
c.Traits are inherited, genes are not
d.Gene is a heritable trait
e.Genes are inherited, traits are not - CORRECT ANSWER - b.Traits result from an
interaction of genes and the environment
e.Genes are inherited, traits are not
All organisms share a common coding system for their genomic information. The common
features of heredity imply all of the following EXCEPT
a.Genes from one organism will often function in another organism.
b.The study of one organism's genes often reveals principles that apply to other organisms.
c.All organisms will have a similar number of genes.
, d.All life forms on Earth share a common ancestor. - CORRECT ANSWER - c.All
organisms will have a similar number of genes.
August Weismann cut off the tails of mice for 22 consecutive generations, yet in each generation
all the descendants were born with long tails. His experiment demonstrated that
a.Acquired characteristics are not heritable.
b.The mice must have produced "tail gemmules" before their tails were cut off.
c.Sex cells carry an incomplete set of genetic information that is passed to offspring.
d.Tail length is not genetically determined. - CORRECT ANSWER - a.Acquired
characteristics are not heritable.
Before the chemical nature of genetic material was known, scientists knew that genetic material
must do or be all of the following EXCEPT
a.Encode the phenotype.
b.Replicate faithfully.
c.Have the ability to vary.
d.Be capable of storing large amounts of information.
e.Be composed of many different chemical units to account for the variability seen in nature. -
CORRECT ANSWER - e.Be composed of many different chemical units to account for
the variability seen in nature.
Suppose that Hershey and Chase found that phage "ghosts" (phage shells after injection of
genetic material) contained 32P label but the label was absent from infected E. coli. Furthermore,
suppose they found 35S lacking in the ghosts and present in the infected E. coli. They would
have concluded that
a.Protein was the genetic material in phage.
b.Protein and DNA together made up the genetic material.
c.The radioactivity damaged and mutated the DNA.
