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Genetics
BIO 273 Final Exam
13
Biology
Undergraduate 2
05/18/2010

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Term
In prokaryotes, replication usually begins at a specific place on the chromosome called the origin of replication. (T/F)
Definition
True
Term
Cellular reproduction (sexual and asexual) requires that
A) the genetic material is copied.
B) the copies of the genetic material separate.
C) cell division occurs.
D) all of the above
E) A and C only
Definition
D
Term
Mitosis leads to the production of two cells with the same number of chromosomes as the parental cell, while
meiosis leads to the production of gametes with half the chromosome number as the parental cell. (T/F)
Definition
True
Term
The following cross is conducted: round seeds (male) x wrinkled seeds (female). Which answer below describes
a reciprocal cross ?
A) The original cross, round seeds (male) x wrinkled seeds (female), is repeated.
B) round seeds (female) x wrinkled seeds (male)
C) A simultaneous cross of round seeds (male) x round seeds (female) and round seeds (female) x round
seeds (female)
D) none of the above
Definition
B
Term
Phenotype, defined as the appearance or manifestation of a character, results from ones genotype within a
particular environment.
Definition
True
Term
Sister chromatids are replicated chromosomes with identical alleles.
Definition
True
Term
One of the seven characteristics that Mendel studied in peas was height (tall is dominant over short). What did
Mendel find when he crossed a homozygous tall plant with a homozygous short plant?
A) Half of the the F1 offspring were tall and half were short.
B) 3/4 of the the F1 offspring were tall and 1/4 were short.
C) All the F1 offspring were tall.
D) All the F1 offspring were short.
Definition
C
Term
Plant cells contain three organelles with genetic material, while animal cells contain only two organelles with
genetic material.
Definition
True
Term
Which of the following is (are) an example(s) of basic research?
A) Understanding the process of DNA replication.
B) Development of bacteria that clean up an oil spill.
C) Production of human growth hormone in E. coli cells.
D) all of the above
E) B and C only.
Definition
A
Term
For a model organism to be considered suitable for genetic studies it should
A) produce a limited number of offspring.
B) have a short life cycle.
C) be easy to handle.
D) all of the above
E) B and C only
Definition
E
Term
Haploid organisms possess homologous chromosomes with identical loci and centromere locations.
Definition
False
Term
Which of the following statements is false?
A) Prokaryotes carry out asexual reproduction using mitosis.
B) Eukaryotes have membrane bound organelles.
C) All viruses contain a protein coat that surrounds the genetic material (DNA or RNA)
D) None of the statements are false.
Definition
A
Term
Which of the following represents the genotype of a pea plant heterozygous for seed shape?
A) R2 B) Rr C) rr D) RR
Definition
B
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