BIO 214 FINAL EXAM STUDY GUIDE 2026
COMPREHENSIVE PRACTICE QUESTIONS
AND VERIFIED CORRECT ANSWERS WITH
DETAILED EXPLANATIONS COMPLETE
BIOLOGY 214 FINAL REVIEW, PRACTICE
TEST AND COLLEGE EXAM PREPARATION
RESOURCE
A parent has a genotype of RrYy. What is the probability of this individual
producing a gamete with the RY genotype? - CORRECT ANSWER -1/4
R is the dominant allele for a round pea, r is the recessive allele for a
wrinkled pea. If you cross plants having round peas with plants having
wrinkled peas, - CORRECT ANSWER -you will be able to determine if the
plant with round peas is homozygous or heterozygous
if your mother and father are both heterozygous for huntington's disease,
which is cause by a dominant allele, the odds of you having the disorder are
____ - CORRECT ANSWER -3/4
If your mother and father both have cystic fibrosis, which is caused by a
recessive allele, the odds of you inheriting only one allele for the disorder
are - CORRECT ANSWER -0
,Two snapdragons heterozygous for alleles that encode red and white flower
color are crossed. If the red and white alleles show incomplete dominance,
what will be the phenotypes and ratios of the F2 generation? - CORRECT
ANSWER -25% red, 50% pink, 25% white
If a woman has blood type O and a man has blood type AB, what is the
probability that they will have a child with blood type O? - CORRECT
ANSWER -0
the different alleles in human blood type are a demonstration of - CORRECT
ANSWER -dominance and codominance
in _____ genes at one locus mask the effect of genes at another locus -
CORRECT ANSWER -epistasis
the fact that a person who suffers from sickle cell anemia has symptoms like
pneumonia, heart and kidney failure, fatigue, and paralysis is an example of
____ - CORRECT ANSWER -pleiotrophy
linked genes are ___ - CORRECT ANSWER -genes that do not sort
independently because they are physically near each other on the same
chromosome
the principle of linkage and recombination were discovered using which
organism - CORRECT ANSWER -fruit flies
, when two genes on the same chromosome are located 10 map units from
each other, ____ of the offspring from a testcross for genetic linkage
should have a recombinant phenotype - CORRECT ANSWER -about 10%
when 2 genes are located on different chromosomes, ____ of the offspring
from a testcross for genetic linkage should have a recombinant phenotype -
CORRECT ANSWER -about 50%
in drosophila melanogaster, the gene for eye color is located on the X
chromosome. the allele for red eye color is (Xw+) us dominant over the
allele for white eye color (Xw). you examine a vial of 100 flies that are all
offspring from a single genetic cross. you see only red-eyed females present,
but both red eyed and white eyed males present. the genotypes of the
parents were - CORRECT ANSWER -Xw+Xw, Xw+Y
nondisjuction refer to the - CORRECT ANSWER -failure of homologous pair
or sister chromatids to seperate during meiosis
individuals with extra or missing copies of one or more chromosomes are
called - CORRECT ANSWER -aneuploids
an individual who is a carries of a genetically inherited disease - CORRECT
ANSWER -does not have the disease, but may have offspring with the
disease
For most multicellular eukaryotes, including humans, mitochondria are
inherited ____. - CORRECT ANSWER -only from the mother
COMPREHENSIVE PRACTICE QUESTIONS
AND VERIFIED CORRECT ANSWERS WITH
DETAILED EXPLANATIONS COMPLETE
BIOLOGY 214 FINAL REVIEW, PRACTICE
TEST AND COLLEGE EXAM PREPARATION
RESOURCE
A parent has a genotype of RrYy. What is the probability of this individual
producing a gamete with the RY genotype? - CORRECT ANSWER -1/4
R is the dominant allele for a round pea, r is the recessive allele for a
wrinkled pea. If you cross plants having round peas with plants having
wrinkled peas, - CORRECT ANSWER -you will be able to determine if the
plant with round peas is homozygous or heterozygous
if your mother and father are both heterozygous for huntington's disease,
which is cause by a dominant allele, the odds of you having the disorder are
____ - CORRECT ANSWER -3/4
If your mother and father both have cystic fibrosis, which is caused by a
recessive allele, the odds of you inheriting only one allele for the disorder
are - CORRECT ANSWER -0
,Two snapdragons heterozygous for alleles that encode red and white flower
color are crossed. If the red and white alleles show incomplete dominance,
what will be the phenotypes and ratios of the F2 generation? - CORRECT
ANSWER -25% red, 50% pink, 25% white
If a woman has blood type O and a man has blood type AB, what is the
probability that they will have a child with blood type O? - CORRECT
ANSWER -0
the different alleles in human blood type are a demonstration of - CORRECT
ANSWER -dominance and codominance
in _____ genes at one locus mask the effect of genes at another locus -
CORRECT ANSWER -epistasis
the fact that a person who suffers from sickle cell anemia has symptoms like
pneumonia, heart and kidney failure, fatigue, and paralysis is an example of
____ - CORRECT ANSWER -pleiotrophy
linked genes are ___ - CORRECT ANSWER -genes that do not sort
independently because they are physically near each other on the same
chromosome
the principle of linkage and recombination were discovered using which
organism - CORRECT ANSWER -fruit flies
, when two genes on the same chromosome are located 10 map units from
each other, ____ of the offspring from a testcross for genetic linkage
should have a recombinant phenotype - CORRECT ANSWER -about 10%
when 2 genes are located on different chromosomes, ____ of the offspring
from a testcross for genetic linkage should have a recombinant phenotype -
CORRECT ANSWER -about 50%
in drosophila melanogaster, the gene for eye color is located on the X
chromosome. the allele for red eye color is (Xw+) us dominant over the
allele for white eye color (Xw). you examine a vial of 100 flies that are all
offspring from a single genetic cross. you see only red-eyed females present,
but both red eyed and white eyed males present. the genotypes of the
parents were - CORRECT ANSWER -Xw+Xw, Xw+Y
nondisjuction refer to the - CORRECT ANSWER -failure of homologous pair
or sister chromatids to seperate during meiosis
individuals with extra or missing copies of one or more chromosomes are
called - CORRECT ANSWER -aneuploids
an individual who is a carries of a genetically inherited disease - CORRECT
ANSWER -does not have the disease, but may have offspring with the
disease
For most multicellular eukaryotes, including humans, mitochondria are
inherited ____. - CORRECT ANSWER -only from the mother
