ASU BIO 340- Genetics Exam 1 Study Material (Combined)
Questions With Complete Solutions
3:1 Ratio Correct Answers 3:1 ratio of phenotype
1:2:1 ratio of genotype
9:3:3:1 ratio Correct Answers For dihybrid cross
A 1:2:1 ratio is a characteristic of a cross between Correct
Answers A cross between two heterozygous individuals for.
Ratio is for pheno and geno, including co and incomplete
dominance
A child who is blood type A has a mother who is blood type B.
In a paternity suit, a man is accused of being the father. He also
has blood type B. Could he be the father? Correct Answers No
A dihybrid cross results in what ratio? Correct Answers 9:3:3:1
ratio
A man and woman have dark eyes, dark hair, and freckles. The
genes for these traits assort independently. The woman is
heterozygous for each of these traits, but the man is
homozygous. The dominance relationship for these alleles are:
B= dark eyes; b= blue eyes
H= dark hair; h= blond hair
F= freckles; f= no freckles
What is the probability that the child will share the same
genotype as the father? Correct Answers 1/8
,A man and woman have dark eyes, dark hair, and freckles. The
genes for these traits assort independently. The woman is
heterozygous for each of these traits, but the man is
homozygous. The dominance relationship for these alleles are:
B= dark eyes; b= blue eyes
H= dark hair; h= blond hair
F= freckles; f= no freckles
What is the probability that their child will share the parents'
genotype? Correct Answers 1/1 (100%)
A map unit Correct Answers is a relative term for a relative
distance. It represents different amounts of DNA in different
species.
A pure breeding line of green pod pea plants is crossed with a
pure-breeding line of yellow pod pea plants. All of their
offspring have green pods. From this information it can be stated
that green color is _____ to the yellow color. Correct Answers
dominant
A research study showed that attached earlobes are incompletely
penetrant. Out of 65 people who have the genotype, only 40
people have the phenotype. What is the percent penetrance for
having attached earlobes? Correct Answers 61.5%
A tall purple plant that is heterozygous at both loci is crossed
with a homozygous recessive short, white plant. What is the
probability of obtaining a tall white plant? Correct Answers 1/4
A tall purple plant that is heterozygous at both loci is crossed
with a homozygous recessive short, white plant. What is the
, probability of obtaining either a tall white plant or a short purple
plant? Correct Answers 1/2
Allele Correct Answers An alternate form of a gene.
Allele Correct Answers One of 2+ alternative forms of gene
resulting from mutation and occupying the same locus in
particular chromosome
Alleles are: Correct Answers alterante forms of a gene
An individual with type A blood and an individual with type B
blood mate and have offspring. What blood type is not possible
in their offspring? Correct Answers All blood types are
possible
An XXY chromosome produces ________ development in
humans, whereas XO chromosome constitution produces
_________ Correct Answers male; female
autosomal Correct Answers on a chromosome which is not a
sex-chromosome
Autosomal Dominant Inheritance Correct Answers Only on
copy of the abnormal gene is required for individual to be
affected
Autosomal inheritance Correct Answers Transmission of traits
carried on autosomes, which are chromosomes found in both
males and females
Questions With Complete Solutions
3:1 Ratio Correct Answers 3:1 ratio of phenotype
1:2:1 ratio of genotype
9:3:3:1 ratio Correct Answers For dihybrid cross
A 1:2:1 ratio is a characteristic of a cross between Correct
Answers A cross between two heterozygous individuals for.
Ratio is for pheno and geno, including co and incomplete
dominance
A child who is blood type A has a mother who is blood type B.
In a paternity suit, a man is accused of being the father. He also
has blood type B. Could he be the father? Correct Answers No
A dihybrid cross results in what ratio? Correct Answers 9:3:3:1
ratio
A man and woman have dark eyes, dark hair, and freckles. The
genes for these traits assort independently. The woman is
heterozygous for each of these traits, but the man is
homozygous. The dominance relationship for these alleles are:
B= dark eyes; b= blue eyes
H= dark hair; h= blond hair
F= freckles; f= no freckles
What is the probability that the child will share the same
genotype as the father? Correct Answers 1/8
,A man and woman have dark eyes, dark hair, and freckles. The
genes for these traits assort independently. The woman is
heterozygous for each of these traits, but the man is
homozygous. The dominance relationship for these alleles are:
B= dark eyes; b= blue eyes
H= dark hair; h= blond hair
F= freckles; f= no freckles
What is the probability that their child will share the parents'
genotype? Correct Answers 1/1 (100%)
A map unit Correct Answers is a relative term for a relative
distance. It represents different amounts of DNA in different
species.
A pure breeding line of green pod pea plants is crossed with a
pure-breeding line of yellow pod pea plants. All of their
offspring have green pods. From this information it can be stated
that green color is _____ to the yellow color. Correct Answers
dominant
A research study showed that attached earlobes are incompletely
penetrant. Out of 65 people who have the genotype, only 40
people have the phenotype. What is the percent penetrance for
having attached earlobes? Correct Answers 61.5%
A tall purple plant that is heterozygous at both loci is crossed
with a homozygous recessive short, white plant. What is the
probability of obtaining a tall white plant? Correct Answers 1/4
A tall purple plant that is heterozygous at both loci is crossed
with a homozygous recessive short, white plant. What is the
, probability of obtaining either a tall white plant or a short purple
plant? Correct Answers 1/2
Allele Correct Answers An alternate form of a gene.
Allele Correct Answers One of 2+ alternative forms of gene
resulting from mutation and occupying the same locus in
particular chromosome
Alleles are: Correct Answers alterante forms of a gene
An individual with type A blood and an individual with type B
blood mate and have offspring. What blood type is not possible
in their offspring? Correct Answers All blood types are
possible
An XXY chromosome produces ________ development in
humans, whereas XO chromosome constitution produces
_________ Correct Answers male; female
autosomal Correct Answers on a chromosome which is not a
sex-chromosome
Autosomal Dominant Inheritance Correct Answers Only on
copy of the abnormal gene is required for individual to be
affected
Autosomal inheritance Correct Answers Transmission of traits
carried on autosomes, which are chromosomes found in both
males and females
