BIOL CH 14 Questions and Answers Rated A
A man who can roll his tongue and a woman who genes that were located near each other on the
cannot roll her tongue have a son who can roll same chromosome, then the F2 generation
his tongue (R = can roll tongue; r = can't roll __________. - ANSWERS - would have
tongue). The son is curious about whether his deviated from the 9:3:3:1 phenotypic ratio that is
father is homozygous or heterozygous for the predicted by the law of independent assortment
tongue-rolling trait. Which of the following facts
would allow him to know? - ANSWERS -
His father's mother cannot roll her tongue. An alternative version of a gene is called a(n)
__________. - ANSWERS - allele
In humans, height and skin color have
continuous variation in the population because of The F1 generation differed from the F2 in
__________. - ANSWERS - polygenic Mendel's experiments in that __________. -
inheritance ANSWERS - all of the F1 showed the
dominant phenotype, but only three-fourths of the
F2 did
Human ABO groups are best described as an
example of __________. - ANSWERS -
multiple alleles Which choice below is a basic difference
between Mendel's particulate hypothesis and the
hypothesis of blending inheritance? -
Achondroplasia, a type of dwarfism, and ANSWERS - The blending inheritance
Huntington's disease are examples of hypothesis, but not the particulate hypothesis,
__________, with the exception that the maintained that after a mating, the genetic
Huntington's allele is __________. - material provided by each of the two parents is
ANSWERS - dominant inherited disorders; mixed in the offspring, losing its individual
lethal identity.
Human blood groups are governed by three What kind of protection does the Genetic
alleles, IA, IB, and i. IA and IB are codominant Information Nondiscrimination Act of 2008
and i is recessive to both. A man who has type B provide the public with regard to the use of
blood and a woman who has type A blood could genetic information? - ANSWERS - The law
have children of which of the following prohibits the use of genetic test information to
phenotypes? - ANSWERS - A, B, AB, or O deny insurance coverage or employment to
individuals.
Mendel studied __________, heritable features
that vary among individuals; each variant is Mendel's law of segregation states that
called a __________. - ANSWERS - __________. - ANSWERS - the two alleles
characters; trait for a heritable character segregate (separate
from each other) during gamete formation and
end up in different gametes
If the two traits that Mendel looked at in his
dihybrid cross of smooth yellow peas with
wrinkled green peas had been controlled by If an organism that is homozygous dominant is
1/6
, BIOL CH 14 Questions and Answers Rated A
crossed with a heterozygote for that trait, the wwYy? - ANSWERS - yellow
offspring will be __________. -
ANSWERS - all of the dominant phenotype
Pea plants are tall if they have the genotype TT
or Tt, and they are short if they have genotype tt.
If a heterozygous plant is allowed to self- A tall plant is mated with a short plant. Which
pollinate, what proportion of the offspring will also outcome below would indicate that the tall parent
be heterozygous? - ANSWERS - 1/2 plant was heterozygous? - ANSWERS -
The ratio of tall offspring to short offspring is 1:1.
In people with sickle-cell disease, red blood cells
break down, clump, and clog the blood vessels. In addition to the ABO system, humans have
The blood vessels and the broken cells other blood groups, including the MN system.
accumulate in the spleen. Among other things Individuals who have alleles for both M and N
this leads to physical weakness, heart failure, show __________ for the M and N red blood cell
joint pain, and brain damage. Such a suite of surface antigens. - ANSWERS -
symptoms can be explained by __________. - codominance
ANSWERS - the pleiotropic effects of the
sickle-cell allele
Fetal cells may be removed along with fluid from
the womb by a process known as __________. -
In incomplete dominance, the offspring ANSWERS - amniocentesis
__________. - ANSWERS - will have an
appearance that's intermediate between those of
the two parental types The effect of the environment on a phenotype is
referred to as __________. - ANSWERS -
multifactorial
The term "true-breeding plants" means
__________. - ANSWERS - that self-
pollinating plants will always produce the same Huntington's disease is an example of a genetic
trait of a particular character disorder caused by __________. -
ANSWERS - a lethal dominant allele that
afflicts an individual later in life
A red bull is crossed with a white cow and all of
the offspring are roan, an intermediate color that
is caused by the presence of both red and white In Labrador retrievers, a dog that has the
hairs. This is an example of genes that are genotype BBee, where BB produces black-
__________. - ANSWERS - codominant pigmented fur and ee produces yellow-pigmented
fur, would have __________ fur and would
exhibit __________. - ANSWERS - yellow;
Color in squash is controlled by epistatic epistasis
interactions in which color is recessive to no
color. At the first locus white squash (W) is
dominant to colored squash (w). At the second If a plant variety is true-breeding for a dominant
locus yellow (Y) is dominant to green (y). What is trait, then __________. - ANSWERS - if the
the phenotype of a squash with the genotype
2/6
A man who can roll his tongue and a woman who genes that were located near each other on the
cannot roll her tongue have a son who can roll same chromosome, then the F2 generation
his tongue (R = can roll tongue; r = can't roll __________. - ANSWERS - would have
tongue). The son is curious about whether his deviated from the 9:3:3:1 phenotypic ratio that is
father is homozygous or heterozygous for the predicted by the law of independent assortment
tongue-rolling trait. Which of the following facts
would allow him to know? - ANSWERS -
His father's mother cannot roll her tongue. An alternative version of a gene is called a(n)
__________. - ANSWERS - allele
In humans, height and skin color have
continuous variation in the population because of The F1 generation differed from the F2 in
__________. - ANSWERS - polygenic Mendel's experiments in that __________. -
inheritance ANSWERS - all of the F1 showed the
dominant phenotype, but only three-fourths of the
F2 did
Human ABO groups are best described as an
example of __________. - ANSWERS -
multiple alleles Which choice below is a basic difference
between Mendel's particulate hypothesis and the
hypothesis of blending inheritance? -
Achondroplasia, a type of dwarfism, and ANSWERS - The blending inheritance
Huntington's disease are examples of hypothesis, but not the particulate hypothesis,
__________, with the exception that the maintained that after a mating, the genetic
Huntington's allele is __________. - material provided by each of the two parents is
ANSWERS - dominant inherited disorders; mixed in the offspring, losing its individual
lethal identity.
Human blood groups are governed by three What kind of protection does the Genetic
alleles, IA, IB, and i. IA and IB are codominant Information Nondiscrimination Act of 2008
and i is recessive to both. A man who has type B provide the public with regard to the use of
blood and a woman who has type A blood could genetic information? - ANSWERS - The law
have children of which of the following prohibits the use of genetic test information to
phenotypes? - ANSWERS - A, B, AB, or O deny insurance coverage or employment to
individuals.
Mendel studied __________, heritable features
that vary among individuals; each variant is Mendel's law of segregation states that
called a __________. - ANSWERS - __________. - ANSWERS - the two alleles
characters; trait for a heritable character segregate (separate
from each other) during gamete formation and
end up in different gametes
If the two traits that Mendel looked at in his
dihybrid cross of smooth yellow peas with
wrinkled green peas had been controlled by If an organism that is homozygous dominant is
1/6
, BIOL CH 14 Questions and Answers Rated A
crossed with a heterozygote for that trait, the wwYy? - ANSWERS - yellow
offspring will be __________. -
ANSWERS - all of the dominant phenotype
Pea plants are tall if they have the genotype TT
or Tt, and they are short if they have genotype tt.
If a heterozygous plant is allowed to self- A tall plant is mated with a short plant. Which
pollinate, what proportion of the offspring will also outcome below would indicate that the tall parent
be heterozygous? - ANSWERS - 1/2 plant was heterozygous? - ANSWERS -
The ratio of tall offspring to short offspring is 1:1.
In people with sickle-cell disease, red blood cells
break down, clump, and clog the blood vessels. In addition to the ABO system, humans have
The blood vessels and the broken cells other blood groups, including the MN system.
accumulate in the spleen. Among other things Individuals who have alleles for both M and N
this leads to physical weakness, heart failure, show __________ for the M and N red blood cell
joint pain, and brain damage. Such a suite of surface antigens. - ANSWERS -
symptoms can be explained by __________. - codominance
ANSWERS - the pleiotropic effects of the
sickle-cell allele
Fetal cells may be removed along with fluid from
the womb by a process known as __________. -
In incomplete dominance, the offspring ANSWERS - amniocentesis
__________. - ANSWERS - will have an
appearance that's intermediate between those of
the two parental types The effect of the environment on a phenotype is
referred to as __________. - ANSWERS -
multifactorial
The term "true-breeding plants" means
__________. - ANSWERS - that self-
pollinating plants will always produce the same Huntington's disease is an example of a genetic
trait of a particular character disorder caused by __________. -
ANSWERS - a lethal dominant allele that
afflicts an individual later in life
A red bull is crossed with a white cow and all of
the offspring are roan, an intermediate color that
is caused by the presence of both red and white In Labrador retrievers, a dog that has the
hairs. This is an example of genes that are genotype BBee, where BB produces black-
__________. - ANSWERS - codominant pigmented fur and ee produces yellow-pigmented
fur, would have __________ fur and would
exhibit __________. - ANSWERS - yellow;
Color in squash is controlled by epistatic epistasis
interactions in which color is recessive to no
color. At the first locus white squash (W) is
dominant to colored squash (w). At the second If a plant variety is true-breeding for a dominant
locus yellow (Y) is dominant to green (y). What is trait, then __________. - ANSWERS - if the
the phenotype of a squash with the genotype
2/6
