TEST BANK FOR GENETICS A
CONCEPTUAL APPROACH 5TH EDITION
PIERCE / ALL CHAPTERS 1 - 26 / FULL
COMPLETE 2023 QUESTIONS AND 100%
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,
,What is true of comparing a genetic map to a physical map for a chromosome On a genetic map, the
region between two neighboring genes cannot exceed 50.
The region near the centromere will be larger on a physical map than on a genetic map.
Piebald syndrome Can cause both mice and humans to have the same white patch on their
stomach and forehead resulting from a mutation in the same gene
Transduction A virus carries genes from one bacterium to another
Conjugation Two bacteria next to each other share information
Transformation DNA present in the medium is taken up by the bacteria
True or False: Temperate phages can undergo either the lytic or lysogenic cycle True
True of False: There are no transposable elements (also known as transposons or jumping genes) in the
human genome False
If a tRNA sequence is 5' GGC 3', what is the corresponding DNA sequence on the template strand?
5' GGC 3'
*tRNA is the same as template strand of DNA*
The anticodon 5' GGC 3' corresponds to which amino acid? Alanine
True or False: Polyploidy is the presence of one or more chromosomes False
Polyploid facts: Many 3N fruits are seedless - odd ploidy numbers cause the formation of unbalanced
gametes during meiosis.
Autopolyploids can occur during meiosis or mitosis.
Alloploidy form a hybrid species because chromosomes from 2 species come together.
What is the function of helicase? It is an enzyme that unzips DNA during DNA replication
True or False: Human aneuoploids can be detected through a karotype. True
True or False: Fragile X syndrome is caused by a CGG repeat. True
True or False: Fragile X syndrome would show a pedigree like that of Huntington Disease. False
True or False: Fragile X syndrome has fragile sites that are heavily acetylated. False
If the sequence of an RNA molecule is 5'-GGCAUCGACG-3', what is the sequence of the nontemplate
strand of DNA? 5'-GGCATCGACG-3'
The R locus determines flower color in a new plant species. Plants that are genotype RR have red
flowers, and plants that are rr have white flowers. However, Rr plants have pink flowers. What type of
inheritance does this demonstrate for flower color in these plants? incomplete dominance
Interactions among the human ABO blood group alleles involve _____ and _____. codominance;
complete dominance
, In the endangered African watchamakallit, the offspring of a true-breeding black parent and a true-
breeding white parent are all gray. When the gray offspring are crossed among themselves, their
offspring occur in a ratio of 1 black : 2 gray : 1 white. Upon close examination of the coats, each hair of a
gray animal is gray. What is the mode of inheritance? one gene pair with incomplete dominance
Suppose that extra fingers and toes are caused by a recessive trait, but it appears in only 60% of
homozygous recessive individuals. Two heterozygotes conceive a child. What is the probability that this
child will have extra fingers and toes? 0.15
Polydactyly is the condition of having extra fingers or toes. Some polydactylous persons possess extra
fingers or toes that are fully functional, whereas others possess only a small tag of extra skin. This is an
example of: variable expressivity
A mother of blood type A gives birth to a child with blood type O. Which of the following could NOT be
the blood type of the father? AB
Achondroplasia is a common cause of dwarfism in humans. All individuals with achondroplasia are
thought to be heterozygous at the locus that controls this trait. When two individuals with
achondroplasia mate, the offspring occur in a ratio of 2 achondroplasia: 1 normal. What is the MOST
likely explanation for these observations? The allele that causes achondroplasia is a recessive
lethal allele.
Crossing two yellow mice results in 2/3 yellow offspring and 1/3 nonyellow offspring. What percentage
of offspring would you expect to be nonyellow if you crossed two nonyellow mice? 100%
In humans, blood types A and B are codominant to each other and each is dominant to O. What blood
types are possible among the offspring of a couple of blood types AB and A? A, B, and AB only
You are studying body color in an African spider and have found that it is controlled by a single gene
with four alleles: B (brown), br (red), bg (green), and by (yellow). B is dominant to all the other alleles,
and by is recessive to all the other alleles. The bg allele is dominant to by but recessive to br. You cross a
pure-breeding brown spider with a pure-breeding green spider. Predict the genotype of the progeny.
B.bg
Most activators stimulate mRNA synthesis by binding to the Enhancers
What is the theoretical minimum number of different tRNAs required by a cell? 20 - one for each amino
acid
How are Hfr strains of bacteria different from F+ strains? The F factor is integrated into the
bacterial chromosome in an Hfr strain
What role do acetyltransferase play in the acetylation of histones? Acetyltransferase are enzymes
that add acetyl groups
True or False: Radiation from X rays causes T-T dimers to form in DNA because of its high energy, this
leads to frameshift mutations. False
True or False: A fruit that is 7N will most likely be larger than a 2N fruit. True
CONCEPTUAL APPROACH 5TH EDITION
PIERCE / ALL CHAPTERS 1 - 26 / FULL
COMPLETE 2023 QUESTIONS AND 100%
COMPLETE ANSWERS WITH
RATIONALES VERIFIED AND WELL
EXPLAINED BY EXPERTS GRADED A+
ALREADY PASSED!!!!WITH 100%
GUARANTEED SUCCESS AFTER
DOWNLOAD (ALL YOU NEED TO PASS
YOUR EXAMS)
,
,What is true of comparing a genetic map to a physical map for a chromosome On a genetic map, the
region between two neighboring genes cannot exceed 50.
The region near the centromere will be larger on a physical map than on a genetic map.
Piebald syndrome Can cause both mice and humans to have the same white patch on their
stomach and forehead resulting from a mutation in the same gene
Transduction A virus carries genes from one bacterium to another
Conjugation Two bacteria next to each other share information
Transformation DNA present in the medium is taken up by the bacteria
True or False: Temperate phages can undergo either the lytic or lysogenic cycle True
True of False: There are no transposable elements (also known as transposons or jumping genes) in the
human genome False
If a tRNA sequence is 5' GGC 3', what is the corresponding DNA sequence on the template strand?
5' GGC 3'
*tRNA is the same as template strand of DNA*
The anticodon 5' GGC 3' corresponds to which amino acid? Alanine
True or False: Polyploidy is the presence of one or more chromosomes False
Polyploid facts: Many 3N fruits are seedless - odd ploidy numbers cause the formation of unbalanced
gametes during meiosis.
Autopolyploids can occur during meiosis or mitosis.
Alloploidy form a hybrid species because chromosomes from 2 species come together.
What is the function of helicase? It is an enzyme that unzips DNA during DNA replication
True or False: Human aneuoploids can be detected through a karotype. True
True or False: Fragile X syndrome is caused by a CGG repeat. True
True or False: Fragile X syndrome would show a pedigree like that of Huntington Disease. False
True or False: Fragile X syndrome has fragile sites that are heavily acetylated. False
If the sequence of an RNA molecule is 5'-GGCAUCGACG-3', what is the sequence of the nontemplate
strand of DNA? 5'-GGCATCGACG-3'
The R locus determines flower color in a new plant species. Plants that are genotype RR have red
flowers, and plants that are rr have white flowers. However, Rr plants have pink flowers. What type of
inheritance does this demonstrate for flower color in these plants? incomplete dominance
Interactions among the human ABO blood group alleles involve _____ and _____. codominance;
complete dominance
, In the endangered African watchamakallit, the offspring of a true-breeding black parent and a true-
breeding white parent are all gray. When the gray offspring are crossed among themselves, their
offspring occur in a ratio of 1 black : 2 gray : 1 white. Upon close examination of the coats, each hair of a
gray animal is gray. What is the mode of inheritance? one gene pair with incomplete dominance
Suppose that extra fingers and toes are caused by a recessive trait, but it appears in only 60% of
homozygous recessive individuals. Two heterozygotes conceive a child. What is the probability that this
child will have extra fingers and toes? 0.15
Polydactyly is the condition of having extra fingers or toes. Some polydactylous persons possess extra
fingers or toes that are fully functional, whereas others possess only a small tag of extra skin. This is an
example of: variable expressivity
A mother of blood type A gives birth to a child with blood type O. Which of the following could NOT be
the blood type of the father? AB
Achondroplasia is a common cause of dwarfism in humans. All individuals with achondroplasia are
thought to be heterozygous at the locus that controls this trait. When two individuals with
achondroplasia mate, the offspring occur in a ratio of 2 achondroplasia: 1 normal. What is the MOST
likely explanation for these observations? The allele that causes achondroplasia is a recessive
lethal allele.
Crossing two yellow mice results in 2/3 yellow offspring and 1/3 nonyellow offspring. What percentage
of offspring would you expect to be nonyellow if you crossed two nonyellow mice? 100%
In humans, blood types A and B are codominant to each other and each is dominant to O. What blood
types are possible among the offspring of a couple of blood types AB and A? A, B, and AB only
You are studying body color in an African spider and have found that it is controlled by a single gene
with four alleles: B (brown), br (red), bg (green), and by (yellow). B is dominant to all the other alleles,
and by is recessive to all the other alleles. The bg allele is dominant to by but recessive to br. You cross a
pure-breeding brown spider with a pure-breeding green spider. Predict the genotype of the progeny.
B.bg
Most activators stimulate mRNA synthesis by binding to the Enhancers
What is the theoretical minimum number of different tRNAs required by a cell? 20 - one for each amino
acid
How are Hfr strains of bacteria different from F+ strains? The F factor is integrated into the
bacterial chromosome in an Hfr strain
What role do acetyltransferase play in the acetylation of histones? Acetyltransferase are enzymes
that add acetyl groups
True or False: Radiation from X rays causes T-T dimers to form in DNA because of its high energy, this
leads to frameshift mutations. False
True or False: A fruit that is 7N will most likely be larger than a 2N fruit. True
