Genetics, Analysis and Principles,
8th Edition by Robert Brooker
Complete Chapter Solutions Manual
are included (Ch 1 to 29)
** Immediate Download
** Swift Response
** All Chapters included
, Genetics, Analysis & Principles/8e
Solutions Manual
CHAPTER 1
Note: The answers to the Comprehension questions are in Appendix B.
Concept check questions (following figure legends)
FIGURE 1.1
Understanding our genes may help to diagnose inherited diseases. It may also lead to the
development of drugs to combat diseases. Other answers are possible.
FIGURE 1.2
Many ethical issues are associated with human cloning. Is it the wrong thing to do? Does it
conflict with an individual’s religious views? And so on.
FIGURE 1.3
Because females mate only once, sorting out the male mosquitoes and releasing sterile males
into the environment can limit mosquito reproduction.
FIGURE 1.4
DNA is a macromolecule.
FIGURE 1.5
DNA and proteins are found in chromosomes. A small amount of RNA may also be associated
with chromosomes when transcription is occurring, and, as discussed in Chapter 17, some
non-coding RNAs may bind to chromosomes.
FIGURE 1.6
The information to make a polypeptide is stored in DNA.
FIGURE 1.7
The dark-colored butterfly has a more active pigment-synthesizing enzyme.
FIGURE 1.8
Genetic variation is the reason these frogs look different.
FIGURE 1.9
These are examples of variation in chromosome number.
FIGURE 1.1 0
, A corn gamete contains 10 chromosomes. (The leaf cells are diploid.)
FIGURE 1.11
The horse populations adapted to their environment, which has gradually changed over the
course of many years.
FIGURE 1.12
There are several possible examples of other model organisms, including rats and frogs.
End-of-chapter Questions:
Conceptual Questions
C1. There are many possible answers. Some common areas to discuss might involve the impact
of genetics in the production of new medicines, the diagnosis of diseases, the production of
new kinds of food, and the use of DNA fingerprinting to solve crimes.
C2. A chromosome is a very long polymer of DNA. A gene is a specific sequence of bases
within that polymer; the sequence of bases distinguishes a gene from other genes. Genes
are located in chromosomes, which are found within living cells.
C3. The structure and function of proteins govern the structure and function of living cells. The
cells of the body determine an organism’s traits.
C4. At the molecular level, a gene (a sequence of bases in DNA) is first transcribed into RNA.
Most genes are transcribed into an mRNA, which codes a polypeptide. The genetic code
within the mRNA is used to synthesize a polypeptide with a particular amino acid sequence.
This second process is called translation.
C5.
A. Molecular level. This is a description of a how an allele affects protein function.
B. Cellular level. This is a description of how protein function affects cell structure.
C. Population level. This is a description of how the two alleles affect members of a population.
D. Organism level. This is a description of how the alleles affect the traits of an individual.
C6. Genetic variation is the occurrence of genetic differences in members of the same species
or among different species. Within any population, variation may occur in the genetic
material. Variation may occur in particular genes, so some individuals carry one allele and
other individuals carry a different allele. An example would be alleles that cause differences
in coat color among mammals. Variation may also occur in chromosome structure and
number. In plants, differences in chromosome number can affect disease resistance.
C7. An extra chromosome (specifically an extra copy of chromosome 21) causes Down
syndrome.
8th Edition by Robert Brooker
Complete Chapter Solutions Manual
are included (Ch 1 to 29)
** Immediate Download
** Swift Response
** All Chapters included
, Genetics, Analysis & Principles/8e
Solutions Manual
CHAPTER 1
Note: The answers to the Comprehension questions are in Appendix B.
Concept check questions (following figure legends)
FIGURE 1.1
Understanding our genes may help to diagnose inherited diseases. It may also lead to the
development of drugs to combat diseases. Other answers are possible.
FIGURE 1.2
Many ethical issues are associated with human cloning. Is it the wrong thing to do? Does it
conflict with an individual’s religious views? And so on.
FIGURE 1.3
Because females mate only once, sorting out the male mosquitoes and releasing sterile males
into the environment can limit mosquito reproduction.
FIGURE 1.4
DNA is a macromolecule.
FIGURE 1.5
DNA and proteins are found in chromosomes. A small amount of RNA may also be associated
with chromosomes when transcription is occurring, and, as discussed in Chapter 17, some
non-coding RNAs may bind to chromosomes.
FIGURE 1.6
The information to make a polypeptide is stored in DNA.
FIGURE 1.7
The dark-colored butterfly has a more active pigment-synthesizing enzyme.
FIGURE 1.8
Genetic variation is the reason these frogs look different.
FIGURE 1.9
These are examples of variation in chromosome number.
FIGURE 1.1 0
, A corn gamete contains 10 chromosomes. (The leaf cells are diploid.)
FIGURE 1.11
The horse populations adapted to their environment, which has gradually changed over the
course of many years.
FIGURE 1.12
There are several possible examples of other model organisms, including rats and frogs.
End-of-chapter Questions:
Conceptual Questions
C1. There are many possible answers. Some common areas to discuss might involve the impact
of genetics in the production of new medicines, the diagnosis of diseases, the production of
new kinds of food, and the use of DNA fingerprinting to solve crimes.
C2. A chromosome is a very long polymer of DNA. A gene is a specific sequence of bases
within that polymer; the sequence of bases distinguishes a gene from other genes. Genes
are located in chromosomes, which are found within living cells.
C3. The structure and function of proteins govern the structure and function of living cells. The
cells of the body determine an organism’s traits.
C4. At the molecular level, a gene (a sequence of bases in DNA) is first transcribed into RNA.
Most genes are transcribed into an mRNA, which codes a polypeptide. The genetic code
within the mRNA is used to synthesize a polypeptide with a particular amino acid sequence.
This second process is called translation.
C5.
A. Molecular level. This is a description of a how an allele affects protein function.
B. Cellular level. This is a description of how protein function affects cell structure.
C. Population level. This is a description of how the two alleles affect members of a population.
D. Organism level. This is a description of how the alleles affect the traits of an individual.
C6. Genetic variation is the occurrence of genetic differences in members of the same species
or among different species. Within any population, variation may occur in the genetic
material. Variation may occur in particular genes, so some individuals carry one allele and
other individuals carry a different allele. An example would be alleles that cause differences
in coat color among mammals. Variation may also occur in chromosome structure and
number. In plants, differences in chromosome number can affect disease resistance.
C7. An extra chromosome (specifically an extra copy of chromosome 21) causes Down
syndrome.
