Question 1

Genotype means the

Accepted Answer

A)   number of gametes in an individual.
B)   combination of alleles in an individual.
C)   number of chromosomes in an individual.
D)   observable expression of the genes in an individual.
E)   genes an individual has.F) A) and B)
G) A) and C)

Question 2

Diagrams of gene order and spacing on chromosomes are

Accepted Answer

A)   genotypes and phenotypes.
B)   phenotypes.
C)   linkage maps.
D)   genotypes.
E)   metabolic maps.F) B) and C)
G) B) and D)

Question 3

If an individual is heterozygous for a particular trait

Accepted Answer

A)   each parent contributed a different allele for that trait.
B)   each parent contributed the same allele for that trait.
C)   one parent contributed two different alleles for that trait.
D)   one parent contributed two copies of the same allele for that trait.
E)   a mutation must have occurred.F) B) and E)
G) All of the above

Question 4

When Mendel crossed tall (Tt) plants with tall (Tt) plants the offspring

Accepted Answer

A)   did not grow and reproduce.
B)   were always short.
C)   were always tall.
D)   were always medium height.
E)   were mostly tall individuals and a few short individuals.F) A) and C)
G) A) and E)

Question 5

The most common allele for any trait is always the dominant allele.

Accepted Answer

A) True 
 B)False

Question 6

Having the alleles Tt is

Accepted Answer

A)   a phenotype.
B)   linkage.
C)   a genotype.
D)   a gene.
E)   a locus.F) B) and E)
G) A) and B)

Question 7

The individual sometimes referred to as the "father of genetics" because he influenced the science of genetics more than anyone else is Gregor Mendel.

Accepted Answer

A) True 
 B)False

Question 8

Homologous chromosomes have

Accepted Answer

A)   the same genes but can have different alleles.
B)   the same genes and alleles.
C)   different genes and alleles.
D)   different genes, but can have the same alleles.E) C) and D)
F) A) and C)

Question 9

A recessive allele is one whose effect is masked if a dominant allele is also present.

Accepted Answer

A) True 
 B)False

Question 10

In these data, the parental generation characteristics (resistant or susceptible)  are shown at the top.
 RR B)  rr C)  Rr or RR D)  Rr E)  Rr or rr" class="answers-bank-image d-inline" rel="preload" >
-The F₂ generation (the larvae measured in comparison) is shown in the graphs at the bottom of this figure.The cluster of bollworms at lower larva weights would have which genotype?

Accepted Answer

A)   RR
B)   rr
C)   Rr or RR
D)   Rr
E)   Rr or rrF) A) and B)
G) A) and C)

Question 11

If all the offspring show the dominant phenotype in a test cross,then the individual with the unknown genotype was

Accepted Answer

A)   heterozygous.
B)   homozygous dominant.
C)   homozygous recessive.
D)   a clone of the other test cross individual.
E)   heterozygous recessive.F) A) and E)
G) A) and B)

Question 12

The "P" in "P generation" refers to

Accepted Answer

A)   pure breeding.
B)   parental.
C)   potential offspring.
D)   recessive allele.
E)   All answers are correct.F) C) and D)
G) None of the above

Question 13

The pea plant (Pisum sativum) is a good choice for studying heredity because it

Accepted Answer

A)   develops slowly.
B)   produces only a few offspring.
C)   is easy to control which plants mate with each other.
D)   has only a few traits that appear in two easily distinguishable forms.
E)   All answers are correct.F) B) and E)
G) B) and D)

Question 14

The most common allele,genotype,or phenotype in a population is referred to as the

Accepted Answer

A)   wild type.
B)   dominant population.
C)   recessive population.
D)   P generation.
E)   F1 generation.F) A) and B)
G) A) and E)

Question 15

In humans,alleles for a gene locus on autosomes are inherited from

Accepted Answer

A)   females only (mothers) .
B)   males only (fathers) .
C)   males and females (one allele from each parent) .
D)   males and females (two alleles from each parent) .
E)   No answer is correct.F) B) and D)
G) A) and E)

Question 16

Traits that depend on more than one gene are

Accepted Answer

A)   polygenic.
B)   pleiotropic.
C)   codominant.
D)   recessive.
E)   incomplete dominant traits.F) C) and E)
G) B) and C)

Question 17

The environment only rarely affects gene expression.

Accepted Answer

A) True 
 B)False

Question 18

The alleles of each gene packaged into separate gametes summarizes Mendel's law of

Accepted Answer

A)   segregation.
B)   random fertilization.
C)   population dynamics.
D)   crossing over.
E)   independent assortment.F) A) and E)
G) A) and C)

Question 19

If an individual is homozygous for a particular trait

Accepted Answer

A)   each parent contributed a different allele for that trait.
B)   one parent contributed two different alleles for that trait.
C)   each parent contributed the same allele for that trait.
D)   one parent contributed two copies of the same allele for that trait.
E)   a mutation must have occurred.F) D) and E)
G) All of the above

Question 20

Uncorrected sequence mistakes during meiosis will lead to

Accepted Answer

A)   production of only autosomes with mutations.
B)   production of only sex chromosomes with mutations.
C)   no living offspring.
D)   no change.
E)   production of gametes with mutated genes.F) C) and E)
G) B) and D)

Exam 10: Patterns of Inheritance

If all the offspring show the dominant phenotype in a test cross,then the individual with the unknown genotype was

Correct AnswerverifiedShow Answer

Homologous chromosomes have

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The alleles of each gene packaged into separate gametes summarizes Mendel's law of

Correct AnswerverifiedShow Answer

Genotype means the

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Traits that depend on more than one gene are

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A recessive allele is one whose effect is masked if a dominant allele is also present.

Correct AnswerverifiedShow Answer

The "P" in "P generation" refers to

Correct AnswerverifiedShow Answer

The individual sometimes referred to as the "father of genetics" because he influenced the science of genetics more than anyone else is Gregor Mendel.

Correct AnswerverifiedShow Answer

The pea plant (Pisum sativum) is a good choice for studying heredity because it

Correct AnswerverifiedShow Answer

The most common allele for any trait is always the dominant allele.

Correct AnswerverifiedShow Answer

When Mendel crossed tall (Tt) plants with tall (Tt) plants the offspring

Correct AnswerverifiedShow Answer

Having the alleles Tt is

Correct AnswerverifiedShow Answer

The environment only rarely affects gene expression.

Correct AnswerverifiedShow Answer

In these data, the parental generation characteristics (resistant or susceptible) are shown at the top. -The F₂ generation (the larvae measured in comparison) is shown in the graphs at the bottom of this figure.The cluster of bollworms at lower larva weights would have which genotype?

Correct AnswerverifiedShow Answer

Diagrams of gene order and spacing on chromosomes are

Correct AnswerverifiedShow Answer

The most common allele,genotype,or phenotype in a population is referred to as the

Correct AnswerverifiedShow Answer

If an individual is homozygous for a particular trait

Correct AnswerverifiedShow Answer

If an individual is heterozygous for a particular trait

Correct AnswerverifiedShow Answer

In humans,alleles for a gene locus on autosomes are inherited from

Correct AnswerverifiedShow Answer

Uncorrected sequence mistakes during meiosis will lead to

Correct AnswerverifiedShow Answer

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