Question 1

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. 
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.

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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 4

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. 
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.

Question 5

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. 
A)  pure breeding. 
B)  parental. 
C)  potential offspring. 
D)  recessive allele. 
E)  All answers are correct.

Question 6

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

Question 7

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. 
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.

Question 8

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

Question 9

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

Question 10

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

Accepted Answer

A) True 
 B)False

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

Question 12

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. 
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.

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. 
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.

Question 14

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. 
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.

Question 15

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. 
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.

Question 16

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?

Accepted Answer

A)  RR 
B)  rr 
C)  Rr or RR 
D)  Rr 
E)  Rr or rr 
A)  RR 
B)  rr 
C)  Rr or RR 
D)  Rr 
E)  Rr or rr

Question 17

The environment only rarely affects gene expression.

Accepted Answer

A) True 
 B)False

Question 18

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. 
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.

Question 19

Traits that depend on more than one gene are

Accepted Answer

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

Question 20

Having the alleles Tt is

Accepted Answer

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

Exam 10: Patterns of Inheritance

Homologous chromosomes have

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

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

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

The "P" in "P generation" refers to

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

If an individual is heterozygous for a particular trait

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

Diagrams of gene order and spacing on chromosomes are

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

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

Uncorrected sequence mistakes during meiosis will lead to

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

If an individual is homozygous for a particular trait

Genotype means the

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?

The environment only rarely affects gene expression.

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

Traits that depend on more than one gene are

Having the alleles Tt is

The Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

Filters