Question 1

The first domesticated crop plants were:

Accepted Answer

A)  cereal grains 
B)  potato 
C)  banana 
D)  tomato 
E)  apple 
A)  cereal grains 
B)  potato 
C)  banana 
D)  tomato 
E)  apple

Question 2

Before genetic engineering was developed, the improvement of crops involved hybridization, polyploidy, and mutation.

Accepted Answer

A) True 
 B)False

Question 3

Budding is a form of grafting widely used commercially.

Accepted Answer

A) True 
 B)False

Question 4

In grafting, the rooted part is known as the

Accepted Answer

A)  scion. 
B)  interstock. 
C)  stock. 
D)  cambium. 
E)  inarch. 
A)  scion. 
B)  interstock. 
C)  stock. 
D)  cambium. 
E)  inarch.

Question 5

Development of homozygous purebred strains is brought about by

Accepted Answer

A)  cross-pollinating individuals of the same species or variety. 
B)  artificially inducing the doubling of chromosome numbers. 
C)  repeated inbreeding. 
D)  crossing heterozygous varieties with one another. 
E)  All of these answers are correct. 
A)  cross-pollinating individuals of the same species or variety. 
B)  artificially inducing the doubling of chromosome numbers. 
C)  repeated inbreeding. 
D)  crossing heterozygous varieties with one another. 
E)  All of these answers are correct.

Question 6

It is essential in grafting to have the bark of the stock and scion in close contact with one another.

Accepted Answer

A) True 
 B)False

Question 7

Somatic hybrids can be formed from:

Accepted Answer

A)  egg and sperm nuclei 
B)  egg and polar nuclei 
C)  2 parenchyma cells from different plants 
D)  2 parenchyma cells from the same plant 
E)  None of these answers are correct. 
A)  egg and sperm nuclei 
B)  egg and polar nuclei 
C)  2 parenchyma cells from different plants 
D)  2 parenchyma cells from the same plant 
E)  None of these answers are correct.

Question 8

Recombinant plasmids are made by

Accepted Answer

A)  machines called protein sequencers. 
B)  mixing large numbers of DNA segments with fragments of desired DNA. 
C)  isolating them from other plasmids. 
D)  joining two different plasmids with repair enzymes. 
E)  producing mutant bacteria with X-radiation. 
A)  machines called protein sequencers. 
B)  mixing large numbers of DNA segments with fragments of desired DNA. 
C)  isolating them from other plasmids. 
D)  joining two different plasmids with repair enzymes. 
E)  producing mutant bacteria with X-radiation.

Question 9

The process of gene "splicing" begins with

Accepted Answer

A)  the breaking of linkages between adjacent nucleotides of plasmids. 
B)  unpairing nucleotides in linear strands. 
C)  linking DNA fragments with repair enzymes. 
D)  insertion of recombinant plasmids into bacterial cells. 
E)  isolation and purification of the foreign gene (DN
A)  that is to be cloned. 
A)  the breaking of linkages between adjacent nucleotides of plasmids. 
B)  unpairing nucleotides in linear strands. 
C)  linking DNA fragments with repair enzymes. 
D)  insertion of recombinant plasmids into bacterial cells. 
E)  isolation and purification of the foreign gene (DN
A)  that is to be cloned.

Question 10

______ is the only major crop that was domesticated in the present U.S.

Accepted Answer

A)  Tobacco 
B)  Corn 
C)  Squash 
D)  Sunflower 
E)  Rice 
A)  Tobacco 
B)  Corn 
C)  Squash 
D)  Sunflower 
E)  Rice

Question 11

Protoplast fusion can only take place after the cell walls have been digested.

Accepted Answer

A) True 
 B)False

Question 12

Genetic diversity in wild relatives and local populations of cultivated plant species is critically important to plant breeders because ________.

Accepted Answer

A)  crop seeds should be variable 
B)  it is the source of disease and pest resistance that can be bred into new crop varieties 
C)  modern agriculture relies on low diversity in crop varieties 
D)  they are searching for new crop species to develop 
E)  they have been domesticating approximately one new crop species per year since 1900 
A)  crop seeds should be variable 
B)  it is the source of disease and pest resistance that can be bred into new crop varieties 
C)  modern agriculture relies on low diversity in crop varieties 
D)  they are searching for new crop species to develop 
E)  they have been domesticating approximately one new crop species per year since 1900

The first domesticated crop plants were:

Before genetic engineering was developed, the improvement of crops involved hybridization, polyploidy, and mutation.

Budding is a form of grafting widely used commercially.

In grafting, the rooted part is known as the

Development of homozygous purebred strains is brought about by

It is essential in grafting to have the bark of the stock and scion in close contact with one another.

Somatic hybrids can be formed from:

Recombinant plasmids are made by

The process of gene "splicing" begins with

______ is the only major crop that was domesticated in the present U.S.

Protoplast fusion can only take place after the cell walls have been digested.

Genetic diversity in wild relatives and local populations of cultivated plant species is critically important to plant breeders because ________.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters

Exam 14: Plant Breeding and Propagation

The first domesticated crop plants were:

Before genetic engineering was developed, the improvement of crops involved hybridization, polyploidy, and mutation.

Budding is a form of grafting widely used commercially.

In grafting, the rooted part is known as the

Development of homozygous purebred strains is brought about by

It is essential in grafting to have the bark of the stock and scion in close contact with one another.

Somatic hybrids can be formed from:

Recombinant plasmids are made by

The process of gene "splicing" begins with

______ is the only major crop that was domesticated in the present U.S.

Protoplast fusion can only take place after the cell walls have been digested.

Genetic diversity in wild relatives and local populations of cultivated plant species is critically important to plant breeders because ________.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters