Question 1

Location of the ovary:

Accepted Answer

A) stamen 
B) carpel 
C) petals 
D) sepals 
E) receptacle 
A) stamen 
B) carpel 
C) petals 
D) sepals 
E) receptacle

Question 2

The basal cell formed from the first division of a plant zygote will eventually develop into

Accepted Answer

A) the suspensor that anchors the embryo and transfers nutrients. 
B) the proembryo. 
C) the endosperm that nourishes the developing embryo. 
D) the root apex of the embryo. 
E) two cotyledons in eudicots, but one in monocots. 
A) the suspensor that anchors the embryo and transfers nutrients. 
B) the proembryo. 
C) the endosperm that nourishes the developing embryo. 
D) the root apex of the embryo. 
E) two cotyledons in eudicots, but one in monocots.

Question 3

Double fertilization means that

Accepted Answer

A) flowers must be pollinated twice in order to produce fruits and seeds. 
B) every egg must receive two sperm to produce an embryo. 
C) one sperm is needed to fertilize the egg, and a second sperm is needed to fertilize the polar nuclei. 
D) the egg of the embryo sac is diploid. 
E) every sperm has two nuclei. 
A) flowers must be pollinated twice in order to produce fruits and seeds. 
B) every egg must receive two sperm to produce an embryo. 
C) one sperm is needed to fertilize the egg, and a second sperm is needed to fertilize the polar nuclei. 
D) the egg of the embryo sac is diploid. 
E) every sperm has two nuclei.

Question 4

The embryo of a grass seed is enclosed by two protective sheaths, a(n)__________, which covers the young shoot, and a(n)__________, which covers the young root.

Accepted Answer

A) cotyledon; radicle 
B) hypocotyls; epicotyl 
C) coleoptile; coleorhiza 
D) scutellum; coleoptile 
E) epicotyl; radicle 
A) cotyledon; radicle 
B) hypocotyls; epicotyl 
C) coleoptile; coleorhiza 
D) scutellum; coleoptile 
E) epicotyl; radicle

Question 5

Which of the following is True in plants?

Accepted Answer

A) Mitosis occurs in gametophytes to produce gametes. 
B) Meiosis occurs in sporophytes to produce spores. 
C) The gametophyte is within the flower in angiosperms. 
D) A and B only 
E) A, B, and C 
A) Mitosis occurs in gametophytes to produce gametes. 
B) Meiosis occurs in sporophytes to produce spores. 
C) The gametophyte is within the flower in angiosperms. 
D) A and B only 
E) A, B, and C

Question 6

The male wasp Campsoscolia ciliata transfers pollen from one orchid to another orchid of the same species. What "reward" does the male wasp receive from the orchid plants for helping with the orchid pollination?

Accepted Answer

A) a supply of energy-rich nectar 
B) volatile chemical hormones that help the male wasp find a sexually receptive female 
C) There is no reward. The male wasp is deceived by the flower shape and odor 
D) successful copulation with the flower 
E) a store of nectar that the wasp can use in time of famine 
A) a supply of energy-rich nectar 
B) volatile chemical hormones that help the male wasp find a sexually receptive female 
C) There is no reward. The male wasp is deceived by the flower shape and odor 
D) successful copulation with the flower 
E) a store of nectar that the wasp can use in time of famine

Question 7

What is the difference between pollination and fertilization in flowering plants?

Accepted Answer

A) Fertilization precedes pollination. 
B) Pollination easily occurs between plants of different species, fertilization is within a species. 
C) Pollen is formed within megasporangia so that male and female gametes are near each other. 
D) Pollination is the transfer of pollen from an anther to a stigma. Fertilization is the fusion of haploid nuclei 
E) If fertilization occurs, pollination is unnecessary. 
A) Fertilization precedes pollination. 
B) Pollination easily occurs between plants of different species, fertilization is within a species. 
C) Pollen is formed within megasporangia so that male and female gametes are near each other. 
D) Pollination is the transfer of pollen from an anther to a stigma. Fertilization is the fusion of haploid nuclei 
E) If fertilization occurs, pollination is unnecessary.

Question 8

For this pair of items, choose the option that best describes their relationship. (A)The amount of fumonisin in processed maize products
(B)The amount of fumonisin in processed Bt maize products

Accepted Answer

A) Item (
A) is greater than item (
B) . 
B) Item (
A) is less than item (
B) . 
C) Item (
A) is exactly or very approximately equal to item (
B) . 
D) Item (
A) may stand in more than one of the above relations to item (
B) . 
A) Item (
A) is greater than item (
B) . 
B) Item (
A) is less than item (
B) . 
C) Item (
A) is exactly or very approximately equal to item (
B) . 
D) Item (
A) may stand in more than one of the above relations to item (
B) .

Question 9

All of the following strategies are being pursued with the goal of preventing transgene escape from genetically modified crops except

Accepted Answer

A) the engineering of male sterility into plants. 
B) the genetic engineering of apomixis into transgenic crops. 
C) the genetic engineering of trangenes into the chloroplast DNA . 
D) the genetic engineering of flowers that develop normally, but fail to open. 
E) hybridize transgenic crop genes with related wild weeds. 
A) the engineering of male sterility into plants. 
B) the genetic engineering of apomixis into transgenic crops. 
C) the genetic engineering of trangenes into the chloroplast DNA . 
D) the genetic engineering of flowers that develop normally, but fail to open. 
E) hybridize transgenic crop genes with related wild weeds.

Question 10

The development of Bt crops raises concerns because

Accepted Answer

A) Bt crops have been shown to be toxic to humans. 
B) pollen from these crops is harmful to monarch butterfly larvae in the field. 
C) if genes for Bt toxin "escape" to related weed species, the hybrid weeds could have harmful ecological effects. 
D) Bacillus thuringiensis is a pathogen of humans. 
E) Bt toxin reduces the nutritional quality of crops. 
A) Bt crops have been shown to be toxic to humans. 
B) pollen from these crops is harmful to monarch butterfly larvae in the field. 
C) if genes for Bt toxin "escape" to related weed species, the hybrid weeds could have harmful ecological effects. 
D) Bacillus thuringiensis is a pathogen of humans. 
E) Bt toxin reduces the nutritional quality of crops.

Question 11

The following questions refer to the diagram of an embryo sac of an angiosperm.
   
Figure 38.1
-Which cell(s)become(s)the triploid endosperm?

Accepted Answer

The answer of The following questions refer to the diagram...

Question 12

Sources of genetic variability in an asexually propagated species may involve all of the following processes except

Accepted Answer

A) protoplast fusion. 
B) mutation. 
C) hybridization. 
D) genetic engineering. 
E) apomixis. 
A) protoplast fusion. 
B) mutation. 
C) hybridization. 
D) genetic engineering. 
E) apomixis.

Question 13

Currently available transgenic plants have been modified for all of the following traits except

Accepted Answer

A) insect resistance. 
B) nitrogen fixation. 
C) herbicide resistance. 
D) improved nutritional quality. 
E) virus resistance. 
A) insect resistance. 
B) nitrogen fixation. 
C) herbicide resistance. 
D) improved nutritional quality. 
E) virus resistance.

Question 14

Draw and label the parts of a flower.

Accepted Answer

The answer of Draw and label the parts of a...

Question 15

In flowering plants, a mature male gametophyte contains

Accepted Answer

A) two haploid gametes and a diploid pollen grain. 
B) a generative cell and a tube cell. 
C) two sperm nuclei and one tube cell nucleus. 
D) two haploid microspores. 
E) a haploid nucleus and a diploid pollen wall. 
A) two haploid gametes and a diploid pollen grain. 
B) a generative cell and a tube cell. 
C) two sperm nuclei and one tube cell nucleus. 
D) two haploid microspores. 
E) a haploid nucleus and a diploid pollen wall.

Question 16

In which of the following pairs are the two terms equivalent?

Accepted Answer

A) ovule egg 
B) embryo sac female gametophyte 
C) endosperm male gametophyte 
D) seed zygote 
E) microspore pollen grain 
A) ovule egg 
B) embryo sac female gametophyte 
C) endosperm male gametophyte 
D) seed zygote 
E) microspore pollen grain

Question 17

Which of the following is True about vegetative reproduction?

Accepted Answer

A) It involves both meiosis and mitosis to produce haploid and diploid cells. 
B) It produces vegetables. 
C) It involves meiosis only. 
D) It can lead to genetically altered forms of the species. 
E) It produces clones. 
A) It involves both meiosis and mitosis to produce haploid and diploid cells. 
B) It produces vegetables. 
C) It involves meiosis only. 
D) It can lead to genetically altered forms of the species. 
E) It produces clones.

Question 18

Which of the following is not a scientific concern relating to creating genetically modified crops?

Accepted Answer

A) Herbicide resistance may spread to weedy species. 
B) Insect pests may evolve resistance to toxins more rapidly. 
C) Nontarget species may be affected. 
D) The monetary costs of growing genetically modified plants are significantly greater than traditional breeding techniques. 
E) Genetically modified plants may lead to unknown risks to human health. 
A) Herbicide resistance may spread to weedy species. 
B) Insect pests may evolve resistance to toxins more rapidly. 
C) Nontarget species may be affected. 
D) The monetary costs of growing genetically modified plants are significantly greater than traditional breeding techniques. 
E) Genetically modified plants may lead to unknown risks to human health.

Question 19

A disadvantage of monoculture is that

Accepted Answer

A) the whole crop ripens at one time. 
B) genetic uniformity makes a crop vulnerable to a new pest or disease. 
C) it predominantly uses vegetative propagation. 
D) most grain crops self-pollinate. 
E) it allows for the cultivation of large areas of land. 
A) the whole crop ripens at one time. 
B) genetic uniformity makes a crop vulnerable to a new pest or disease. 
C) it predominantly uses vegetative propagation. 
D) most grain crops self-pollinate. 
E) it allows for the cultivation of large areas of land.

Question 20

Which of the following "vegetables" is botanically a fruit?

Accepted Answer

A) potato 
B) lettuce 
C) radish 
D) celery 
E) green beans 
A) potato 
B) lettuce 
C) radish 
D) celery 
E) green beans

Exam 38: Angiosperm Reproduction and Biotechnology

Location of the ovary:

The basal cell formed from the first division of a plant zygote will eventually develop into

Double fertilization means that

The embryo of a grass seed is enclosed by two protective sheaths, a(n)__________, which covers the young shoot, and a(n)__________, which covers the young root.

Which of the following is True in plants?

The male wasp Campsoscolia ciliata transfers pollen from one orchid to another orchid of the same species. What "reward" does the male wasp receive from the orchid plants for helping with the orchid pollination?

What is the difference between pollination and fertilization in flowering plants?

For this pair of items, choose the option that best describes their relationship. (A)The amount of fumonisin in processed maize products (B)The amount of fumonisin in processed Bt maize products

All of the following strategies are being pursued with the goal of preventing transgene escape from genetically modified crops except

The development of Bt crops raises concerns because

The following questions refer to the diagram of an embryo sac of an angiosperm. Figure 38.1 -Which cell(s)become(s)the triploid endosperm?

Sources of genetic variability in an asexually propagated species may involve all of the following processes except

Currently available transgenic plants have been modified for all of the following traits except

Draw and label the parts of a flower.

In flowering plants, a mature male gametophyte contains

In which of the following pairs are the two terms equivalent?

Which of the following is True about vegetative reproduction?

Which of the following is not a scientific concern relating to creating genetically modified crops?

A disadvantage of monoculture is that

Which of the following "vegetables" is botanically a fruit?

Introduction: Themes in the Study of Life

The Chemical Context of Life

Water and the Fitness of the Environment

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Control of Gene Expression

Viruses

Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Introduction to Animal Diversity

Invertebrates

Vertebrates

Plant Structure, Growth, and Development

Transport in Vascular Plants

Soil and Plant Nutrition

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems

Conservation Biology and Restoration Ecology

Filters

The embryo of a grass seed is enclosed by two protective sheaths, a(n), which covers the young shoot, and a(n), which covers the young root.