Question 1

Where does meiosis occur in flowering plants?

Accepted Answer

A) megasporocyte 
B) microsporocyte 
C) endosperm 
D) pollen tube 
E) megasporocyte and microsporocyte 
A) megasporocyte 
B) microsporocyte 
C) endosperm 
D) pollen tube 
E) megasporocyte and microsporocyte

Question 2

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 3

Which of the following is a correct sequence of processes that takes place when a flowering plant reproduces?

Accepted Answer

A) meiosis → fertilization → ovulation → germination 
B) fertilization → meiosis → nuclear fusion → formation of embryo and endosperm 
C) meiosis → pollination → nuclear fusion → formation of embryo and endosperm 
D) growth of pollen tube → pollination → germination → fertilization 
E) meiosis → mitosis → nuclear fusion → pollen 
A) meiosis → fertilization → ovulation → germination 
B) fertilization → meiosis → nuclear fusion → formation of embryo and endosperm 
C) meiosis → pollination → nuclear fusion → formation of embryo and endosperm 
D) growth of pollen tube → pollination → germination → fertilization 
E) meiosis → mitosis → nuclear fusion → pollen

Question 4

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 and not fruits. 
C) It involves meiosis only. 
D) It can lead to genetically altered forms of the species. 
E) It produces clones of the parent plant. 
A) It involves both meiosis and mitosis to produce haploid and diploid cells. 
B) It produces vegetables and not fruits. 
C) It involves meiosis only. 
D) It can lead to genetically altered forms of the species. 
E) It produces clones of the parent plant.

Question 5

Which of the following plant/animal interactions is not a mutually beneficial (mutualistic)relationship?

Accepted Answer

A) honeybees gathering pollen from apple blossoms 
B) butterflies gathering nectar from lily blossoms 
C) beetles feeding on magnolia blossoms 
D) ants protecting and feeding from nectaries of Acacia 
E) wasps such as Campsoscolia ciliata transferring pollen in orchid flowers 
A) honeybees gathering pollen from apple blossoms 
B) butterflies gathering nectar from lily blossoms 
C) beetles feeding on magnolia blossoms 
D) ants protecting and feeding from nectaries of Acacia 
E) wasps such as Campsoscolia ciliata transferring pollen in orchid flowers

Question 6

The most immediate potential benefits of introducing genetically modified crops include

Accepted Answer

A) increasing the amount of land suitable for agriculture. 
B) overcoming genetic incompatibility. 
C) increasing the frequency of self-pollination. 
D) increasing crop yield. 
E) decreasing the mutation rate of certain genes. 
A) increasing the amount of land suitable for agriculture. 
B) overcoming genetic incompatibility. 
C) increasing the frequency of self-pollination. 
D) increasing crop yield. 
E) decreasing the mutation rate of certain genes.

Question 7

Double fertilization means that

Accepted Answer

A) flowers must be pollinated twice to yield 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 to yield 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 8

Which of the following best describes the ploidy level of a fertilized embryo sac?

Accepted Answer

A) All cells are diploid. 
B) All cells are triploid. 
C) All cells are polyploid. 
D) The ploidy level varies among species. 
E) There are haploid, diploid, and triploid cells. 
A) All cells are diploid. 
B) All cells are triploid. 
C) All cells are polyploid. 
D) The ploidy level varies among species. 
E) There are haploid, diploid, and triploid cells.

Question 9

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 10

A seed develops from

Accepted Answer

A) an ovum. 
B) a pollen grain. 
C) an ovule. 
D) an ovary. 
E) an embryo. 
A) an ovum. 
B) a pollen grain. 
C) an ovule. 
D) an ovary. 
E) an embryo.

Question 11

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, whereas 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, whereas 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 12

Which of the following is an advantage of sexual reproduction as opposed to asexual reproduction?

Accepted Answer

A) increased genetic variation in progeny 
B) enhanced mitosis 
C) more stable populations 
D) rapid increases in population due to high seed production 
E) higher reproductive success 
A) increased genetic variation in progeny 
B) enhanced mitosis 
C) more stable populations 
D) rapid increases in population due to high seed production 
E) higher reproductive success

Question 13

Which of the following is not a means of asexual reproduction in plants?

Accepted Answer

A) fragmentation 
B) root system giving rise to adventitious shoots 
C) wind pollination 
D) apomixis 
E) vegetative buds 
A) fragmentation 
B) root system giving rise to adventitious shoots 
C) wind pollination 
D) apomixis 
E) vegetative buds

Question 14

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) no reward; the male wasp is deceived by the flower shape and odour 
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) no reward; the male wasp is deceived by the flower shape and odour 
D) successful copulation with the flower 
E) a store of nectar that the wasp can use in time of famine

Question 15

Fruits develop from

Accepted Answer

A) microsporangia. 
B) receptacles. 
C) fertilized eggs. 
D) ovaries. 
E) ovules. 
A) microsporangia. 
B) receptacles. 
C) fertilized eggs. 
D) ovaries. 
E) ovules.

Question 16

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

Question 17

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) Mitosis occurs in gametophytes to produce gametes, and meiosis occurs in sporophytes to produce spores. 
E) Mitosis occurs in gametophytes to produce gametes, meiosis occurs in sporophytes to produce spores, and the gametophyte is within the flower in angiosperms. 
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) Mitosis occurs in gametophytes to produce gametes, and meiosis occurs in sporophytes to produce spores. 
E) Mitosis occurs in gametophytes to produce gametes, meiosis occurs in sporophytes to produce spores, and the gametophyte is within the flower in angiosperms.

Question 18

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) hybridization of 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) hybridization of transgenic crop genes with related wild weeds.

Question 19

The following questions refer to the diagram of an embryo sac of an angiosperm shown below.
  
-Based on the above figure, which cell(s)guide(s)the pollen tube to the egg cell?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 20

Which of the following is a successful example of the commercial use of transgenic crops?

Accepted Answer

A) inserting Bt toxin genes into cotton, maize, and potato 
B) developing plants that are resistant to ultraviolet light mutations 
C) producing plants that resist attack by large herbivores 
D) developing plants that produce all the essential amino acids for humans 
E) producing plants that contain genes for making human insulin 
A) inserting Bt toxin genes into cotton, maize, and potato 
B) developing plants that are resistant to ultraviolet light mutations 
C) producing plants that resist attack by large herbivores 
D) developing plants that produce all the essential amino acids for humans 
E) producing plants that contain genes for making human insulin

Exam 38: Angiosperm Reproduction and Biotechnology

Where does meiosis occur in flowering plants?

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

Which of the following is a correct sequence of processes that takes place when a flowering plant reproduces?

Which of the following is true about vegetative reproduction?

Which of the following plant/animal interactions is not a mutually beneficial (mutualistic)relationship?

The most immediate potential benefits of introducing genetically modified crops include

Double fertilization means that

Which of the following best describes the ploidy level of a fertilized embryo sac?

In flowering plants, a mature male gametophyte contains

A seed develops from

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

Which of the following is an advantage of sexual reproduction as opposed to asexual reproduction?

Which of the following is not a means of asexual reproduction 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?

Fruits develop from

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

Which of the following is true in plants?

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

The following questions refer to the diagram of an embryo sac of an angiosperm shown below. -Based on the above figure, which cell(s)guide(s)the pollen tube to the egg cell?

Which of the following is a successful example of the commercial use of transgenic crops?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

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 and Fermentation

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

Regulation of Gene Expression

Viruses

Dna Tools and 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 Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Plant Structure, Growth, and Development

Resource Acquisition and 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 Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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