Question 1

Which statement about the stamen and the carpel or pistil is true?

Accepted Answer

A)  The stamen has two named parts,whereas the pistil has three. 
B)  The stamen produces microgametophytes,whereas the carpel produces megagametophytes. 
C)  The carpel is yellow and the stamen is brown. 
D)  The stamens are long,whereas the pistil is short. 
E)  None of the above 
A)  The stamen has two named parts,whereas the pistil has three. 
B)  The stamen produces microgametophytes,whereas the carpel produces megagametophytes. 
C)  The carpel is yellow and the stamen is brown. 
D)  The stamens are long,whereas the pistil is short. 
E)  None of the above

Question 2

Winter wheat can be planted in the spring for fall harvest if it is

Accepted Answer

A)  sprayed with gibberellins. 
B)  vernalized. 
C)  planted under a full moon. 
D)  stored in the dark for 50 days. 
E)  soaked in water. 
A)  sprayed with gibberellins. 
B)  vernalized. 
C)  planted under a full moon. 
D)  stored in the dark for 50 days. 
E)  soaked in water.

Question 3

Suppose that a certain angiosperm grows both in Colorado and in New England.The Colorado plants reproduce asexually,while those in New England reproduce sexually.What can be inferred about the two environments in which these plants grow?

Accepted Answer

A)  The Colorado environment is more stable. 
B)  The New England environment is more stable. 
C)  The Colorado environment provides more nutrients. 
D)  The New England environment contains more pollinators. 
E)  No conclusion can be inferred from this information. 
A)  The Colorado environment is more stable. 
B)  The New England environment is more stable. 
C)  The Colorado environment provides more nutrients. 
D)  The New England environment contains more pollinators. 
E)  No conclusion can be inferred from this information.

Question 4

Some wind-dispersed seeds use _______ to help them travel.

Accepted Answer

A)  animal fur 
B)  bird feathers 
C)  structures that catch the wind 
D)  velcro-like attachment structures 
E)  air sacs 
A)  animal fur 
B)  bird feathers 
C)  structures that catch the wind 
D)  velcro-like attachment structures 
E)  air sacs

Question 5

Asexual reproduction is the best strategy for plants

Accepted Answer

A)  that are well adapted to a stable environment. 
B)  as winter approaches. 
C)  when new genes must be introduced. 
D)  that have underground stems. 
E)  that have low seed production during a particular season. 
A)  that are well adapted to a stable environment. 
B)  as winter approaches. 
C)  when new genes must be introduced. 
D)  that have underground stems. 
E)  that have low seed production during a particular season.

Question 6

In flowering plants,fertilization occurs

Accepted Answer

A)  where pollen lands on the stigma. 
B)  where the pollen tube germinates. 
C)  inside the pollen tube. 
D)  at the base of the embryo sac. 
E)  inside the seed. 
A)  where pollen lands on the stigma. 
B)  where the pollen tube germinates. 
C)  inside the pollen tube. 
D)  at the base of the embryo sac. 
E)  inside the seed.

Question 7

Which sequence represents the correct chronological order in which genes interact in the flowering pathway?

Accepted Answer

A)  FT,CO,AP1 
B)  FT,AP1,CO 
C)  CO,FT,AP1 
D)  CO,AP1,FT 
E)  AP1,CO,FT 
A)  FT,CO,AP1 
B)  FT,AP1,CO 
C)  CO,FT,AP1 
D)  CO,AP1,FT 
E)  AP1,CO,FT

Question 8

You are asked to identify the version of florigen found in carnivorous sundew plants.You decide to start by using biochemical methods to separate different macromolecules to isolate the florigen,because it is a(n)

Accepted Answer

A)  RNA molecule. 
B)  nucleotide. 
C)  DNA molecule. 
D)  protein. 
E)  lipid. 
A)  RNA molecule. 
B)  nucleotide. 
C)  DNA molecule. 
D)  protein. 
E)  lipid.

Question 9

Which process is required for the production of an egg cell by a megasporocyte?

Accepted Answer

A)  Meiosis followed by mitosis 
B)  Mitosis followed by meiosis 
C)  Several meiotic divisions only 
D)  Several mitotic divisions only 
E)  Several nuclear fusion events 
A)  Meiosis followed by mitosis 
B)  Mitosis followed by meiosis 
C)  Several meiotic divisions only 
D)  Several mitotic divisions only 
E)  Several nuclear fusion events

Question 10

In the mature embryo sac,the cells closest to where the pollen tube enters the ovule are the

Accepted Answer

A)  polar nuclei. 
B)  synergids. 
C)  polar nuclei and synergids. 
D)  egg cell and polar nuclei. 
E)  egg cell and synergids. 
A)  polar nuclei. 
B)  synergids. 
C)  polar nuclei and synergids. 
D)  egg cell and polar nuclei. 
E)  egg cell and synergids.

Question 11

If a piece of stem from one apple cultivar is grafted onto the shoot system of another,what must happen for the graft to be successful?

Accepted Answer

A)  Each section must be able to form roots. 
B)  The grafted section must be able to form seeds. 
C)  Each section must be able to form leaves. 
D)  Fusion of the two cambia tissues must occur. 
E)  Each section must be derived from the same species. 
A)  Each section must be able to form roots. 
B)  The grafted section must be able to form seeds. 
C)  Each section must be able to form leaves. 
D)  Fusion of the two cambia tissues must occur. 
E)  Each section must be derived from the same species.

Question 12

The two cells in a mature pollen grain are formed by

Accepted Answer

A)  one meiotic division and one mitotic division. 
B)  two meiotic divisions and one mitotic division. 
C)  one meiotic division and two mitotic divisions. 
D)  two meiotic divisions and two mitotic divisions. 
E)  one meiotic division in which one of the four cells degenerates. 
A)  one meiotic division and one mitotic division. 
B)  two meiotic divisions and one mitotic division. 
C)  one meiotic division and two mitotic divisions. 
D)  two meiotic divisions and two mitotic divisions. 
E)  one meiotic division in which one of the four cells degenerates.

Question 13

Experiments have shown that when a short-day plant (SDP)and a long-day plant (LDP)are grafted together and the SDP is exposed to a photoperiod that causes it to flower,the LDP also flowers.This suggests that a specific flower-initiating hormone is produced in plants.A properly controlled experiment would also

Accepted Answer

A)  include grafting together the two plants without inducing the SDP. 
B)  lengthen the SDP photoperiod. 
C)  include exposing only the LDP plant to Pfr light. 
D)  shorten the SDP photoperiod. 
E)  include an LDP photoperiod. 
A)  include grafting together the two plants without inducing the SDP. 
B)  lengthen the SDP photoperiod. 
C)  include exposing only the LDP plant to Pfr light. 
D)  shorten the SDP photoperiod. 
E)  include an LDP photoperiod.

Question 14

A horticulturalist who is producing strawberry plants that are clones of their parent is relying on which biological process?

Accepted Answer

A)  Cross-hybridization 
B)  Forced seed germination 
C)  Apomixis 
D)  A runner system 
E)  Vernalization 
A)  Cross-hybridization 
B)  Forced seed germination 
C)  Apomixis 
D)  A runner system 
E)  Vernalization

Question 15

The endosperm is formed by a fusion of the _______ and _______.

Accepted Answer

A)  egg nucleus;a sperm nucleus 
B)  egg nucleus;two sperm nuclei 
C)  synergid nuclei;a sperm nucleus 
D)  polar nuclei;a generative nucleus 
E)  polar nuclei;a sperm nucleus 
A)  egg nucleus;a sperm nucleus 
B)  egg nucleus;two sperm nuclei 
C)  synergid nuclei;a sperm nucleus 
D)  polar nuclei;a generative nucleus 
E)  polar nuclei;a sperm nucleus

Question 16

For plants that flower in response to photoperiodic stimuli,the most critical determinant in the light-dark cycle is the

Accepted Answer

A)  temperature. 
B)  length of the dark period for short-day plants and length of the light period for long-day plants. 
C)  length of the light period for short-day plants and length of the dark period for long-day plants. 
D)  length of uninterrupted dark. 
E)  length of uninterrupted light. 
A)  temperature. 
B)  length of the dark period for short-day plants and length of the light period for long-day plants. 
C)  length of the light period for short-day plants and length of the dark period for long-day plants. 
D)  length of uninterrupted dark. 
E)  length of uninterrupted light.

Question 17

The embryo sac is also called the

Accepted Answer

A)  megaspore. 
B)  megasporangium. 
C)  megasporocyte. 
D)  megasporophyll. 
E)  megagametophyte. 
A)  megaspore. 
B)  megasporangium. 
C)  megasporocyte. 
D)  megasporophyll. 
E)  megagametophyte.

Question 18

If you wanted to breed a plant to introduce self-incompatibility,which mechanism would be least useful to target in your breeding program?

Accepted Answer

A)  Pollen recognition proteins on the stigma 
B)  Pollen germination on the stigma 
C)  Pollen tube growth through the style 
D)  Sperm nuclei fusion with the egg 
E)  Introduction of novel S alleles 
A)  Pollen recognition proteins on the stigma 
B)  Pollen germination on the stigma 
C)  Pollen tube growth through the style 
D)  Sperm nuclei fusion with the egg 
E)  Introduction of novel S alleles

Question 19

If an insect chews through a flower,from outside to center,in what order will it eat the flower parts?

Accepted Answer

A)  Sepal$\rightarrow$  carpel $\rightarrow$  petal 
B)  Petal $\rightarrow$ sepal $\rightarrow$ carpel 
C)  Carpel $\rightarrow$  petal $\rightarrow$  sepal 
D)  Carpel $\rightarrow$  sepal $\rightarrow$ petal 
E)  Sepal $\rightarrow$ petal$\rightarrow$  carpel 
A)  Sepal$\rightarrow$  carpel $\rightarrow$  petal 
B)  Petal $\rightarrow$ sepal $\rightarrow$ carpel 
C)  Carpel $\rightarrow$  petal $\rightarrow$  sepal 
D)  Carpel $\rightarrow$  sepal $\rightarrow$ petal 
E)  Sepal $\rightarrow$ petal$\rightarrow$  carpel

Question 20

To stage long-day plants so they will produce blooms for a flower show,what can a greenhouse manager provide to the plants to prevent flowering?

Accepted Answer

A)  A long,uninterrupted period of darkness 
B)  A period of daylight interrupted by a dark period 
C)  A period of daylight interrupted by a prolonged period of red light 
D)  A period of darkness interrupted by a period of far-red light 
E)  A period of daylight interrupted by a brief period of red light 
A)  A long,uninterrupted period of darkness 
B)  A period of daylight interrupted by a dark period 
C)  A period of daylight interrupted by a prolonged period of red light 
D)  A period of darkness interrupted by a period of far-red light 
E)  A period of daylight interrupted by a brief period of red light

Exam 27: Reproduction of Flowering Plants

Which statement about the stamen and the carpel or pistil is true?

Winter wheat can be planted in the spring for fall harvest if it is

Suppose that a certain angiosperm grows both in Colorado and in New England.The Colorado plants reproduce asexually,while those in New England reproduce sexually.What can be inferred about the two environments in which these plants grow?

Some wind-dispersed seeds use _______ to help them travel.

Asexual reproduction is the best strategy for plants

In flowering plants,fertilization occurs

Which sequence represents the correct chronological order in which genes interact in the flowering pathway?

You are asked to identify the version of florigen found in carnivorous sundew plants.You decide to start by using biochemical methods to separate different macromolecules to isolate the florigen,because it is a(n)

Which process is required for the production of an egg cell by a megasporocyte?

In the mature embryo sac,the cells closest to where the pollen tube enters the ovule are the

If a piece of stem from one apple cultivar is grafted onto the shoot system of another,what must happen for the graft to be successful?

The two cells in a mature pollen grain are formed by

A horticulturalist who is producing strawberry plants that are clones of their parent is relying on which biological process?

The endosperm is formed by a fusion of the _______ and _______.

For plants that flower in response to photoperiodic stimuli,the most critical determinant in the light-dark cycle is the

The embryo sac is also called the

If you wanted to breed a plant to introduce self-incompatibility,which mechanism would be least useful to target in your breeding program?

If an insect chews through a flower,from outside to center,in what order will it eat the flower parts?

To stage long-day plants so they will produce blooms for a flower show,what can a greenhouse manager provide to the plants to prevent flowering?

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

Filters

The endosperm is formed by a fusion of the _ and _.