Question 1

After fertilization of the egg, the integument of the megasporangium develops into the

Accepted Answer

A)  cotyledons. 
B)  embryo. 
C)  endosperm. 
D)  fruit. 
E)  seed coat. 
A)  cotyledons. 
B)  embryo. 
C)  endosperm. 
D)  fruit. 
E)  seed coat.

Question 2

Self-pollination results in progeny that

Accepted Answer

A)  are identical to the parent. 
B)  are somewhat different from the parent because mutations are common. 
C)  can express only alleles that were present in the parent. 
D)  may be heterozygous in a locus where the parent is homozygous. 
E)  may be as varied as progeny resulting from cross-pollination. 
A)  are identical to the parent. 
B)  are somewhat different from the parent because mutations are common. 
C)  can express only alleles that were present in the parent. 
D)  may be heterozygous in a locus where the parent is homozygous. 
E)  may be as varied as progeny resulting from cross-pollination.

Question 3

Long-day plants will not flower if exposed to a long

Accepted Answer

A)  night. 
B)  day interrupted by a dark period. 
C)  day interrupted by a prolonged period of red light. 
D)  night interrupted by a period of far-red light. 
E)  day interrupted by a brief period of red light. 
A)  night. 
B)  day interrupted by a dark period. 
C)  day interrupted by a prolonged period of red light. 
D)  night interrupted by a period of far-red light. 
E)  day interrupted by a brief period of red light.

Question 4

One agricultural industry in which grafting is an important technique is _______ production.

Accepted Answer

The answer of One agricultural industry in which grafting is...

Question 5

The production of seeds without fertilization is called

Accepted Answer

A)  apomixis. 
B)  parthenogenesis. 
C)  conception. 
D)  circadian rhythm. 
E)  vernalization. 
A)  apomixis. 
B)  parthenogenesis. 
C)  conception. 
D)  circadian rhythm. 
E)  vernalization.

Question 6

The LEAFY and APETALA1 genes are examples of _______ genes.

Accepted Answer

A)  floral organ identity 
B)  meristem identity 
C)  viviparity 
D)  photoperiod 
E)  inflorescence 
A)  floral organ identity 
B)  meristem identity 
C)  viviparity 
D)  photoperiod 
E)  inflorescence

Question 7

You have moved into a new house. During the first summer you notice many of the plants do not bloom. During the second summer your yard is a sea of blooms. It is now spring of the third year, and there are no plants. This can best be explained by which of the following?

Accepted Answer

A)  The plants are annuals. 
B)  The plants are biennials. 
C)  The plants are perennials. 
D)  The plants are being affected by drought. 
E)  The nights are too long for the plants. 
A)  The plants are annuals. 
B)  The plants are biennials. 
C)  The plants are perennials. 
D)  The plants are being affected by drought. 
E)  The nights are too long for the plants.

Question 8

The integuments of the ovule develop into the _______, and the carpels ultimately become the wall of the _______.

Accepted Answer

A)  cotyledons; endosperm 
B)  seed coats; fruit 
C)  cotyledons; seed coats 
D)  endosperm; seed coats 
E)  cotyledons; fruit 
A)  cotyledons; endosperm 
B)  seed coats; fruit 
C)  cotyledons; seed coats 
D)  endosperm; seed coats 
E)  cotyledons; fruit

Question 9

Which of the following best describes the fate of the generative cell of the pollen grain?

Accepted Answer

A)  It coordinates growth of the pollen tube. 
B)  It divides by meiosis to produce two sperm nuclei. 
C)  It divides by mitosis to produce two sperm nuclei. 
D)  It forms the pollen tube. 
E)  None of the above 
A)  It coordinates growth of the pollen tube. 
B)  It divides by meiosis to produce two sperm nuclei. 
C)  It divides by mitosis to produce two sperm nuclei. 
D)  It forms the pollen tube. 
E)  None of the above

Question 10

In the fertilization of almost all angiosperms, the two _______ sperm nuclei first enter the cytoplasm of a _______ synergid cell. One sperm nucleus fuses with the nucleus of the egg to produce a _______ zygote, and the other sperm nucleus fuses two polar nuclei to produce a _______ endosperm.

Accepted Answer

A)  haploid; diploid; diploid; triploid 
B)  haploid; haploid; diploid; triploid 
C)  diploid; haploid; triploid; triploid 
D)  diploid; haploid; triploid; tetraploid 
E)  haploid; triploid; diploid; triploid 
A)  haploid; diploid; diploid; triploid 
B)  haploid; haploid; diploid; triploid 
C)  diploid; haploid; triploid; triploid 
D)  diploid; haploid; triploid; tetraploid 
E)  haploid; triploid; diploid; triploid

Question 11

Flowering is known to be triggered by _______, although this substance has not yet been completely analyzed.

Accepted Answer

A)  florigen 
B)  NO 
C)  ethylene 
D)  abscisin 
E)  phytochrome 
A)  florigen 
B)  NO 
C)  ethylene 
D)  abscisin 
E)  phytochrome

Question 12

A clone of white potatoes may be derived from underground

Accepted Answer

A)  stolons. 
B)  tubers. 
C)  rhizomes. 
D)  bulbs. 
E)  root suckers. 
A)  stolons. 
B)  tubers. 
C)  rhizomes. 
D)  bulbs. 
E)  root suckers.

Question 13

Apomixis

Accepted Answer

A)  is a form of sexual reproduction. 
B)  involves flowers, but not fertilization. 
C)  produces progeny that are genetically distinct from the parent. 
D)  does not result in fertile seeds. 
E)  requires the male gametophyte. 
A)  is a form of sexual reproduction. 
B)  involves flowers, but not fertilization. 
C)  produces progeny that are genetically distinct from the parent. 
D)  does not result in fertile seeds. 
E)  requires the male gametophyte.

Question 14

In the transition from vegetative growth to floral growth the _______ must be transformed into the _______. This involves a shift from _______ growth to _______ growth.

Accepted Answer

A)  apical meristem; floral meristem; indeterminate; determinate 
B)  lateral meristem; floral meristem; indeterminate; determinate 
C)  apical meristem; floral meristem; determinate; indeterminate 
D)  apical cambium; floral cambium; determinate; indeterminate 
E)  floral meristem; apical cambium; determinate; indeterminate 
A)  apical meristem; floral meristem; indeterminate; determinate 
B)  lateral meristem; floral meristem; indeterminate; determinate 
C)  apical meristem; floral meristem; determinate; indeterminate 
D)  apical cambium; floral cambium; determinate; indeterminate 
E)  floral meristem; apical cambium; determinate; indeterminate

Question 15

Use the following to answer questions :
Refer to the diagram below.  
-The structures labeled E are pollen grains. What is another name for a pollen grain?

Accepted Answer

The answer of Use the following to answer questions :
Refer...

Question 16

The nutritious flesh of many fruits has the function of

Accepted Answer

A)  nourishing the embryo. 
B)  attracting seed eaters. 
C)  attracting pollinators. 
D)  attracting seed dispersers. 
E)  ensuring that the seeds fall close to the parent plant. 
A)  nourishing the embryo. 
B)  attracting seed eaters. 
C)  attracting pollinators. 
D)  attracting seed dispersers. 
E)  ensuring that the seeds fall close to the parent plant.

Question 17

The process of grafting involves

Accepted Answer

A)  allowing a piece of one plant (the scion) to grow onto the root of another (the stock). 
B)  cross-fertilization between two plants. 
C)  preparing several cuttings from a plant, each of which will grow into an individual plant. 
D)  the production of xylem and phloem from the same cambium layer. 
E)  the interbreeding of two species of plants. 
A)  allowing a piece of one plant (the scion) to grow onto the root of another (the stock). 
B)  cross-fertilization between two plants. 
C)  preparing several cuttings from a plant, each of which will grow into an individual plant. 
D)  the production of xylem and phloem from the same cambium layer. 
E)  the interbreeding of two species of plants.

Question 18

After an apical meristem has been redirected toward developing into a floral meristem, _______ are responsible for further refinement of the floral development pathway.

Accepted Answer

A)  unknown hormones 
B)  light signals 
C)  floral identity genes 
D)  other, more mature floral meristems 
E)  All of the above 
A)  unknown hormones 
B)  light signals 
C)  floral identity genes 
D)  other, more mature floral meristems 
E)  All of the above

Question 19

In general, the production of progeny with genotypes identical to the parent is called _______ reproduction, whereas self-fertilization is a form of _______ reproduction.

Accepted Answer

The answer of In general, the production of progeny with...

Question 20

Use the following to answer questions :
Refer to the diagram below.  
-Identify the structures labeled A, B, C, and D.

Accepted Answer

A: STIGMA;

Exam 38: Reproduction in Flowering Plants

After fertilization of the egg, the integument of the megasporangium develops into the

Self-pollination results in progeny that

Long-day plants will not flower if exposed to a long

One agricultural industry in which grafting is an important technique is _______ production.

The production of seeds without fertilization is called

The LEAFY and APETALA1 genes are examples of _______ genes.

You have moved into a new house. During the first summer you notice many of the plants do not bloom. During the second summer your yard is a sea of blooms. It is now spring of the third year, and there are no plants. This can best be explained by which of the following?

The integuments of the ovule develop into the _______, and the carpels ultimately become the wall of the _______.

Which of the following best describes the fate of the generative cell of the pollen grain?

In the fertilization of almost all angiosperms, the two _______ sperm nuclei first enter the cytoplasm of a _______ synergid cell. One sperm nucleus fuses with the nucleus of the egg to produce a _______ zygote, and the other sperm nucleus fuses two polar nuclei to produce a _______ endosperm.

Flowering is known to be triggered by _______, although this substance has not yet been completely analyzed.

A clone of white potatoes may be derived from underground

Apomixis

In the transition from vegetative growth to floral growth the _______ must be transformed into the _______. This involves a shift from _______ growth to _______ growth.

Use the following to answer questions : Refer to the diagram below. -The structures labeled E are pollen grains. What is another name for a pollen grain?

The nutritious flesh of many fruits has the function of

The process of grafting involves

After an apical meristem has been redirected toward developing into a floral meristem, _______ are responsible for further refinement of the floral development pathway.

In general, the production of progeny with genotypes identical to the parent is called _______ reproduction, whereas self-fertilization is a form of _______ reproduction.

Use the following to answer questions : Refer to the diagram below. -Identify the structures labeled A, B, C, and D.

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

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Recombinent Dna and Biotechnology

Differential Gene Expression in Development

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Bacteria and Archaea: the Prokaryotic Domains

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Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

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Plant Responses to Environmental Challenges

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The integuments of the ovule develop into the _, and the carpels ultimately become the wall of the _.

In the fertilization of almost all angiosperms, the two ___ sperm nuclei first enter the cytoplasm of a _ synergid cell. One sperm nucleus fuses with the nucleus of the egg to produce a _ zygote, and the other sperm nucleus fuses two polar nuclei to produce a ___ endosperm.

In the transition from vegetative growth to floral growth the ___ must be transformed into the _. This involves a shift from _ growth to ___ growth.

In general, the production of progeny with genotypes identical to the parent is called _ reproduction, whereas self-fertilization is a form of _ reproduction.