Question 1

Which sequence represents the correct evolutionary order of pollination mechanisms,from earliest to latest?

Accepted Answer

A)   Wind-pollinated plant  →\rightarrow→   plant not needing liquid water  →\rightarrow→   animal-pollinated plant
B)   Plant not needing liquid water  →\rightarrow→  animal-pollinated plant  →\rightarrow→   wind-pollinated plant
C)   Animal-pollinated plant  →\rightarrow→   wind-pollinated plant  →\rightarrow→   plant not needing liquid water
D)   Animal-pollinated plant  →\rightarrow→   plant not needing liquid water  →\rightarrow→   wind-pollinated plant
E)   Plant not needing liquid water  →\rightarrow→  wind-pollinated plant  →\rightarrow→   animal-pollinated plant F) None of the above
G) C) and D)

Question 2

A clone of white potatoes may be derived from underground

Accepted Answer

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

Question 3

A new variety of oats that requires vernalization must _______ before it will produce seeds.

Accepted Answer

A)   be exposed to cold
B)   have sufficient soil calcium
C)   experience a minimal day length
D)   have sufficient moisture for a minimum period
E)   experience one full year of growthF) B) and D)
G) A) and B) A

Question 4

After pollination,which event is crucial for fertilization?

Accepted Answer

A)   Sperm must swim to the egg and the polar nuclei.
B)   Petals must close around the reproductive parts.
C)   Meiosis must occur within the pollen grain.
D)   A pollen tube must grow from the stigma to the ovule.
E)   An insect must deliver pollen to the stigma.F) A) and D)
G) A) and E)

Question 5

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.F) All of the above
G) A) and E)

Question 6

Short-day plants bloom

Accepted Answer

A)   in the spring.
B)   in the fall.
C)   in the summer.
D)   only after the second year of life.
E)   in the spring or in the fall.F) B) and E)
G) All of the above

Question 7

Flowers can occur singly or in an orderly cluster known as a(n)

Accepted Answer

A)   inflorescence.
B)   flower cluster.
C)   head.
D)   grouping.
E)   daisy chain.F) All of the above
G) C) and D)

Question 8

After pollen is released from the anthers,the next event that takes place is

Accepted Answer

A)   the fusion of the egg and sperm nuclei.
B)   the transfer of pollen from the anther to the stigma.
C)   the development of the two-celled pollen grain.
D)   pollen germination and growth of the pollen tube
E)   the division of the generative nucleus to produce two sperm nuclei.F) A) and C)
G) A) and B)

Question 9

A scientist has perfected a technique for capturing individual cells during the process of reproduction.What will be captured along with one of the synergids just before fertilization?

Accepted Answer

A)   Sperm cells
B)   Generative nuclei
C)   Tube nuclei
D)   Pollen nuclei
E)   MicrosporesF) B) and C)
G) D) and E)

Question 10

Which sequence represents the correct order of events (from earliest to latest) in the reproduction of angiosperms,with regard to pollen and seed?

Accepted Answer

A)   Pollination →\rightarrow→   seed dispersal  →\rightarrow→  pollen formation
B)   Pollen formation  →\rightarrow→   pollination  →\rightarrow→   seed dispersal
C)   Seed dispersal  →\rightarrow→   pollen formation  →\rightarrow→   pollination
D)   Seed dispersal  →\rightarrow→   pollination  →\rightarrow→  pollen formation
E)   Pollen formation  →\rightarrow→  seed dispersal  →\rightarrow→   pollination F) B) and D)
G) B) and C)

Question 11

If you graft together a long-day rootstock plant and a short-day scion plant,what will induce flowering?

Accepted Answer

A)   Long days,since the rootstock senses day length
B)   Both long and short days due to the grafting
C)   Short days,since the scion produces the leaves
D)   Days and nights of exactly 12 hours each
E)   Nothing;the plant will be unable to correctly sense day length.F) None of the above
G) C) and D)

Question 12

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 organ identity genes
D)   other,more mature floral meristems
E)   All of the aboveF) A) and E)
G) A) and B)

Question 13

The microgametophyte of a flowering plant is

Accepted Answer

A)   a flower.
B)   an egg.
C)   a pollen grain.
D)   an anther.
E)   the entire plant.F) All of the above
G) B) and E)

Question 14

A plant's transition to a flowering state is often marked by a(n)

Accepted Answer

A)   increased rate of photosynthesis.
B)   decrease in vegetative growth.
C)   increase in root development.
D)   decreased rate of respiration.
E)   increase in lateral bud growth.F) None of the above
G) B) and C)

Question 15

A benefit of sexual reproduction in plants is

Accepted Answer

A)   the great number of progeny that result.
B)   the ease of pollination.
C)   that it creates genetic diversity.
D)   that it creates a diploid plant from a haploid plant.
E)   that it fosters widespread dispersal of progeny.F) None of the above
G) A) and B)

Question 16

The egg can be fertilized by

Accepted Answer

A)   one tube nucleus.
B)   one sperm cell.
C)   two antipodal nuclei.
D)   one generative nucleus.
E)   two synergid nuclei.F) None of the above
G) D) and E)

Question 17

The advantage of self-pollination in plants is that

Accepted Answer

A)   it results in increased genetic recombination.
B)   meiosis can occur.
C)   it increases the chances of successful fertilization.
D)   no flowering is needed.
E)   only asexual reproduction is necessary.F) None of the above
G) B) and D)

Question 18

Which cells do not participate in double fertilization in apples?

Accepted Answer

A)   Tube cells
B)   Synergids
C)   Eggs
D)   Central cells
E)   Antipodal cellsF) A) and B)
G) A) and C)

Question 19

A horticulturalist who wants to induce flowering in a crop of short-day plants should carry out the induction

Accepted Answer

A)   in the spring.
B)   when day length is below a critical maximum.
C)   in midsummer.
D)   when day length is above a critical maximum.
E)   throughout the summer.F) A) and B)
G) A) and D) B

Question 20

You have discovered that your neighbor's bamboo plants are spreading into your yard.To stop this,what part of the plant must be killed or pruned?

Accepted Answer

A)   Rhizomes
B)   Tubers
C)   Corms
D)   Stolons
E)   LeavesF) B) and D)
G) A) and C)

Exam 27: Reproduction of Flowering Plants

Which sequence represents the correct evolutionary order of pollination mechanisms,from earliest to latest?

Correct AnswerverifiedShow Answer

A clone of white potatoes may be derived from underground

Correct AnswerverifiedA

A new variety of oats that requires vernalization must _______ before it will produce seeds.

Correct AnswerverifiedA

After pollination,which event is crucial for fertilization?

Correct AnswerverifiedShow Answer

Self-pollination results in progeny that

Correct AnswerverifiedShow Answer

Short-day plants bloom

Correct AnswerverifiedShow Answer

Flowers can occur singly or in an orderly cluster known as a(n)

Correct AnswerverifiedShow Answer

After pollen is released from the anthers,the next event that takes place is

Correct AnswerverifiedShow Answer

A scientist has perfected a technique for capturing individual cells during the process of reproduction.What will be captured along with one of the synergids just before fertilization?

Correct AnswerverifiedShow Answer

Which sequence represents the correct order of events (from earliest to latest) in the reproduction of angiosperms,with regard to pollen and seed?

Correct AnswerverifiedShow Answer

If you graft together a long-day rootstock plant and a short-day scion plant,what will induce flowering?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The microgametophyte of a flowering plant is

Correct AnswerverifiedShow Answer

A plant's transition to a flowering state is often marked by a(n)

Correct AnswerverifiedShow Answer

A benefit of sexual reproduction in plants is

Correct AnswerverifiedShow Answer

The egg can be fertilized by

Correct AnswerverifiedShow Answer

The advantage of self-pollination in plants is that

Correct AnswerverifiedShow Answer

Which cells do not participate in double fertilization in apples?

Correct AnswerverifiedShow Answer

A horticulturalist who wants to induce flowering in a crop of short-day plants should carry out the induction

Correct AnswerverifiedB

You have discovered that your neighbor's bamboo plants are spreading into your yard.To stop this,what part of the plant must be killed or pruned?

Correct AnswerverifiedShow Answer

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A

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A

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B

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