Textbook Question
Chapter 27, Problem 7SA
The three main parts of a typical mature eudicot seed are the _______ .
| a. pollen grain, egg, and seed coat b. embryo, endosperm, and seed coat c. megaspores, microspores, and ovule d. embryo, cotyledons, and seed coat |
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After fertilization, the _______________ develop(s) into a fruit and the _______________ develop(s) into a seed. (a) ovary; ovule (b) polar nuclei; ovule (c) ovary; endosperm (d) ovule; ovary (e) ovule; polar nuclei
If the VIN3 gene had a loss-of-function mutation, how do youthink that would affect the phenotypes of summer-annual andwinter-annual Arabidopsis plants?a. Neither type would flower.b. Both types would flower at the proper time.c. The summer type would flower, but the winter type wouldnot.d. The winter type would flower, but the summer type wouldnot.
The small opening in the integument(s) of the angiosperm egg sac through which the pollen tube enters is known as the _________.
Select one:
a.
Microtubule
b.
Megapyle
c.
Venter
d.
Neck-ring cells
e.
Micropyle
f.
none of these choices
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
Not helpful? See similar books
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Reproduction And Development Of Flowering Plants. 7SA
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Chapter 27 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 27 - An animal pollinator may be rewarded by _______...Ch. 27 - The arrival of pollen grains on a receptive stigma...Ch. 27 - Prob. 3SACh. 27 - In flowers, the structures that produce male...Ch. 27 - Seeds are mature _______ ; fruits are...Ch. 27 - Prob. 6SACh. 27 - The three main parts of a typical mature eudicot...Ch. 27 - Prob. 8SACh. 27 - Prob. 9SACh. 27 - Prob. 10SA
Ch. 27 - Prob. 11SACh. 27 - Prob. 12SACh. 27 - Prob. 13SACh. 27 - Which of the following statements is false? a....Ch. 27 - Match the observation with the main hormones.. ___...Ch. 27 - The oat coleoptiles on the left have been...Ch. 27 - Is the seedling shown on the right a monocot or...Ch. 27 - Prob. 3CTCh. 27 - Prob. 4CT
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Similar questions
Fruits do not form in gymnosperms becausea. in gymnosperms, the seed is surrounded by the ovule.b. in angiosperms, the ovary is surrounded by the ovule.c. in gymnosperms, the ovule is surrounded by the ovary.d. in angiosperms, the ovule is surrounded by the ovary.
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Double fertilization results in __________________________.
a.
a diploid zygote and triploid endosperm in each seed
b.
a spare sperm nucleusÂ
c.
two diploid zygotes in every seed
d.
none of these answers is correct
e.
three diploid zygotes; one of the three will form will develop into a sporophyte embryo in a seed, one will die and the third will migrate out of the megasporangium and form a separate male plant
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The immature male gametophytes of pine are called (a) ovules (b) stamens (c) seed cones (d) pollen grains (e) polar nuclei
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The______ are parts of a mature seed. a. stamen, anther, and pollen grain b. embryo, food reserves, and seed coat c. stigma, style, and ovary d. male and female gametophytes
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Key features of seed plants facilitating life on land include threeof the following four traits. Select the exception.(A) homospory(B) pollen(C) reduced gametophytes(D) seeds
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Meiosis occurs within the:
Â
A.
Endosperm
Â
B.
Petal
Â
C.
Ovary
Â
D.
Ovule
Â
E.
Stigma
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Callase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by:
(a) pollens
(b) tapetum
(c) middle layers
(d) endothecium.
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In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microspores
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Which of the following statements is false? a. Ferns produce seeds inside sori. b. Conifers do not produce fruits. c. Both gymnosperms and angiosperms produce pollen. d. Only angiosperms produce flowers
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In plants that lack endosperm in their mature seeds, the cotyledons function to (a) enclose and protect the seed (b) aid in seed dispersal (c) serve as an absorptive embryonic root (d) store food reserves (e) attach the embryo within the ovule
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Only angiosperms produce_______. a. pollen c. fruits b. seeds d. all of the above
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Early botanists admired ferns but found their life cycle perplexing, In the 1700s, they learned to propagate ferns by sowing what appeared to be tiny dustlike seeds that they collected from the undersides of fronds. Despite many attempts, the botanists could not locate the pollen source, which they assumed must stimulate these seeds to develop. Imagine you could write to these botanists. Compose a note that explains the fern life cycle and clears up their confusion.
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