Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 29, Problem 5SQ
Meiosis of cells in pollen sacs forms haploid _________.
- a. megaspores
- b. microspores
- c. stamens
- d. spomphytes
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2. A. The microsporangium in the anther contains numerous microsporocytes which will undergo meiosis to produce four haploid microspores. B. Each microspore develops into a pollen grain containing two sperm nuclei and one tube nucleus.
A.If statement A is correct and B is wrong.
B.If both statements are correct.
C.If statement A is wrong and B is correct.
D.If both statements are wrong.
A fruit is(A) a mature ovary.(B) a mature ovule.(C) a seed plus its integuments.(D) an enlarged embryo sac.
The stamens represent:
(a) microsporangia
(b) male gametophyte
(c) male gametes
(d) microsporophylls.
Chapter 29 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 29 - _______ is the arrival of pollen on a receptive...Ch. 29 - An animal pollinator may receive _____ when it...Ch. 29 - In flowers, a _______ contains one or more...Ch. 29 - In flowers, the structures that produce male and...Ch. 29 - Meiosis of cells in pollen sacs forms haploid...Ch. 29 - True or false? All flowers are pollinated by bees.Ch. 29 - The three main parts of a mature seed are...Ch. 29 - The seed coat forms from the __________. a....Ch. 29 - Seeds are mature ______; fruits are mature...Ch. 29 - Dixie Bee prepares a plate of fruits for a party...
Ch. 29 - Cotyledons develop as pan of ________. a. carpels...Ch. 29 - Exposure to _______ can trigger seed germination....Ch. 29 - Prob. 13SQCh. 29 - Banana plants produce seedless fruit because they...Ch. 29 - Match the terms with the most suitable...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Prob. 1CTCh. 29 - Is the seedling shown on the right a monocot or...Ch. 29 - All but one species of large-billed birds native...
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- The alternation of generations life cycle applies to gymosperms in that: A. the gametophyte stage is reduced B. the sporophyte stage is reduced C. the gametes are produced via meiosis D. the spores are produced via meiosisarrow_forwardFigure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from the tree b. When the sperm nucleus and the egg nucleus fuse c. When the seeds drop from the tree d. When the pollen tube begins to growarrow_forwardIn 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; microsporesarrow_forward
- In plant life cycles, (a) the first products of meiosis are gametes (b) spores are part of the diploid sporophyte generation (c) the embryo gives rise to a zygote (d) the first stage in the diploid sporophyte generation is the zygote (e) the first stage in the haploid gametophyte generation is the prothallusarrow_forwardA seed protects thea. embryo. b. ovule. c. ovary.d. pollen grain.arrow_forwardWhat is the function of filiform apparatus in an angiospermic embryo sac? (a) Brings about opening of the pollen tube (b) Guides the pollen tube into a synergid (c) Prevents entry of more than one pollen tube into a synergid (d) None of thesearrow_forward
- _______of the pollen grain divides to form two male gametes. (a) Vegetative cell (b) Generative cell (c) Microspore mother cell (d) None of thesearrow_forward3. A. Inside a pollen grain there is a tube cell and generative cell. B. Generative cell divides to produce two sperm cells while the tube cell becomes pollen tube elongates along the style. A.If both statements are correct. B.If statement A is wrong and B is correct. C.If statement A is correct and B is wrong. D.If both statements are wrong.arrow_forwardFruit forms from a flower’sa. ovary.b. sepals.c. carpels.d. stigma.arrow_forward
- The fertilized ovule gives rise to the ________. a. fruit b. seed c. endosperm d. embryoarrow_forwardWhich of these is a condition that makes flowers invariably autogamous ? (a) Dioecy (b) Self incompatibility (c) Cleistogamy (d) Xenogamyarrow_forwardIf 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.arrow_forward
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