Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 35, Problem 5TYU
Supposc a flower had normal expression of genes A and C and expression of gene B in all four whorls. Based on the ABC hypothesis, what vvould be the structure of that flower, starting at the outermost whorl?
- (A) carpel-petal-petal-carpel
- (B) petal-petal-stamen-stamen
- (C) sepal-carpel-carpel-sepal
- (D) sepal-sepal-carpel-carpel
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In some species, such as magnolia, sepals look like petals, and both are collectively called "tepals:' Suggest an extension to the ABC model that could hypothetically account for the origin of tepals.
The normal order of whorls from the flower’s periphery to the center is (a) sepals, petals, carpels, stamens (b) stamens, carpels, sepals, petals (c) sepals, petals, stamens, carpels (d) petals, carpels, stamens, sepals (e) carpels, stamens, petals, sepals
Chapter 35 Solutions
Campbell Biology (10th Edition)
Ch. 35.1 - Prob. 1CCCh. 35.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 35.1 - Prob. 3CCCh. 35.2 - Prob. 1CCCh. 35.2 - Prob. 2CCCh. 35.2 - Prob. 3CCCh. 35.3 - Prob. 1CCCh. 35.3 - Prob. 2CCCh. 35.3 - Prob. 3CCCh. 35.4 - A sign is hammered into a tree 2 m from the tree's...
Ch. 35.4 - Prob. 2CCCh. 35.4 - Would you expect a tropical tree to have distinct...Ch. 35.4 - Prob. 4CCCh. 35.5 - How can two cells in a plant have vastly different...Ch. 35.5 - Prob. 2CCCh. 35.5 - Prob. 3CCCh. 35 - Prob. 35.1CRCh. 35 - Prob. 35.2CRCh. 35 - Prob. 35.3CRCh. 35 - Whht advantages did plants gain from the evolution...Ch. 35 - Prob. 35.5CRCh. 35 - Most of the growth of a plant body is the result...Ch. 35 - Prob. 2TYUCh. 35 - Prob. 3TYUCh. 35 - The phase change of an apical meristem from the...Ch. 35 - Supposc a flower had normal expression of genes A...Ch. 35 - Prob. 6TYUCh. 35 - Which of the following would not be seen in a...Ch. 35 - Prob. 8TYUCh. 35 - EVOLUTION CONNECTION Evolutionary biologists have...Ch. 35 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 35 - SCIENCE, TECHNOLOGY, AND SOCIETY Hunger and...Ch. 35 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 35 - Prob. 13TYU
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- Explain the sequence of events in a flowering plant that begins with formation of a pollen tube and culminates with the formation of a diploid zygote and the 3n cell that will give rise to endosperm in a seed.arrow_forwardMonoecious plants such as corn have either staminate or carpelate flowers. Knowing what you do about the molecular mechanisms of floral development, which of the following might explain the development of single-sex flowers? a. Expression of B-type genes in the presumptive carpel whorl will generate staminate flowers. b. Loss of A-type genes in the presumptive petal whorl will allow C-type and B-type genes to produce stamens instead of petals in that whorl. c. Restricting B-type gene expression to the presumptive petal whorl will generate carpelate flowers. d. All of the choices are correct.arrow_forwardCan you answer all the parts to this question regarding the diagramarrow_forward
- Is this flower (a peace lily) complete or incomplete? explain your reason. note: Complete flowers have all 4 basic floral organs (carpels, stamens, petals, and sepals).arrow_forwardChrysopogon aciculatus is placed under microscope. When crushed, the seed is visible. Apparently, this species of plant is angiosperm. So how do I draw the diagram of the seed(?) for Chrysopogon aciculatus? Do i have to draw just the seed with a fruit coating or do i have to draw the stamen/ovary/stigma etc of Chrysopogon aciculatus' floret?. Attached is a picture of supposedly an angiosperm of Chrysopogon aciculatus , but how do i draw the seed diagram(?)arrow_forwardPlease answer question 1arrow_forward
- What are the symbols of making cross floral diagrams are in these figures?arrow_forward(a) Describe the role of mitosis in the growth of a plant. (b) Explain why there are more cells observed in mitosis in the root tip than in the woody stem.arrow_forwardexplain the following:P→ Parental generation.G → Gametes.F1→ First filial generation.F2→ Second filial generationGenotype (F2 (Phenotype (F2) I chose Stem lengtharrow_forward
- 50. Read the given statements and select the correct option. (i) Darwin and Darwin (1880) found that sensation of unilateral illumination was perceived by the coleoptile tip of canary grass. (i) IAA is universal natural auxin, discovered by Kogl et al. (iii) IBA is both natural and synthetic auxin. (iv) Auxins promote the growth of lateral shoots. (a) Statements (i) and (ii) are correct. (b) Statements (ii) and (iii) are correct. (c) Statements (i), (ii) and (iii) are correct. (d) Statements (i), (ii), (iii) and (iv) are correct.arrow_forwardDiscuss Concepts Compare the size, anatomical complexity, and degree of independence of a Douglas fir female gametophyte and a dogwood female gametophyte. Which one is the most protected from the external environment? Which trend(s) in plant evolution does your work on this question bring to mind?arrow_forwardINTERPRET DATA Flower parts are arranged in four concentric circles: sepals, petals, stamens, and carpel. According to the ABC model of floral organ development in Arabidopsis, class A genes are needed to specify sepals, the A and B genes to specify petals, the B and C genes to specify stamens, and class C genes to specify the carpel. If a mutation occurs in one of the B genes, rendering it inactive, what will the resulting flowers consist of?arrow_forward
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