Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 10, Problem 10SQ
Summary Introduction
Introduction: ABC genes’ expressions are studied in
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The expression of ABC genes______ . a. occurs in layers of an onion b. controls flower formation c. causes mutations in flowers
Tom studies the floral identity genes. He found a mutant only develop flowers with two whorls of sepals and two whorls of carpels. Which may class(s) of floral homeotic genes be affected based on the ABC model? ______________.
(A) A class genes
(B) B class genes
(C) C class genes
(D) E class genes
2. Certain mutations in thale cress cause excess auxin production. Predict the impact of these mutations on the plants’ phenotype.
Chapter 10 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Gene expression does not vary by ___ . a. cell...Ch. 10 - Binding or ___ to ___ in DNA can increase the rate...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 4SQCh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Prob. 6SQCh. 10 - Prob. 7SQ
Ch. 10 - Prob. 8SQCh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SQCh. 10 - Prob. 11SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Prob. 13SQCh. 10 - Which of the following statements is incorrect? a....Ch. 10 - Prob. 15SQCh. 10 - Explain why somebut not allof an organism's genes...Ch. 10 - Do the same mechanisms that govern gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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- The monopteros mutant (a) lacks a primary root (b) develops normally until the plant becomes reproductive (c) has abnormal leaf morphogenesis (d) was discovered in rice after its genome was sequenced (e) is one of only two developmental mutants known in Arabidopsis.arrow_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_forwardMutation is: A. a factor responsible for plant growth B. a change which affects the offspring of F2 generation only C. a change that is inherited D. a change which affects the parentsarrow_forward
- Pollen contains the complete genetic material of the plant and is airborne. Describe the ways in which the spread of transgenes via pollen can be contained.arrow_forwardExplain when in nature seedlings are exposed to dark vs. light environments and connect this to an adaptive evolutionary explanation for why seedlings respond in different ways to dark vs. light environments in regards to pigmentation. (3 pts)arrow_forward1a.Discovery of genes controlling Gibberellic Acid (GA) synthesis and perception became very important during the Green Revolution, and remain important today. Why? Select one: a. Mutants with reduced GA levels are dwarfs. Many dwarf plants were important for the Green Revolution because the shorter plants can invest more energy into economically important parts like seeds (instead of stem length). b. Mutants with reduced GA levels are more resistant to herbivore damage (like caterpillars), increasing plant yields. c. Mutants with reduced GA levels allowed farmers to control fruit ripening more accurately. d. Mutants with reduced GA levels have increased photosynthesis 1b. What features are important for overall plant form? Select one: a. Iterative development and capillary action b. Iterative development and apical dominance c. Apical dominance and stomatal conductance d. Phyllotaxis and capillary actionarrow_forward
- Plants and animals usually battle each other; describe why and how this occurs. Once animal-pollinated flowers evolved, a new type of plant–animal interaction was possible; describe it. How is it possible for a mutation in aplant to be beneficial for both the plant and for an animal?arrow_forwardCertain mutations in common wall cress (Arabidopsisthaliana) cause excess auxin production. Predict theimpact of these mutations on a plant’s phenotype.arrow_forwardThe trait of male sterility in corn was used to a. avoid self-pollination b. be susceptible to a fungus c. make harvesting easier d. prevent rotting of ears e. produce taller plantsarrow_forward
- in flowering control of plant, describe a situation wherein there are mutations in at least one or all of the genes responsible for control of the floral development.arrow_forwardHi can you please answer the question on the image about the S protein in plants as a way of self-incompatibility also, what is structure how angiosperm and ferns disperse.?arrow_forwardA) Using the information/image provided, why could the researchers rule out pollinator selection as a reason for flower color variation? B) What must be true about the flowers in Boechera stricta? A) Plants have both male and female flowers that are reproductively mature at the same time. B) Plants have both male and female flowers that are reproductively mature at different times. C) Plants produce either male or female flowers C) If the scientists' hypothesis is true, what type of herbivore defense is flower pigmentation in this mustard? either constitutive or induciblearrow_forward
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