2. Some mutant corn plants start seed germination while the kernels are still on the cob, a condition known as 'vivipary. Researchers found that the mutants can't regulate abscisic acid (ABA) and can be of two types: one that can overcome this condition by exogenous application of ABA and another type that cannot. Explain why ABA absence would promote vivipary and how the two types could be explained in terms of gene expression? 3. In 2010, NASA sent Arabidopsis seeds to the International Space station and grew them under zero gravity conditions. To their surprise, the plants germinated and develoned chd

2. Some mutant corn plants start seed germination while the kernels are still on the cob, a condition known as 'vivipary. Researchers found that the mutants can't regulate abscisic acid (ABA) and can be of two types: one that can overcome this condition by exogenous application of ABA and another type that cannot. Explain why ABA absence would promote vivipary and how the two types could be explained in terms of gene expression? 3. In 2010, NASA sent Arabidopsis seeds to the International Space station and grew them under zero gravity conditions. To their surprise, the plants germinated and develoned chd

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter37: Plant Signals And Responses To The Environment

Section: Chapter Questions

Problem 7TYK

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Similar questions

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The immature fruit of the opium poppy produces many chemicals that affect animal nervous systems. In what way might these chemicals benefit the plant?
Please type the answer to all parts of this question Answer the following question about the Quiescent Center (QC) of the root meristem. (a) What is the QC of the root meristem? (b) How is QC identity established? (Describe the plant hormone(s) and genes that are involved in QC development)
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Basil is common in vegetable gardens. Many gardeners grow this plant for its leaves, which provide flavor in sauces and other dishes. Leaf production is higher when young flowers are pruned off the plant before they have a chance to develop. Explain this observation
18.It stimulates biochemical activities that cause observable physiological responses by organisms. a.Auxin b.Hormone c.Insulin d.Gibberelin 19.Which natural methods of asexual reproduction is exhibited by ginger, fern, iris and sugarcane? a.Bulb b.Runner c.Corm d.Rhizome 24.Unlike animal hormones, plant hormones do NOT have definite target areas. a.True b.False Plant senescence is the process of aging in plants. Which plant hormone delays senescence? a. Cytokinin b. Gibberelin c. Jasmonic acid d. Brassinosteroid The following are functions of the stomata except ____________. a. close or open pores to keep the moisture content developed b. open and close the pores in the leaves for an exchange of gases c. allow the plant to take in carbon dioxide and give out oxygen for photosynthesis d. convey water and dissolved minerals from the roots to the rest of the plant