The diploid number for the tomato, a eudicot, is 24. One of its pollen grains has ________ chromosomes, and the nutritive tissue of the seed has ________ chromosomes
A) 12… 12
B) 12… 24
C) 24… 24
D) 24… 36
D
You might also like to view...
What kind of pathogen would retain its ability to cause infections after being treated with powerful proteolytic chemicals that would destroy all proteinaceous material?
A. A virus B. A prion C. A fungus D. A bacterium E. A viroid Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about viroids? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
How could a plant adapt to reduced sunlight in a dense forest?
a. The plant could cling to trees and grow upward. b. The plant could develop broader leaves. c. The plant could develop more roots. d. Both (a) and (b) are correct
In antibody-dependent cytotoxic allergic reactions (type II), the binding of _____ to targeted cells results in lysis of those cells.
A. antibodies B. antigens C. helper T cells D. histamine
Phospholipids assemble spontaneously into bilayers driven by the attraction of their "tail" portions to each other and of their "head" portions to each other. The "head" portions are:
A) hydrophobic. B) composed of carbon-hydrogen chains. C) hydrophilic. D) nonpolar. E) directed away from intra- and extracellular fluid.