Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 30, Problem 14TYK
Design an Experiment Experiments on the orange bread mold Neurosporacrassa, an ascomycete, were pivotal in elucidating the concept that each gene encodes a single enzyme. As N. crassa ascospores arise through meiosis and then mitosis in an ascus, each ascospore occupies a particular position in the final string of eight spores the ascus contains:
This quirk of ascospore development was extremely useful to early geneticists, because it vastly simplified the task of figuring out which alleles ended up in particular ascospores following meiosis. Recalling genetics topics discussed in Chapter 11, why was the analysis easier?
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Alternation of generations means
-One phase of the life cycle is photosynthetic and the other is heterotrophic.
-One phase of the life cycle is unicellular and the other is multicellular.
-One phase of the life cycle takes place on land and the other in water.
-One phase of the life cycle is multicellular diploid and the other is multicellular haploid.
-One phase of the life cycle is motile and the other is stationary.
no need to explain just need to know if its a,b c, or d
1.) Alternation of generation refers to the alternation of diploid and haploid generation. What is the difference between the alternation of generation in moss and pine?
a.) In moss, gametophyte is dominant; whereas, in pine, sporophyte is dominant.
b.) In moss, sporophyte is dominant; whereas, in pine, gametophyte is dominant.
c.) In moss, gametophyte is dependent on sporophyte; whereas, in pine, sporophyte is dependent on gametophyte.
d.) In moss, meiosis occurs during gamete formation; whereas, in pine, it occurs in zygote formation.
2.) Meiosis involves two phases, meiosis I and meiosis II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic division of the primary spermatocyte results in two secondary spermatocytes. .What is the result of the first meiotic division of the primary oocyte?
a.) two secondary oocytes
b.) two polar bodies
c.) two ovum
d.) one secondary oocyte and…
Chapter 30 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 30.1 - Prob. 1SBCh. 30.1 - Prob. 2SBCh. 30.1 - Prob. 3SBCh. 30.2 - Prob. 1SBCh. 30.2 - Prob. 2SBCh. 30.3 - Prob. 1SBCh. 30.3 - Prob. 2SBCh. 30.4 - Prob. 1SBCh. 30.4 - Prob. 2SBCh. 30 - Prob. 1TYK
Ch. 30 - Prob. 2TYKCh. 30 - Prob. 3TYKCh. 30 - Prob. 4TYKCh. 30 - Prob. 5TYKCh. 30 - A mushroom is: a. the food-absorbing region of an...Ch. 30 - Prob. 7TYKCh. 30 - Prob. 8TYKCh. 30 - Prob. 9TYKCh. 30 - In a college greenhouse, a new employee observes...Ch. 30 - Prob. 11TYKCh. 30 - Prob. 12TYKCh. 30 - Prob. 13TYKCh. 30 - Design an Experiment Experiments on the orange...Ch. 30 - Prob. 15TYKCh. 30 - Prob. 1ITDCh. 30 - Prob. 2ITD
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