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 11, Problem 1ITD
Summary Introduction
To review:
The highest and lowest percentage of male offspring per female parent at
Introduction:
Aphids are one of the pest insects that are responsible for damaging the crops. The species reproduce in response to photoperiodism. They produce wingless females giving birth to offspring in absence of male gamete in spring and summer and lay eggs only in winter.
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Most eukaryotic organisms use sexual reproduction as their primary means of perpetuating their species. Gametes are formed via meiosis. However, some species primarily reproduce via asexual means. Reproduction is accomplished via mitosis. Aspen trees most commonly reproduce by such asexual methods of cloning.What are the advantages and disadvantages of reproduction by asexual means?
Why do some species reproduce in this manner?
Why don't all species?
The purple sea urchin (Strongylocentrotus purpuratus) and a sympatric species known as the red sea urchin (Strongylocentrotus franciscanus) release their gametes into the Pacific Ocean at the same time, but the sperm cells of each species fail to fertilize the egg cells of the other species due to different membrane proteins. This prevention of interspecific fertilization in sea urchins is:
a post-zygotic barrier known as F1 hybrid inviability
a pre-zygotic barrier known as habitat isolation
a post-zygotic barrier known as F1 hybrid sterility
a pre-zygotic barrier known as gamete isolation
a pre-zygotic barrier known as temporal isolation
If red vizcacha rats (Tympanoctomys barrerae) have 100 autosomes and 2 sex chromosomes in each of their diploid somatic cells, then they must have:
only 102 chromosomes in their haploid germ cells
only 100 chromosomes in their haploid germ cells
only 52 chromosomes in their haploid germ cells
only 51 chromosomes in their haploid germ cells
only 50 chromosomes in their haploid germ cells
Chapter 11 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 11.1 - How does the outcome to meiosis differ from that...Ch. 11.1 - Prob. 2SBCh. 11.1 - Prob. 3SBCh. 11.2 - Prob. 1SBCh. 11.2 - Consider an animal with six pairs of chromosomes;...Ch. 11.3 - Prob. 1SBCh. 11 - The chromosome constitution number of this...Ch. 11 - Which of the following is not associated with...Ch. 11 - Chiasmata: a. form during metaphase II of meiosis....Ch. 11 - If 2n is four, the number of possible combinations...
Ch. 11 - Prob. 5TYKCh. 11 - The DNA content in a diploid cell in G2 is X. If...Ch. 11 - Metaphase in mitosis is similar to what stage in...Ch. 11 - In the human sperm: a. there must be one...Ch. 11 - In plants, the adult diploid individuals are...Ch. 11 - Prob. 10TYKCh. 11 - Discuss Concepts You have a technique that allows...Ch. 11 - Discuss Concepts One of the human chromosome pairs...Ch. 11 - Prob. 13TYKCh. 11 - Prob. 14TYKCh. 11 - Prob. 15TYKCh. 11 - Prob. 1ITDCh. 11 - Prob. 2ITD
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