Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 7, Problem 2RQ
What is a likely evolutionary advantage of sexual reproduction over asexual reproduction?
a. sexual reproduction involves fewer steps
b. less chance of using up the
c. sexual reproduction results in greater variation in the offspring
d. sexual reproduction is more cost-effective
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What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a. Sexual reproduction involves fewer steps. b. There is a lower chance of using up the resources in a given environment. c. Sexual reproduction results in variation in the offspring. d. Sexual reproduction is more cost-effective.
Is this true or false?
a. Fertilization is followed by a cleavage, a period of rapid cell division without growth.
b. From the process above, this results in the production of a large number of cells called blastomeres.
c. In sexual reproduction, the offspring have the same combinations of genes as their parents.
d. Sequential hermaphroditism occurs when an animal is one sex during one phase of its lifecycle and the opposite sex during another phase
The number of chromosomes present in eurkaryotic cells
a. is consistent during the life cycle
b. is haploid among sexually reproducing forms and diploid if the reproduce sexually
c. is double by fertilization and cut in half by meiosis
d. is dependent on the age of the tissue
Chapter 7 Solutions
Concepts of Biology
Ch. 7 - Figure 7.2 If a mutation occurs so that a fungus...Ch. 7 - What is a likely evolutionary advantage of sexual...Ch. 7 - Which type of life cycle has both a haploid and...Ch. 7 - Which event leads to a diploid cell in a life...Ch. 7 - Meiosis produces daughter cells. a. two haploid b....Ch. 7 - At which stage of meiosis are sister chromatids...Ch. 7 - The part of meiosis that is similar to mitosis...Ch. 7 - If a muscle cell of a typical organism has 32...Ch. 7 - The genotype XXY corresponds to: a. Klinefelter...Ch. 7 - Abnormalities in the number of X chromosomes tend...
Ch. 7 - Aneuploidies are deleterious for the individual...Ch. 7 - Explain the advantage that populations of sexually...Ch. 7 - Describe the two events that are common to all...Ch. 7 - Explain how the random alignment of homologous...Ch. 7 - In what ways is meiosis II similar to and...Ch. 7 - Individuals with trisomy 21 are more likely to...
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- How do you expect Kartagener syndrome leads to infertility? A. The lack of a plasma membrane means that pathogens and foreign substances can permeate the sperm and damage the DNA B. The lack of microtubules mean the sperm do not have tails and cannot swim to fertilize the egg C. The lack of dynein means that the sperm cannot bend their tails to swim and fertilize the eggarrow_forwardYou are studying reproduction in starfish (also known as sea stars). You are able to successfully extract sperm and eggs from individuals in the lab and artificially fertilize the eggs. What is the first thing you expect to see in the zygote/embryo after successful fertilization? Group of answer choices a. development of organs b. development of a barrier against sperm entry c. rapid cell division WITHOUT growth d. rapid cell division with growtharrow_forwardWhich of the following features does not differentiate asexual reproduction from sexual reproduction? Asexual reproduction involves a single parent but it is not the case in sexual reproduction. Sexual reproduction does not involve gamete formation but asexual reproduction does. Asexual reproduction does not involve mitosis while sexual reproduction does. A. I and II B. II and III C. I and III D. I, II and IIIarrow_forward
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