Which of the following statements are true regarding genetic variation in sexual reproduction Genetic variation in the population is generated faster than in asexual reproduction Individuals can acquire combinations of alleles not present in their parents There are more combinations of genotypes in sexual than asexual reproduction Variation generated by sexual reproduction makes it easier for a population to survive environmental changes

Which of the following statements are true regarding genetic variation in sexual reproduction Genetic variation in the population is generated faster than in asexual reproduction Individuals can acquire combinations of alleles not present in their parents There are more combinations of genotypes in sexual than asexual reproduction Variation generated by sexual reproduction makes it easier for a population to survive environmental changes

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter45: Population And Community Ecology

Section: Chapter Questions

Problem 29RQ: Why are polyandrous mating systems more rare than polygynous matings? Only males are capable of...

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Do mutations in body cells contribute to genetic variation? No, the causes of body cell mutations are outside the body and cannot alter DNA. Yes, these body cell mutations lead to mutations in the gametes. No, the mutations cannot be passed to offspring and only affect the individual. Yes, the mutations can be passed on to offspring and contribute to variation in the population. I think it is the 3rd answer because mutations in body cells can't be passed on and only stay with the individual. Please confirm.
The whiptail lizard is an all-female population in which an individual lizard reproduces by cloning itself (by a process called parthenogenesis). Because of this, all surviving whiptail lizards are clones of one another. Which of the following statements is true? I. The absence of sexual reproduction conserves resources and allows the population to thrive better overall. II. The absence of sexual reproduction conserves resources but is detrimental to the long-term survival of the species. III. All members of the population are equally susceptible to parasites and disease. IV. The population can easily adapt to any environmental change. A. I only B. II only C. IV only D. II and III
AKS 7d. Sexual and Asexual reproduction Create a Venn diagram to compare and contrast Asexual and Sexual Reproduction (you should have at least 4 unique characteristics for each reproduction type). AKS 7e. Punnett squares Vocabulary - Matching ____ 1. genotypes made of the same alleles A. alleles ____ 2. different forms of genes for a single trait B. dominant ____ 3. gene that is always expressed C. heterozygous ____ 4. gene that is expressed only in the homozygous state D. homozygous ____ 5. genotypes made of two different alleles E. recessive In corn plants, normal height, N, is dominant to short height, n. Complete these four Punnett squares showing different crosses. Then, highlight in blue all of the homozygous dominant offspring. Use yellow highlights to show all the heterozygous offspring. Leave all the homozygous recessive offspring unshaded. Across between parents of which genotypes would yield 100% heterozygous offspring? 7e1. Codominance and…
Do mutations in body cells contribute to genetic variation? No, the causes of body cell mutations are outside the body and cannot alter DNA. Yes, these body cell mutations lead to mutations in the gametes. No, the mutations cannot be passed to offspring and only affect the individual. Yes, the mutations can be passed on to offspring and contribute to variation in the population.
Based on Standard NGSS MS-LS3-2: Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation. In reference to the attached image, can you create a model that shows how it is possible that the twins ended up with such different traits yet have the same parents? Keeping in mind that the twins are a set of fraternal twins. Note:Required a cause-and-effect relationship between parents and offspring with the appropriate mechanism, and Diagram shows genetic recombination as well as inheritance
Global warming is an issue affecting many species around the world. Warming has caused the temperatures in lakes and rivers to increase and stay elevated for longer periods of time. Select the FOUR numbers that describe the possible effects of global warming on the reproduction of rainbow trout in the wild and on biodiversity. The extra set of chromosomes remains. The extra set of chromosomes is removed. The offspring are diploid (2n). The offspring are triploid (3n). The offspring cannot reproduce. The offspring can reproduce. Biodiversity decreases. Biodiversity increases. Please record the FOUR numbers in ascending order.
Birth Defects and Multiple Births A woman who carries multiple offspring at the same time increases the risk of some birth defects. FIGURE 42.18 shows the results of Yiwei Tang's study of birth defects reported in Florida from 1W6 to 2000. Tang compared the incidence of various defects among single and multiple births. She calculated the relative risk for each type of defect based on type of birth, and corrected for other differences that might increase risk such as maternal age, income, race, and medical care during pregnancy. A relative risk of less than 1 means that multiple births pose less risk of that defect occurring. A relative risk greater than 1 means multiples are more likely to have a defect. FIGURE 42.18 Prevalence, per 10,000 live births, of various types of birth defects among multiple aria single births. Relative risk for each defect is given after researches adjusted for the motor's age, race, previous adverse pregnancy experience, education, Medicaid participation during pregnancy, as well as the infant's sex and number of siblings. 4. Does a multiple pregnancy increase the relative risk of chromosomal defects in offspring?
the area titled Genotype Relative Fitness. Notice that the default is for all three genotypes to be set at 1.0. This indicates that all three genotypes have the same effect on survival and reproduction. Change the Genotype Relative Fitness of the rr genotype to 0.6. This indicates that the rr genotype (white phenotype) has a strong disadvantage over the other type genotypes in terms of survival and reproduction. Start the simulation and let it run for 200 generations. http://virtualbiologylab.org/ModelsHTML5/PopGenFishbowl/PopGenFishbowl.html When you started the simulation, your initial alleles frequencies were: R = 0.5 r = 0.5 What are your allele frequencies after 200 generations of strong selection?
Which of the following statements is an evolutionary advantage of sex and sexual reproduction? A. Sex and recombination results in decreased genetic variation in a population and maintains advantageous traits. B. Sex and recombination can bring beneficial alleles together when producing offspring. C. Sex and recombination results in the inheritance of all the genetic information available from both parents. D. Reproduction is less risky when gametes from two individuals must fuse.
Which of the following is an advantage of sexually reproducing populations over asexually reproducing populations? A. Sexually reproducing populations produce genetically identical offspring. B. Sexually reproducing populations require partners to reproduce. C. Sexually reproducing populations are more resilient against the effects of harmful mutations. D. Sexually reproducing populations do not require partners to reproduce.
66)Parasites are organisms that make a living at the expense of another organism called a host. In populations of hosts and parasites, not all the possible parasite genotypes can successfully infect all the possible host genotypes. The most successful parasite genotypes (i.e. those with the highest fitness) are those that can exploit the most common host genotypes. As a result, the most common host genotypes suffer a decline in fitness. Meanwhile, rare host genotypes are relatively unaffected by parasites and thus enjoy a higher fitness which causes them to become more common. As a host genotype becomes more common, it also becomes a bigger target for parasites and eventually experience a decline in fitness. This is a case of Stabilizing selection Negative frequency dependent selection Disruptive selection Purifying selection Heterozygote advantage
The population risk of NIDDM is highly dependent on the population under consideration; in most populations, this risk is 1%-5%, although it is 6% to 7% in the United States. If a patient has one affected sibling, the risk increases to 10%; an affected sibling and another first-degree relative, the risk is 20%; an affected monozygotic twin, the risk is 50%-100%. 1) Is this a single gene inheritance or multifactorial disease? 2) Is there a strong genetic or environmental cause to the development of this disease? If both genetic and environmental causes are implicated, you have to indicate each of them separately.