Please repost, Q:Fruit flies are unusual in that the male fruit flies do not undergo crossovers during meiosis. Describe the roll of crossing over in creating gametes with combinations of alleles that are different from those of the parent and of the other gametes produced by that parent. 7. a. Why doesn't the recessive gene disappear from the population? of w = 5/18 = 0.28, Now, lets suppose we come back a generation later and check the genotypes of the new pea plants that now make up the population. What is the probability that this mutant allele will eventually go to fixation? What will be the allele frequencies of R and r in the 20-member founder population? 5 d) crossing over. In the United States, PKU is detected in approximately 1 in 10,000. And all of these populations are likely to be evolving for at least some of their genes. It yields gametes with random combinations of maternal and paternal chromosomes. 3.What type of selection would most likely benefit heterozygous individuals and which will result in a population losing alleles: directional, disruptive, or stabilizing? a. selection b. allele flow c. mutation d. non-random mating e. genetic drift. D. The size of an idealized randomly-mating population losing heterozygosity at the same rate as the actual population. C) Stabilizes the genetic variation in a population. The cystic fibrosis allele should either disappear or increase in frequency depending on chance as well as on tuberculosis prevalence and death rate. Individuals aren't allowed to "choose" a mate 2.NO NATURAL SELECTION-all memebers of the parental generation survive and contribute equal number of gametes to the gene pool, no matter what the genotype the individuals would you expect to be homozygous dominant? a) Gene pools will become more different b) Gene pools will become more similar c) Gene pools will remain the same, Consider a rare deleterious recessive allele for a specific gene/locus. Mitosis, Meiosis, and Inheritance | Learn Science at Scitable - Nature (CLO2) (2points) O Casting. Please purchase a subscription to get our verified Expert's Answer. (only answer this question number 1, below is a data) I suspect thatthe alleles occur in different frequencies in this second population. 2. There has been a change in allele frequencies in the population over generations, soby the definition of microevolutionwe can say that the population has evolved. It is caused by a defective, recessive allele. What is the difference between allele and genotype frequency. It is, Q:hello, theres this question I need help on but I dont want no google help with! If alleles in the gamete pool exactly mirror those in the parent generation, and if they meet up randomly (in an infinitely large number of events), there is no reasonin fact, no wayfor allele and genotype frequencies to change from one generation to the next. If gametes from a gene pool combine randomly to make only a small number of zygotes, the allele frequencies among the zygotes may be different than they were in the gene pool because: A: The effects of natural selection are more pronounced in small populations.
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if gametes from a gene pool combine randomly