The two histograms represent the frequency distribution for the two different types of variation. R number of organisms characteristic number of organisms Which of the statements, A to D, about characteristic Q is correct? A controlled by many genes and unaffected by the environment characteristic
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- Which of these is not true of single nucleotide polymorphisms (SNPs)? are single base-pair variations in the genomes of the human population are genetic markers used to study the genetic basis for disease vary from 1-3 bases in length are the most common type of genetic varianceWrite a short explanatory essay on the following statement: “Incases of genetically programmed phenotypic plasticity, naturalselection acts on the norm of reaction. Thus the norm of reactionas a whole—rather than any one phenotype—determines ifselection is positive or negative.”Generally speaking, there are four types of mutations. Which of two of these four have the main effects on fitness? O beneficial O deleterious O lethal O neutral
- A certain form of congenital glaucoma is caused by an autosomalrecessive allele. Assume that the mutation rate is 10-5 and that peoplewith this condition produce, on the average, only about 80% of theoffspring produced by people who do not have glaucoma.a. At equilibrium between mutation and selection, what will the frequencyof the gene for congenital glaucoma be?b. What will the frequency of the disease be in a randomly matingpopulation that is at equilibrium?. A gene called Q has two alleles, QFand QG, that encode alternative forms of a red blood cell protein thatallows blood group typing. A different, independentlysegregating gene called R has two alleles, RC and RD,permitting a different kind of blood group typing. Arandom, representative population of football fanswas examined, and on the basis of their blood typing,the following distribution of genotypes was inferred(all genotypes were distributed equally betweenmales and females):QFQFRCRC 202QFQG RCRC 101QGQG RCRC 101QFQFRCRD 372QFQG RCRD 186QGQG RCRD 186QFQFRDRD 166QFQG RDRD 83QGQG RDRD 83This sample contains 1480 fans in total.a. Is the population at Hardy-Weinberg equilibriumwith respect to either or both of the Q andR genes?b. After one generation of random mating within thisgroup, what fraction of the next generation of football fans will be QFQF(independent of their Rgenotype)?c. After one generation of random mating, what fraction of the next generation of football fans will…Explain why you agree or disagree with each of thefollowing statements:a. We should not worry much about exposure totoxic chemicals because almost any chemical, at alarge enough dosage, can cause some harm.b. We should not worry much about exposureto toxic chemicals because, through geneticadaptation, we can develop immunities to suchchemicals.c. We should not worry much about exposureto toxic chemicals because we can use geneticengineering to reduce our susceptibility to theireffects.d. We should not worry about exposure to a chemical such as bisphenol A (BPA) because it has notbeen absolutely proven scientifically that BPA haskilled anyone.
- In a large, randomly mating population, the frequency of the allele (s)for sickle-cell hemoglobin is 0.028. The results of studies have shownthat people with the following genotypes at the beta-chain locus producethe following average numbers of offspring:Genotype Average numberof offspring producedSS 5Ss 6ss 0a. What will the frequency of the sickle-cell allele (s) be in the nextgeneration?b. What will the frequency of the sickle-cell allele be at equilibrium?Identify a possible advantage and a possible disadvantage of a genetic test that would identify genes in individuals that increase their probability of having Alzheimer’s disease later in life.Trivla Game Show _Make Your Own Tri ngston.schoology.com/common-assessment-delivery/start/4789189591?action=onresume&submissionld=463322566 Dillon WF g Aa v Done In guinea pigs, black hair (B) is dominant to white hair (b) and rough hair (R) is dominant to smooth hair (r). What are all the possible genotypes of a guinea pig that has black, rough hair? (Select all that apply.) O BBRR BBRr BBrr BBRR BbRr O bbRR O bbRr O bbrr O Black O White O Rough OSmooth O Rough O Smooth
- I'm having trouble finding the dependent and independent variables of this scenaro: Average IQ scores for young school children are known to be 100 (SD = 15). However, the literature indicates that children’s intelligence may be decreased if their mothers have German measles during pregnancy. Using hospital records, a researcher obtained a sample of n = 25 school children whose mothers all had German measles during their pregnancies. Do the data indicate that children born to mothers who had German measles during the pregnancy have significantly lower IQ scores than typical young school children?What is the idenpendent and controlled variablePhenotypic plasticity is variation caused by what? Can genotypes have variations or different reaction norms?