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A: Question - Two examples that show deviation or extensions of simple Mendelian genetics.
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- The following table shows the number of dogs for certain tail lengths in a population of dogs. Tail Length Number of Dogs very short (less than 1 inch) 2 short (1–5 inches) 5 medium (5–10 inches) 15 long (10–15 inches) 5 very long (15–25 inches) 2 Based on this data, what type of trait is tail length in dogsSuppose that a team of researchers analyzes the heritability of high SAT scores and assigns a heritability of 0.75 for this ability. The team also determines that a certain ethnic group has a heritability value that is 0.12 lower compared with that of other ethnic groups. The group concludes that there must be a genetic explanation for the differences in scores. Why is this an invalid conclusion?If there is no genetic variation within a population for a given trait, what is the heritability for the trait in the population?
- The narrow-sense heritability for a trait is 0.4 and the selection differential is 0.5. What isthe predicted response to selection?Saying that a quantitative trait follows a continuum means thata. the numerical value for the trait increases with the age ofthe individual.b. environmental effects are additive.c. the phenotypes for the trait are continuous and do not fallinto discrete categories.d. the trait continuously changes during the life of an individual.For many quantitative traits, genotypes and phenotypes tend tooverlap becausea. the trait changes over time.b. the trait is polygenic.c. environmental variation affects the trait.d. both b and c are true.
- Ancestry estimation never results in the misidentification of individuals from mixed populations and groups that have scarce representation in forensic databases. A.True B. FalseA derived trait ... Group of answer choices A: is something we develop in our lifetime and pass on to our children B: All of these answers are true C: shares characteristics with an ancestral trait, but has adapted differently among different species. D: is the same thing as an analogous trait.A population of dragons or Varanus dragonus has two alleles B and P encoding for phenotypes blue and purple scales, is dominant over B. You have population of 345 individuals. PP = 100, BP; =90 , and BB = 155 . What is the frequency of the P allele? Please use and round to four decimal points.
- Which of the following are supported explanations for the evolution of complex traits? A) incremental changes each providing a benefit B) a trait origiannly selected for a specfic function adopts a new function as a consequence of selectionThe following variances were calculated for two traits in a herdof hogs.Trait VP VG VABack fat 30.6 12.2 8.44Body length 52.4 26.4 11.70 Which of the two traits will respond best to selection by abreeder? Why?c) If no genetic variation was observed within a particular population for a given trait, what will be the computed broad sense heritability value for the trait in the population? Show solution to justify your answer.