What is the best term for describing the genetic advantage in offspring which exhibit more heterozygosity due to outbreeding? inbreeding depression heterosis transgenoisty polymerization
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- Below is a diagram showing decreased fitness before and after a hypothetical bottleneck in which all of the inbreeding depression is due to increased homozygosity for deleterious recessive alleles. The open circles show the average fitness of hypothetical 'mutant-free' individuals that have no deleterious alleles. The shaded circles show the average fitness of individuals produced by random mating. The dark circles show the average fitness of individuals with an Fof 0.25 (equivalent to full-sib matings). In the diagram on the right, imagine that 'before' refers to before genetic rescue has been instituted (that is, before managed gene flow into a small and isolated population). The circles are defined the same as above. Draw what the circles (unfilled, grey filling, and dark filling) would look like in the 'after' portion of the diagram, that is, after a single pulse of gene flow from a small number (~5) of translocated individuals, if fixed genetic load decreases in this population.…How is inbreeding depression measured? With the fixation index Fst No answers are correct With the inbreeding coefficient F By regressing the inbreeding coefficient on survival All of the above With the mean # of lethal equivalentsSometimes gene flow between populations can have negative effects, with one population receiving genes of lower fitness from another population. Which of the following below is a good case example of this observation? O Tibetian highland people interbreeding with lowland people producing children of intermediate hemoglobin proteins OInterbreeding of Texas and Florida Panthers have greater survivorship than inbred Florida Panthers O Male Townshend Warblers out compete male Hermt Warblers and mate with female Hermit Warblers O Wild steelhead interbreeding with captive steelhead produced offspring with lower relative fitness
- Among a particular population of 100 plants, red flowers are dominant and yellow flowers are recessive. F is the dominant allele and f is the recessive allele. 40 plants are homozygous dominant • 44 plants are heterozygous 16 plants are homozygous recessive Use the Hardy-Weinberg equation to calculate the equilibrium frequencies of each genotypeWhat are inbreeding depression?A farmer is raising rabbits. The average body weight in his population ofrabbits is 3 kg. The farmer selects the 10 largest rabbits in his population,whose average body weight is 4 kg, and interbreeds them. If the narrowsenseheritability of body weight in the rabbit population is 0.7, what is theexpected body weight among the offspring of the selected rabbits?
- Dizygotic twinning often runs in families, and its frequency varies among ethnic groups, whereas monozygotic twinning rarely runs in families, and its frequency is quite constant among ethnic groups. These observations have been interpreted as evidence of a genetic basis for variation in dizygotic twinning but little genetic basis for variation in monozygotic twinning. Can you suggest a possible reason for these differences in the genetic tendencies toward dizygotic and monozygotic twinning?p + q = 1 p2 + 2pq + q2 = 1 p is the frequency of the dominant allele q is the frequency of the recessive allele p2 is the frequency of homozygous dominant genotype q2 is the frequency of homozygous recessive genotype 2pq is the frequency of heterozygous genotype Within a population of roses, the color red (R) is dominant over the color white (r). 40% of all the roses are white.a)The percentage of roses in the population that are heterozygous b) The frequency of homozygous dominant individuals =What is the magnitude of inbreeding depression if selfed offspring have four times lower fitness than outcrossed offspring? Under these circumstances, would it be advantageous for a plant to continue self-fertilizing? Explain.
- If p = 0.65 and represents a dominant allele, what is the genotype frequency of heterozygotes if equilibrium is assumed? 0.46 0.42 0.12 0.65Hybrid incompatibility resulting from negative epistasis is know as __________ and is a ______________________ mechanism Group of answer choices a postzygotic isolating mechanism a prezygotic isolating mechanism Haldane's rule Dobzhansky–Muller incompatibilityThere are 1024 individuals with the genotype GG, 512 individuals with a genotype Gg, and 64 individuals with the genotype gg. Useless information to find the dominant allele frequency the recessive allele frequency the homozygous dominant frequency the heterozygous frequency and the homozygous recessive frequency