If self-fertilization causes lower fitness than cross-fertilization, under what environmental conditions would self-fertilization be the superior strategy?
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If self-fertilization causes lower fitness than cross-fertilization, under what environmental conditions would self-fertilization be the superior strategy?
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- Please discuss the fitness advantage associated with aiding a related or even an unrelated individual with producing offspring. Please give examples.What is occurring during step 3? - Fertilization - Crossing over - Independent assortment Consider the following case of blending inheritance. A population of plants starts out with an equal number of individuals of heights 40 and 60 cm. The parents mate randomly, and the height of an offspring is exactly equal to the average height of its parents. What is the probability that a 60-cm tall plant mates with a 60-cm tall plant, and the probability that a 40-cm tall plant mates with a 60-cm tall plant?
- Fruit weight is controlled by 4 gene pairs. The homozygous dominant weighs 200 g while the homozygous recessive weighs 80 g. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 - D1D1D2D2D3D3d4d4 x Parent 2 - d1d1d2d2d3d3D4D4 Compute for the contribution of the dominant allele. Compute for the fruit weight of parental 1 and parental 2.A plant is heterozygous for yellow flowers and hairy leaves. This is self-pollinated. What are the expected genotype, phenotype, phenotypic ratio and genotypic ratio in F1? (Red and smooth characters are recessive)Y = yellow, y = green; R = round seed, r = wrinkled seed %3D An individual has the genotype YYRR and has offspring with an individual with the genotype yyrr. If the genes are both expressed with complete dominance, then what phenotype will all the offspring have? Yellow and Wrinkled Yellow and Round Green and Round Green and Wrinkled
- What are alleles? If tall (T) plants are dominant over short(t) plants, what would the alleles and phenotypes be forhomozygous dominant, heterozygous, and homozygousrecessive?In plants known as “ four o’ clocks”, the allele for the dominant red- flower color is is completely dominant over the allele for white-flowers. A gardener allows several heterozygous pink-flowered four o'clock to self pollinate and collects 200 seeds. Identify the flower color phenotypes and theoretical percentage.Fruit weight is controlled by 4 gene pairs. The homozygous dominant weights 200 g while the homozygous recessive weighs 80 g. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2 B1B1B2B2B3B3b4b4 x b1b1b2b2b3b3B4B4 Provide the genotype and phenotype of the F1.
- What is the difference between relative dominance and relative density?Give typing answer with explanation and conclusion What is a phenotype and how is it determined? What is phenotypic plasticity? Over what time scale does phenotypic plasticity act? Why would animals want to have plastic phenotypes?A heterozygous plant with genotype Aa self-pollinates, and then its offspring also self-pollinate. Find the probability that the offspring of the offspring are tall for the following genetics systems. Half of heterozygous plants and one fourth of homozygous plants are tall (it depends on their position in the greenhouse).