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- Diagram the P1 and F1 crosses, using Mendelian notation, to show the possible genotypes found in each generation. (Remember a diagram is just the cross itself, not the progeny).What was the first filial (F1) generation in Mendel's experimentExplain the importance of Mendel’s inclusion ofreciprocal crosses within his controlled breedingprogram of pea plants.
- Correlate Mendel's postulates obtained from his monohybrid crosses with what is now known as homologous chromosomes, genes, and alleles.Mendel describes subjecting each of the 34 varieties of peas he obtained to a two-year trial. During this time he let the plants self-fertilize and observed their offspring. What was he looking for, and what was the purpose of doing this two-year trial? Explain what Mendel means when he writes that the 3:1 ratio observed in the first generation from the hybrids "resolves itself" into a ratio of 2:1:1What could be the genotypic and phenotypic ratios for a typical mendelian trait showed in the picture?
- State what percentage of F2 individuals in Mendel’s crosses were heterozygousWhat was the second filial (F2) generation in Mendel's experiment?Mendel crossed peas having green seeds with peas having yellow seeds. The F1 generation produced only yellow seeds. In the F2, the progeny consisted of 6022 plants with yellow seeds and 2001 plants with green seeds. Of the F2 yellow-seeded plants, 519 were self-fertilized with the following results: 166 bred true for yellow and 353 produced an F3 ratio of 3/4 yellow: 1/4 green. Explain these results by diagramming the crosses.
- Mendel performs a cross using a true-breeding pea plant with round, yellow seeds and a true-breeding pea plant with green, wrinkled seeds. What is the probability that offspring will have green, round seeds? Calculate the probability for the F1 and F2 generations.This question deals with Mendelian Genetics. Read each part carefully before you answer it. In the following questions, assume green pea pods are dominant over yellow pea pods. a) If a pea plant that is Heterozygous for pod color is crossed with a pea plant with yellow pods, what do you expect to see in the offspring (the f1 generation)? Specifically, what genotypes, what phenotypes, and in what ratios? (Use G for the green pod gene and g for the yellow pod gene.) (It is usually helpful to write out all the possible genotypes and give the phenotype for each genotype before answering the specific question.)Write out Mendel’s first and second laws (also known as his four postulates) and provide one piece of evidence from his work that supports each law.