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- 3) What is the genotypic ratio of a monohybrid cross? 3:1 1:2:1 9:3:3:1 1:13.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant ( How many of the 16 offspring are: tall & red tall & white short & red short & white2) 0,0 0,0 1 The most likely inheritance pattern in the pedigree abolve s:
- 3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent's genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (d) what are the cross over gametes e) what genotype will result in white grains and tall heights (multplie answers) f) if you cross a heterozygote with the same allelic configuration as above, what is the probability that the offspring will have white grain and trall height? Give your answer to number to THREE decimal places not as a percentage (e.g 0.0442) John is heterozygous for brown hair. His wife Jodi is homozygous for brown hair. What offspring phenotypes would be expected from the cross, and in what ratio. (B-brown hair and b-blonde hair). Cross: X Phenotypic ratio:
- What are the phenotypes? What is the ratio of those phenotypes? The phenotypes would be: (a) Yellow with smooth (b) Yellow with wrinkled 3:1 Part 2: Data Tables Table 1: Parent Genotypes: Monohybrid Crosses Generation Genotype of Individual #1 Genotype of Individual #2 P Yy Ss P1 Yy Ss P2 Yy ss P3 Yy SS P4 YY SS Table 2: Generation Data Produced by Monohybrid Crosses Generation Possible Offspring Genotypes Possible Offspring Phenotypes Genotype Ratio Phenotype Ratio P yySs P1 yySs P2 Yyss P3 YySS P4 YYSS Part 2: Post-Lab Questions How much genotypic variation do you find in the randomly picked parents of your crosses? How much in the offspring? Pool all of the offspring from your five replicates. How much phenotypic variation do you find? Is the ratio of observed…1 A B C 5 D 6 7 8 9 10 11 Which of the following best describes the genotype of parents in the pedigree? Female with Long Hair Female with Short Hair Male with Long Hair Male with Short Hair The mother is heterozygous for the long-hair allele, and the father is homozygous for the long-hair allele. The mother is heterozygous for the long-hair allele, and the father is heterozygous for the long-hair allele. The mother is homozygous for the long-hair allele, and the father is homozygous for the long-hair allele. The mother is homozygous for the long-hair allele, and the father is heterozygous for the long-hair allele. Submit3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? TtRr What is the genotype of the homozygous short white flowered plant? ttrr Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (
- What are the possible genotype and phenotype of offspring witha parent of two heterozygous tall pea plant? Legend: T- tall pea plant t- short pea plant 1. identify the genotypes of the parents 2. Complete the punnett square 3. What are the possible genotypes of the offspring? 4. What is the genotypic ratio? 5. What are the possible phenotypes of the offspring? 6. What is the phenotypic ratio? 7. What is the probability of having short trait?| 3 4 |IL 1 I Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? C. What are the expected F2 ratios (use fractions) of round and wrinkled seeds? d. What are the possible F2 combined phenotypes and their expected ratios…1.) A student recently told me that both she and her brother have blue eyes (bb), and that both of her parents are brown-eyed. Using a Punnett square, list the genotypes and phenotypes showing how it's possible for this to happen.