Create monohybrid crosses from the following information: 33. Homozygous monkey toes with non-monkey toes. 34. What are the genotypes and phenotypes of number 33? 35. Both heterozygous brown eyes. 36. What are the genotypes and phenotypes of number 35? 37. Heterozygous large size with small size. 38. What are the genotypes and phenotypes of number 37?
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- Fill in the punnett square and answer the questions. R = round, r = wrinkled, Y = yellow, y = green. Ry Ry ry ry RY Ry RY Ry Genotype: RRYy phenotype: yellow and round 2. Is this a monohybrid or a dihybrid cross? 3. What are the two dominant alleles? 4. What are the two recessive alleles?The presence of freckles is a dominant trait. Cross a homozygous freckled man with a homozygous nonfreckled woman. What are the genotypes and phenotypes of their offspring? a. Cross two of the offspring from the above cross (sorry about the incest). What are the genotypes and phenotypes or their offspring? b. Cross a heterozygous freckled man with a nonfreckled woman. What are the genotypes and phenotypes of their offspring?Using the following information perform following crosses using the forked line and predict all possible phenotypes types of the offspring. List the number and description of the phenotypes of the offspring. 1. aa BB Cc Dd Ee X aa bb Cc Dd EE 2. Ff Rr Gg dd Bb X Ff RR Gg Dd Bb 3. Dd gg JJ bb Hh Ee X DD GG Jj Bb Hh Ee
- In a test cross, an individual dominant for a certain trait ( whether homozygous or heterozygous is unknown) is crossed with a homozygous recessive individual. A plant with spherical seeds is crossed with another plant. If the genotypes and phenotypes of the offspring are 100% heterozygous and 100% dominant, what were the genotypes of the parents? (hint: try multiple crosses until you find what works) If the genotypes and phenotypes of the offspring are 50% heterozygous spherical seeds and 50% wrinkled seeds, what were the genotypes of the parents?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…If a homozygous tall pea plant is crossed with a homozygous shortpea plant, what are the possible genotype and phenotype of theoffspring? Legend: T- tall pea plant t- short pea plant Genotypes of the parents: TT x tt Question to answer ff: 1. What is the genotypic ratio? 2. What are the possible phenotypes of the offspring? 3. What is the phenotypic ratio?
- The allele for hitchhiker’s thumb (h) is recessive to straight thumb (H). If a man and his wife are both homozygous recessive, will any of their offspring potentially have hitchhikers thumb? 1.What genotype(s) must the offspring have in order to have the phenotypic trait of hitchhiker’s thumb? 2. Do a cross to determine all potential hitchhiker’s thumb genotypes and phenotypes for the offspring of this man and woman. Is it possible for any offspring of the F1 generation to have hitchhiker’s thumb?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?Which groups of individuals must show the same phenotype in order to produces a 15:1 phenotypic ratio from a dihybrid cross (CcDd x CcDd) if the trait is affected by duplicate dominant epistasis? Choose the one best (complete) answer. Group of answer choices 1.C_D_, C_dd, and ccD_ 2.C_dd, ccD_, and ccdd 3.C_D_ and ccD_ 4.C_D_ and ccdd 5.C_D_ and C_dd
- When crossing a true breeding white mouse with a true breeding brown mouse your friend tells you she recovered all black mice. But then when she crosses the F1 mice to each other she recovered 28 black mice, 8 brown mice, and 13 white mice. Can you help her explain these results? (Type out the cross and include genotypes of as many mice as possible. What phrase best describes this phenomenon? How many genes are involved are they linked or unlinked? Etc.)Professor John decided to breed bunnies during stay-at-home because why not. She performed the following cross:Parents:brown fur, gray nose x white fur, gray noseOffspring:3/8 white fur, gray nose1/8 white fur, white nose3/8 brown fur, gray nose 1/8 brown fur, white noseBased on the phenotypes of the offspring, what are the genotypes of the parents? Make sure you define your genotypes (ie B is brown fur, b is white fur)RR is homozygous red trait for flower color and rr is homozygous white trait for color. If one parent is homozygous red and another is homozygous white, complete the first and second generation crosses (cross two offsprings from the first generation to get the second generation). Which of the following represents the offsprings of the second generations? A)RR, Rr, Rr, rr B)Rr, Rr, RR, RR C)rr, rr, Rr, Rr D)rr, rr, Rr, Rr