+ Short women (recessive) Q3: For pea plant, yellow seeds coat are dominant over green seed coat, and long stems are dominant over short stem. Determine the phenotype and genotype rations of the F1 offspring from cross-pollination of a homozygous yellow seed coat, a homozygous long stem plant.
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- 1-Show the results of a dihybrid cross for the F1 and F2 generation between P generation of a pea plant that is homozygous dominant for purple flower and yellow pea seed with another pea plant that is homozygous recessive for white flower and green pea seed. Clearly show the cross indicating BOTH genotype and phenotype for each generation. How many offspring in the F2 generation will have these phenotypes? 2-What is the probability of a woman who is a carrier for the blood disease hemophilia producing a son with hemophilia if she marries a man who does not have hemophilia? What is the probability of her daughters having hemophilia? Explain why the probability of getting this disease is different for sons versus daughters in this case. Your work should clearly indicated sex, genotype and phenotype (carrier or affected).homozygous recessive: 3) Round seeds are dominant over wrinkled seeds in pea plants. Fill in the Punnett square and determine the expected genotypes and phenotypes of the F₁ generation by crossing homozygous recessive and heterozygous parents. J Possible genotypes of offspring: Possible phenotypes of offspring: Percentage of offspring that are round: % of offspring that are homozygous dominant: heterozygous: J j J j J j j J j J j Fi generation If there were 3500 seeds collected, predict how many would be round? Predict how many seeds would be homozygous dominant? homozygous recessive: % wrinkled: % % homozygous recessive: wrinkled? heterozygous? % %x² R AA E Paragraph 255 129 112 1 heavy, green, long heavy, green, ovate heavy, yellow, ovate heavy, yellow, long light, yellow, oblate V light, yellow, long light, green, long light, green, ovate Normal No Spacing In an East Indian mango, three genes are linked on the same chromosome. Heavy bloom is dominant to light bloom, skin that is green is dominant to skin that is yellow, and fruit with a long shape is dominant to ovate shape. A plant that is true-breeding for the dominant traits was crossed to a light, yellow and ovate fruit. The F1 plants were then testcrossed to light, yellow and ovate fruit. The following results were obtained: 251 111 133 21 Styles Heac a) Diagram the crosses for the parental generation and F1 test cross. b) Construct a genetic map that shows the order of these three genes and the distances between them.
- Use a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous). What is the phenotypic ratio of the offspring?Refer to question 5. Assuming complete dominance, the F2 generation will show a phenotypic ratio of ________. a. 3:1 b. 9:1 c. 1:2:1 d. 9:3:3:1 Question No. 5 5. The offspring of the cross AA aa are ________. a. all AA b. all aa c. all Aa d. half are AA and half are aaThe dominant C allele of a gene that controls color in corn produces kernels with color; plants homozygous for a recessive c allele of this gene have colorless or white kernels. What kinds of gametes, and in what proportions, would be produced by the plants in the following crosses? What seed color, and in what proportions, would be expected in the offspring of the crosses? a. CCCc b. Cccc c. CcCc
- Several alleles affect traits of roses, such as plant form and bud shape. Alleles of one gene govern whether a plant will be a climber (dominant) or shrubby (recessive). All F1 offspring from a cross between a true-breeding climber and a shrubby plant are climbers. If an F1 plant is crossed with a shrubby plant, about 50 percent of the offspring will be shrubby; 50 percent will be climbers. Using symbols A and a for the dominant and recessive alleles, make a Punnett- square diagram of the expected genotypes and phenotypes the cross between the F1 offspring and the shrubby plant.Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. 100 percent yellow-green seeds 100 percent yellow seeds 50 percent yellow, 50 percent green seeds 25 percent green, 75 percent yellow seedsPa × PP Dd 6/6 - Long beak Short beak 7. What percentage of the offspring will have a homozygous dominant genotype? 8. What will be the ratio of long beaks to short beaks in the offspring? LI x 11 9. What percentage of the offspring will White flowers Purple flowers have purple flowers as their phenotype? 10. What percentage of the offspring will have a heterozygous genotype? pp х x PP 11. What percentage of the offspring will Dark eyes Dark eyes have a heterozygous genotype?
- 1- In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two different forms of the same gene (seed color), they are alleles. Use a Punnett square to show a cross between two heterozygous pea plants. What are the phenotype(s) of the offspring? What are the genotype(s) of the offspring? 2- In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two different forms of the same gene (seed color), they are alleles. Use a Punnett square to show a cross between two heterozygous pea plants. What are the phenotype(s) of the offspring? What are the genotype(s) of the offspring? Use the information below to answer questions 3-6 There may be a number of possible alleles for a given gene within a population. In a multiple allele system the dominance relationships between the various alleles must be considered. One of the more familiar examples of a multiple allelic system is that of the human ABO blood group. The gene…4. What are the possible phenotypes and genotypes of the F1 generation if the P generation consisted of the following cross: a plant that is homozygous dominant for flower color and homozygous dominant for pod color was crossed with a plant that is heterozygous for flower color and homozygous dominant for pod color? Dominant for flower color – P (purple) Recessive for flower color = p (white) Dominant for pod color =G (green) Recessive for pod color = g (yellow) %3D P1: PP X GG Рр X GG PG PG PG PG PG PPGG PPGG PPGG PPGG PG PPGG PPGG PPGG PPGG PPGG PPGG Pp pG PPGG PpGG PPGG PpGG Genotypes: Phenotypes: Genotypic Ratio: Phenotypic 田. Jimsom. weed plants can produce purple or white flowers and spiny or smooth seed pods. A purple spiny plant is crossed with a white spiny plant. This cross produces: 89 purple spiny; 92 white spiny; 31 purple smooth and 27 white smooth plants. What are the genotypes of the parental plants and the progeny plants? Use the letters P/p for flower color and S/s for pod texture Parent #1 –genotype:_________________________________; Parent #2 –genotype: ______________________________ b. Offspring plants – genotypes and phenotypes c. Calculate the recombination frequency using these results_________________________________ i need help finding the right answer and i need an explation on how you got it so i understand and please do it with a punnet square and show the calutions step by step