Practice Prob 1. For each genotype below, indicate whether it is heterozygous (He) or homozygous (Ho) AA Ee li Mm Bb ff Jj kk nn Ce Dd G HH 00 LI Pp 2. For each of the genotypes belo w determine what phenotypes would be possible. Purple flowers are dominant to white PP Brown eyes are dominant to blue BB Pp Bb PP bb Bobtails are recessive (to long tails) TT Round seeds are dominant to wrinkled RR Rr IT 3. For each phenoty pe below, list the genotypes (remember to use the letter of the dominant trait) Straight hair is dominant to curly straight Tail spikes are dominant to plain tails spikes straight spikes curly plain 4. Set up the Punnet squares for each of the crosses listed below. Round seeds are dominant to wrinkled. Rr x rr What percentage of the offspring will be round? Rr x Rr What percentage of the offspring will be round? RR x Rr What percentage of the offspring will be round?

Practice Prob 1. For each genotype below, indicate whether it is heterozygous (He) or homozygous (Ho) AA Ee li Mm Bb ff Jj kk nn Ce Dd G HH 00 LI Pp 2. For each of the genotypes belo w determine what phenotypes would be possible. Purple flowers are dominant to white PP Brown eyes are dominant to blue BB Pp Bb PP bb Bobtails are recessive (to long tails) TT Round seeds are dominant to wrinkled RR Rr IT 3. For each phenoty pe below, list the genotypes (remember to use the letter of the dominant trait) Straight hair is dominant to curly straight Tail spikes are dominant to plain tails spikes straight spikes curly plain 4. Set up the Punnet squares for each of the crosses listed below. Round seeds are dominant to wrinkled. Rr x rr What percentage of the offspring will be round? Rr x Rr What percentage of the offspring will be round? RR x Rr What percentage of the offspring will be round?

Name: Genetics Practice Problems1. For each genotype below, indicate whethe
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Description: Genetics Practice Problems1. For each genotype below, indicate whether it is heterozygous (He) or homozygous (Ho)AABbEeliMmfJjnnCeGGkk00DdHHLIPp2. For each of the genotypes below determine what phenotypes would be possible.Purple flowers are dominan

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter19: The Evolution Of Populations

Section: Chapter Questions

Problem 18CTQ: Imagine you are trying to test whether a population of flowers is undergoing evolution. You suspect...

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Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. 1. What are the genotypes of the offspring? Why? 2. What are the genotypes of the offspring? Why?
Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. What are the phenotypes of the offspring?
Solving complex genetic problems with the rules of probability (3 traits) 1. Calculate the probability of getting an offspring of pea plant with the genotype, PpyyRr, when crossing PpYyRr and ppyyrr. Show your work. 2. States the phenotypes of the parents and offspring.
Multiple choice Choose only the correct answer. 1. What types of gametes would be produced by a plant of the genotype TtRr? * a. Tt and Rr only b. TR and tr only c. TR, Tr, tR, and tr d. Tr, TR, and tr only 2. The letter A represents the gene for a dominant trait and the letter a represents the gene for its recessive allele. Which statement concerning the offspring of the first generation is most likely correct if Aa mates with aa? * a. All of the offspring will exhibit the dominant trait. b. All of the offspring will exhibit the recessive trait. c. The recessive trait will show up in only 50% of the offspring. d. The dominant trait will show in only 75% of the offspring. 3. If you have tossed the coin and it lands head six times straight, the seventh toss has what probability of landing tails? * a. 100% b. 50% c. 20% d. 0% 4. A letter from a grandmother… My daughter is type A, my grandson is type B+. We do not know the types of the two gentlemen in question...my question is…
Question:- For a simple cross between a purple-flowered plant and a white-flowered plant, where purple is dominant over white. a. Show the F2 in a Punnett square. What are the proportions of genotypes and phenotypes? Express as fractions, decimal fractions and ratios. b. Now imagine that half of the pollen carrying the recessive allele die before reaching their target, while those carrying the dominant allele are unaffected; what are the proportions of genotypes and phenotypes now?What does this tell you about Mendel’s principle of segregation?
Subject: Genetic problems 6. how would you recognize a line of garden peas that had become genotypically pure for a given trait? 7. A cross of two pink-flowered plants produces offspring whose flowers are red, pink, or white. Defining your genetic symbols, give all the different kinds of genotypes involved, and the phenotypes they represent. 9. In snapdragons, red flowers (R) are incompletely dominant to white (r), the hybrid being pink; narrow leaves (N) are incompletely dominant to broad leaves (n), the hybrid being intermediate in width ("medium"). show the genotypes and phenotypes for the progeny of a cross between a. red medium and pink medium plant b. a pink medium and white narrow c. two identical dihybrids 12. In guinea pigs, short is dominant to long. A short-haired guinea pig was mated to a long-haired one. What proportions of the offspring (F1) will be expected to be: a. homozygous short-haired b. homozygous long -haired c. heterozygous short-haired d. heterozygous…
8) In just a few sentences, discuss why homoploid hybrids typically have a more difficult time forming barriers to reproduction with their parental species than an allopolyploid or autopolyploid. What is one example of a way that a homoploid hybrid plant can establish a barrier to reproduction with its parents?
Need urgent help with bio!! 2) Explain with both proper terminology and a punnett square, why it is not possible for two white pea flowers (white is a recessive trait) could produce a purple flower. 3) Explain with both proper terminology and a punnett square why recessive traits can remain “hidden” in generations. Be sure to explain the difference between phenotype and genotype.
5. Flower color is determined by the pathway below. You a crossing a true-breeding white-flowered plant thatcannot produce gene A and a true-breeding white-flowered plant that cannot produce gene B.Gene A Gene BWhite  White  Purplea. What are the genotypes of the P-generation?b. What are the genotypes and phenotypes of the F1 generation?c. What are the genotypes and phenotypes of the F2 generation? What is the phenotypic ratio?(Purple:White)
Activity 9GENES SEGREGATION BY BEAN-O TYPE Materials: Colored beans to represent the gene for a certain trait of garden pea. (60 pieces of the same size and shape; 30 pieces of which are of different colors from rest) Procedures: 1. Place the 30 pieces beans (one color) to one container and the other 30 pieces to the other container. Assign which color of beans will represent dominant and recessive genes of a specific trait of garden pea 2. Label the paper container as First Parent P1, male and other P1 female 3. At random, segregate the beans on the Lab table. Assume fertilization occurs and First filial generations (F1) are formed 4. Categorize the formed First filial generations 5. Put all the beans in one container. Assume that all the first filial generations undergo self-fertilization 6. Pick up the beans by two from the container without looking at it and collect the second Filial generation (F2) 7. Categorize the formed Second filial generations into two (2) phenotype, and…
In sweet pea plants, an allele for purple flowers. (P) is dominanl when paired with a recessive allele for red flowers (p). An allele for Jang pollen grains (L) is dominant when paired with a recessive allele for round pollen grains (L). Bateson and Punnett crossed a plant having purple flowers and long pollen grains with one having white flowers and round pollen grains. All F1 offspring have purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple /lower/ round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?
In agriculture, polyploid crops (like coffee, strawberries, or bananas) tend to produce more uniformity more variety larger yields smaller yields