You come across a pea plant with yellow round peas but you aren't sure about it's genotype. 1. a. What are all the possible genotypes this plant could have? b. In order to determine which genotype is correct you could do a test cross. Use one of the genotypes from 'a' and write out a test cross and the predicted progeny. C. Use another of the genotypes from 'a' and write out a test cross and the predicted progeny, clearly indicating how the progeny would be different and in different proportions depending on the genotype from 'a'.

You come across a pea plant with yellow round peas but you aren't sure about it's genotype. 1. a. What are all the possible genotypes this plant could have? b. In order to determine which genotype is correct you could do a test cross. Use one of the genotypes from 'a' and write out a test cross and the predicted progeny. C. Use another of the genotypes from 'a' and write out a test cross and the predicted progeny, clearly indicating how the progeny would be different and in different proportions depending on the genotype from 'a'.

Name: You come across a pea plant with yellow round peas but you aren't sur
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: You come across a pea plant with yellow round peas but you aren't sure aboutit's genotype.1.a. What are all the possible genotypes this plant could have?Ib. In order to determine which genotype is correct you could do a test cross.Use one of the gen

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 9RQ: What is the reason for doing a test cross? a. to identify heterozygous individuals with the dominant...

See similar textbooks

Similar questions

shows the results of a cross between a tall pea plant and a short pea plant. a. What phenotypes and proportions will be produced if a tall F1 plant is backcrossed to the short parent? b. What phenotypes and proportions will be produced if a tall F1 plant is backcrossed to the tall parent?
Assume independent assortment and start with a plantthat is dihybrid A/a ; B/b:a. What phenotypic ratio is produced from selfing it?b. What genotypic ratio is produced from selfing it?c. What phenotypic ratio is produced from testcrossingit?d. What genotypic ratio is produced from testcrossingit
1. Name two pea plant traits studied by Gregor Mendel. 2. Define genotype. 3. Define phenotype. 4. Why would a pea plant that is heterozygous for plant height have the dominant phenotype? 5. A pea plant with the recessive phenotype for plant height would have which of the following genotypes? 1. TT 2. tt 3. Tt 4. TT or Tt 6. What is the difference between a Mendelian trait and a polygenic trait? 7. Why are females more likely to be carriers for color blindness than to be color blind themselves? 8. Which of the following is a polygenic trait in humans? 1. Hitchhiker's thumb 2. Earlobe attachment 3 Skin color
What is the difference between a monohybrid cross and a dihybrid cross? A. A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. B. A monohybrid cross produces a single progeny, whereas a dihybrid cross produces two progeny. C. A monohybrid cross involves organisms that are heterozygous for a single trait, whereas a dihybrid cross involves organisms that are heterozygous for two traits. D. A monohybrid cross is performed only once, whereas a dihybrid cross is performed twice.
A cross is made between a pea plant that is RrYy and one that isrrYy. What is the predicted outcome of the seed phenotypes?a. 9 round, yellow : 3 round, green : 3 wrinkled, yellow :1 wrinkled, greenb. 3 round, yellow : 3 round, green : 1 wrinkled, yellow :1 wrinkled, green c. 3 round, yellow : 1 round, green : 3 wrinkled, yellow :1 wrinkled, greend. 1 round, yellow : 1 round, green : 1 wrinkled, yellow :1 wrinkled, green
Use the image to observe the results of a cross between a tall pea plant and a short pea plant. What phenotypes and proportions will be produced for the two crosses? P generation Tall Tt Gametes Tt F₁ generation T Fertilization Tt t Tall tt Short Tt Tall tt tt Short Conclusion (a) Short (b) Genotypic ratio 1Tt:1tt Phenotypic ratio 1 tall: 1 short Tall F₁ progeny backcrossed to the short parent Answer Bank one-fourth tall and three-fourths short one-half tall and one-half short three-fourths tall and one-fourth short Tall F₁ progeny backcrossed to the tall parent all tall all shor
You inspect an ear of corn and find the following number of kernels: 461 red and starch, 142 red and sweet, 156 yellow and starchy and 53 yellow and sweet. a. What genotype did the parent corn plants probably have? b. Support your answer by working out the cross with a Punnett square
Match the pattern of inheritance to the appropriate term. A. Heterozygotes with different alleles of the DTL1 gene survive better than homozygotes B. The disease is usually passed from a mother to all children C. Pure-breeding pumpkin plants grown on sandy soil have bigger seeds than plants of the same pure-breeding lineage grown on peaty soil. D. A cross between a true-breeding plant with serrated leaf edges and a true- breeding plant with smooth leaf edges produces an F1 generation with 88% plants with serrated leaves. E. A cross between two heterozygotes, DdFf, produces offspring in three phenotypic groups; Long wings in offspring with genotype D_F_, short wings in offspring with D_ff, and no wings in offspring with the genotypes ddF_ and ddff. F. Individuals homozygous for a mutation in SME have a heightened sense of smell and large earlobes. G. Grey chickens bred together have offspring that are black, grey and white in a 1:2:1 ratio H.Alleles at locus S…
A cross between two pea plants with genotypes PpLI and PpLI results in an F1 generation that is 25% PPLL, 50% PpLI, and 25% ppll. Which reason most likely explains why other possible genotypes are not present? Choose 1 answer. A.The genes underwent independent assortment B.The loci of the genes are close together. C.The loci of the genes are on different chromosomes. D.Crossing over occurred between chromosomes.
What does a Punnett square tell you? a.The inheritance pattern for a pair of alleles b.The phenotype probabilities of offspring for a given cross c.The number of offspring who will have a particular genotype for a given cross d.The genotype probabilities of offspring for a given cross 2.What would be the most likely karyotype for somebody described as “hemizygous positive for a Y-linked trait”? a.Y+ Y+ b.X Y+ c.X+ Y+ d.X+ Y- 3.X-linked ichthyosis is an X-linked recessive trait that manifests in part as dry, scaly skin (“ichthy-” = fish or fish like). Suppose a couple are considering having a child together. Parent A is heterozygous for the ichthyosis allele while Parent B is hemizygous negative for the ichthyosis allele. What is the probability their child would be unafflicted with ichthyosis but be a carrier of the ichthyosis-causing allele? a.0% b.25% c.50% d.75% e.100% 4.If somebody has the phenotype of…
In tomatoes, round fruit is dominant over elongated fruit, and smooth skin is dominant over fuzzy or peach skin. An RS/rs plant is test-crossed and 1000 progeny are obtained. If the genes have a frequency of recombination of 26%, how many will be elongated and peach skin? A. 370 B. 260 C. 130 D. 740
A plant that is homozygous for the recessive yellow pod color is crossed with a plant that is heterozygous. Which phenotype will appear MOST in the offspring? A. There will only be plants with green pods. B. There will be more plants with green pods. C. There will be more plants with yellow pods. D. Plants with yellow and green pods will appear in equal numbers.