In a trihybrid cross, we can tell which class is thedouble crossover class because:they will be the least frequent of the progeny typesYou cannot tell unless it is specified in the questionthey will be equal to the non crossoverthe wild type alleles will all be together and themutant ones all togetherthey will have the same phenotypes as theparentals

Name: In a trihybrid cross, we can tell which class is thedouble crossover
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: In a trihybrid cross, we can tell which class is thedouble crossover class because:they will be the least frequent of the progeny typesYou cannot tell unless it is specified in the questionthey will be equal to the non crossoverthe wild type alleles

A trihybrid cross includes parents that are heterozygous for three loci.

Answered: In a trihybrid cross, we can tell which…

Science

Biology

In a trihybrid cross, we can tell which class is the double crossover class because: they will be the least frequent of the progeny types

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter9: Patterns Of Inheritance

Section: Chapter Questions

Problem 2FIO

See similar textbooks

Similar questions

A plant with genotype AAbbccDDEE is crossed with one that is aaBBCCddee. F1 individuals are selfed. What isthe probability of getting a F2 plant whose genotype is exactly the same as the genotype of one of the originalparents?
Summer squash exist in long, spherical, or disk shapes. When atrue-breeding long-shaped strain was crossed to a true-breedingdisk-shaped strain, all of the F1 offspring were disk-shaped. Whenthe F1 offspring were allowed to self-fertilize, the F2 generationconsisted of a ratio of 9 disk-shaped to 6 round-shaped to 1 longshaped. Assuming the shape of summer squash is governed by twodifferent genes, with each gene existing in two alleles, propose amechanism to account for this 9:6:1 ratio
During an investigation, two German shepherds with long hair were each bred with a German shepherd with short hair in a first-generation cross. The offspring from each first-generation cross were then bred to produce a second-generation cross. Which questions could be answered using the results of this investigation? Select the three correct answers. O Is hair length in German shepherds a dominant or recessive trait? O How often does the mutation for long hair randomly occur in German shepherds? How does the protein made by the gene for hair length differ among German shepherds? O Is long hair in German shepherds an inherited trait? O What percentage of offspring in the second generation of German shepherds are homozygous for the recessive hair-length trait?
A pureline plant of genotype A/A ; b/b is crossed to another pureline plant a/a ; B/B. The F1 progeny is then selfed. The progeny from the selfing of the F, that are not purlines will be about O 1/4 O 9/16 O 3/4 O 1/3 O 1/2
Most of the feathers of erminette fowl are light colored, with an occasional black one, giving a fleckedappearance. A cross of two erminettes produced a totalof 48 progeny, consisting of 22 erminettes, 14 blacks,and 12 pure whites. What genetic basis of the erminette pattern is suggested? How would you test yourhypotheses?
Two corn plants are studied. One is resistant (R) and theother is susceptible (S) to a certain pathogenic fungus.The following crosses are made, with the results shown:S / × R  → all progeny SR / × S  → all progeny RWhat can you conclude about the location of the geneticdeterminants of R and S?
But for part A if you cross dd ll x DD LL, won't all the offspring be DdLl (dark colored and long legged), so wouldn't NONE of the offpspring have short legs and light body coloration? Isn't the 9:3:3:1 ratio only for two heterozygous dihybrid crosses? Where is the 25/4 coming from? Could you draw a punnett square to demonstrate.
You cross a purple flower plant (Ww) with a white flower plant (ww). You can assume W is dominant and we have complete Dominance with 100% Penetrance and Expressivity. W=Purple color w=White color W is dominant Ww ww If you get 120 plants from this cross, how many do you expect to have white flowers? Provide integer without any spaces
We have dealt mainly with only two genes, but the sameprinciples hold for more than two genes. Consider thefollowing cross:A/a ; B/b ; C/c ; D/d ; E/e × a/a ; B/b ; c/c ; D/d ; e/ea. What proportion of progeny will phenotypicallyresemble (1) the first parent, (2) the second parent,(3) either parent, and (4) neither parent?b. What proportion of progeny will be genotypically thesame as (1) the first parent, (2) the second parent,(3) either parent, and (4) neither parent?Assume independent assortment.
A true-breeding plant with round and green seeds was crossed to atrue-breeding plant with wrinkled and yellow seeds. The F1 plantswere allowed to self-fertilize. What is the probability of obtainingthe following plants in the F2 generation: two that have round,yellow seeds; one with round, green seeds; and two with wrinkled,green seeds?
We have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se. (Let’s not worry about males and females for now, just assume both genes are autosomal, which is normal in a Mendelian experiment). The results of a cross are phenotypes. I will be asking you for numbers or a ratio of phenotype numbers you expect to see in the offspring from this cross. To answer this, you’ll need to start with the genotypes of parents, then write their gametes, then write the offspring genotypes, then get the phenotypes based on them. Predict the results of this cross: In case both mutations are recessive; In case both mutations are dominant; In case vestigial wings are recessive and the sepia eyes are dominant.
A pea plant that is dwarf with green, wrinkled seeds was crossedto a true-breeding plant that is tall with yellow, round seeds. TheF1 generation was allowed to self-fertilize. What types of gametes,and in what proportions, would the F1 generation make? Whatwould be the ratios of genotypes and phenotypes of the F2generation?