Which of the following can explain the observation that two pureline mutants both showing identical mutant phenotypes cross to form a wild type progeny? epistasis O haploinsufficient complementation O incomplete penetrance Previous Page Next Page Page 7 of 30

Which of the following can explain the observation that two pureline mutants both showing identical mutant phenotypes cross to form a wild type progeny? epistasis O haploinsufficient complementation O incomplete penetrance Previous Page Next Page Page 7 of 30

Name: Which of the following can explain the observation that two pureline
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: Which of the following can explain the observation that two pureline mutants bothshowing identical mutant phenotypes cross to form a wild type progeny?epistasisO haploinsufficientJurycomplementationO incomplete penetrancePrevious PageNext PagePage 7

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 12QP: More Crosses with Pea Plants: The Principle of Independent Assortment Organisms have the following...

See similar textbooks

Similar questions

A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) What kind of chromosomal aberration is shown?
A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) This woman is phenotypically normal. Does thissurprise you? Why or why not? Under what circumstancesmight you expect a phenotypic effect of such arearrangement?
Which of the following types of chromosomal changes would youexpect to have phenotypic consequences? Explain your choices.A. Pericentric inversionB. Reciprocal translocationC. DeletionD. Unbalanced translocation
On rare occasions, an organism may have three copies of achromosome and therefore has three copies of the genes on thatchromosome (instead of the usual number of two copies). Forsuch a rare organism, the alleles for each gene usually segregateso that a gamete will contain one or two copies of the gene. Let’ssuppose that a rare pea plant has three copies of the chromosomethat carries the height gene. Its genotype is TTt. The plant is alsoheterozygous for the seed color gene, Yy, which is found on adifferent chromosome. With regard to both genes, how manytypes of gametes can this plant make, and in what proportions?(Assume that it is equally likely that a gamete will contain oneor two copies of the height gene.)
The maternal-effect mutation bicoid (bcd) is recessive. Inthe absence of the bicoid protein product, embryogenesis isnot completed. Consider a cross between a female heterozygousfor the bicoid mutation (bcd+/ bcd-) and a homozygousmale(bcd-/ bcd-). Predict the outcome (normal vs. failed embryogenesis) inthe F1 and F2 generations of the cross described.
Interspecification crosses are rare in nature and intergenic crosses almost unknown.why?
Considering only the five genes A, B, C, D, and E, how many genetically distinct gametes (i.e. gametes withdifferent genotypes) could be produced through independent assortment by an individual with the genotypeAABbCcDDEe? a. 4b. 8c. 16d. 64
Haploinsufficiency means the reduced dosage of a normal gene product is not enough for a normal phenotype TRUE OR FASLE ASAP I LL RATE NO EXPLANATION NEEDED
Which of the following can explain the observation that two pureline mutants both showing identical mutant phenotypes cross to form a wild type progeny? epistasis incomplete penetrance complementation haploinsufficient
Two genes ‘d’ and ‘t’ are assumed to show linkage as well as produce recombinants upto 30%. If dd/ dd individual is crossed with one which is tt/tt. What genotype will produce in first filial generation? Also give the possible meiotic products produced by first generation. If a test cross is performed what phenotypes and genotypes will produced in progeny.
Duchenne muscular dystrophy (DMD) is caused bya recessive mutant allele of an X-linked gene calleddystrophin. Rarely, females have disease symptomsas severe as those in males hemizygous for therecessive allele. These females are heterozygous forX-autosome reciprocal translocations where the Xchromosome breakage occurred in the middle of thedystrophin gene, breaking it into two pieces.a. If it is equally likely for X chromosome inactivation to spread from either of the X chromosomeinactivation centers (XICs; see Fig. 12.15) in thecells of this patient, what proportion of her cellswould you expect to have normal function of thedystrophin gene?
In a karyotype of a man whose wife has had several miscarriages, it was discovered that he had onlv 45 chromosomes. However, he displayed no obvious phenotypic defects. Furthermore, one of the chromosomes of pair 15 was abnormally long. Which of the following terms best describes the condition of this man? a. monosomy b,. trisomy c. tetrasomy d. translocation carrier e. edward syndorme