Homework Help is Here – Start Your Trial Now!
Science
Biology
te female is crossed with dark brown male, what will be the phenotypic ra all white all dark brown all light tan either all white or all light tan

te female is crossed with dark brown male, what will be the phenotypic ra all white all dark brown all light tan either all white or all light tan

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question

Please help

Question 17 Individuals with Beckwith-Wiedemann syndrome (BWWS) develop sporadic tumors due to a mutation in an imprintable gene, p57, on chromosome 11. Normally, p57 regulates the cell cycle. The imprint on p57 is such that only the maternal allele is expressed. A heterozygous normal couple has two children with BWS and one normal child. How is it possible that both parents have the mutant p57 allele to pass along, but these parents do not themselves show the cancerous phenotype? A) Each must have received the mutant p57 allele from their respective fathers. B) Each must have received the mutant p57 allele from their respective mothers. C) The mother must have received the mutant p57 allele from her mother, while the father must have received the mutant p57 allele from his father. D) The mother must have received the mutant p57 allele from her father, while the father must have received the mutant p57 allele from his mother. E) Actually, there's something inconsistent here. Such phenotypes for the parents are not anticipated when an imprintable gene is involved. CS Scanned with CamScanner
Transcribed Image Text:Question 17 Individuals with Beckwith-Wiedemann syndrome (BWWS) develop sporadic tumors due to a mutation in an imprintable gene, p57, on chromosome 11. Normally, p57 regulates the cell cycle. The imprint on p57 is such that only the maternal allele is expressed. A heterozygous normal couple has two children with BWS and one normal child. How is it possible that both parents have the mutant p57 allele to pass along, but these parents do not themselves show the cancerous phenotype? A) Each must have received the mutant p57 allele from their respective fathers. B) Each must have received the mutant p57 allele from their respective mothers. C) The mother must have received the mutant p57 allele from her mother, while the father must have received the mutant p57 allele from his father. D) The mother must have received the mutant p57 allele from her father, while the father must have received the mutant p57 allele from his mother. E) Actually, there's something inconsistent here. Such phenotypes for the parents are not anticipated when an imprintable gene is involved. CS Scanned with CamScanner
Question 10 Consider that a certain gene is a maternal effect gene and that the allele for dark brown pigment is incompletely dominant to the allele for no pigment (white). The incomplete dominant phenotype is light tan. If a white female is crossed with dark brown male, what will be the phenotypic ratio of the progeny? A) all white B) all dark brown C) all light tan D) either all white or all light tan E) 'either all light tan or all dark brown F) none of the above choices (cannot be determined) CS Scanned with CamScanner
Transcribed Image Text:Question 10 Consider that a certain gene is a maternal effect gene and that the allele for dark brown pigment is incompletely dominant to the allele for no pigment (white). The incomplete dominant phenotype is light tan. If a white female is crossed with dark brown male, what will be the phenotypic ratio of the progeny? A) all white B) all dark brown C) all light tan D) either all white or all light tan E) 'either all light tan or all dark brown F) none of the above choices (cannot be determined) CS Scanned with CamScanner
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Environmental health & hazards
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS