4. In a genetic experiment with fruit-fly Drosophila melanogaster, F1 females resulting from a cross between two pure-breeding parental (P) fly strains were mated with wild- type males. All of the 1000 female progeny of this mating examined were phenotypically wild-type, whereas the 1000 male progeny examined exhibited different phenotypes in different numbers shown below (any trait not specified is wild-type): Phenotype wild-type bobbed-hair fused-vein sable-body bobbed-hair & fused-vein Number of F2 male progeny 6 75 396 26 29 384 bobbed-hair & sable-body fused-vein & sable-body 80 bobbed-hair, fused-vein & sable-body 4 (a) What are the respective modes of inheritance of bobbed-hair, fused-vein and sable- body traits? From which observation(s) do you draw these conclusions? (b) State the phenotypes of the following classes of individuals: i. F1 females, ii. Two parental (P) strains, separately. (c) Find the relative genetic locations of the genes controlling these traits, and possible crossover interference between them if they are linked.
4. In a genetic experiment with fruit-fly Drosophila melanogaster, F1 females resulting from a cross between two pure-breeding parental (P) fly strains were mated with wild- type males. All of the 1000 female progeny of this mating examined were phenotypically wild-type, whereas the 1000 male progeny examined exhibited different phenotypes in different numbers shown below (any trait not specified is wild-type): Phenotype wild-type bobbed-hair fused-vein sable-body bobbed-hair & fused-vein Number of F2 male progeny 6 75 396 26 29 384 bobbed-hair & sable-body fused-vein & sable-body 80 bobbed-hair, fused-vein & sable-body 4 (a) What are the respective modes of inheritance of bobbed-hair, fused-vein and sable- body traits? From which observation(s) do you draw these conclusions? (b) State the phenotypes of the following classes of individuals: i. F1 females, ii. Two parental (P) strains, separately. (c) Find the relative genetic locations of the genes controlling these traits, and possible crossover interference between them if they are linked.
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,...
Related questions
Question
asap please.
Transcribed Image Text:4.
In a genetic experiment with fruit-fly Drosophila melanogaster, F1 females resulting
from a cross between two pure-breeding parental (P) fly strains were mated with wild-
type males. All of the 1000 female progeny of this mating examined were phenotypically
wild-type, whereas the 1000 male progeny examined exhibited different phenotypes in
different numbers shown below (any trait not specified is wild-type):
Number of F2 male progeny
6
75
396
26
29
384
Phenotype
wild-type
bobbed-hair
fused-vein
sable-body
bobbed-hair & fused-vein
bobbed-hair & sable-body
fused-vein & sable-body
80
bobbed-hair, fused-vein & sable-body 4
(a) What are the respective modes of inheritance of bobbed-hair, fused-vein and sable-
body traits? From which observation(s) do you draw these conclusions?
(b) State the phenotypes of the following classes of individuals:
i.
F1 females,
ii. Two parental (P) strains, separately.
(c) Find the relative genetic locations of the genes controlling these traits, and possible
crossover interference between them if they are linked.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
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)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
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)
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
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education