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In a certain species of birds which produce many offspring per mating, the following modes of inheritance have been determined for the following characteristics: for coloring of feathers, bright ((+)) is a sex-influenced trait that acts dominantly in males but acts recessively in females compared to dull ((-)). • for song pitch, low pitch (H) is sex-limited to males and completely dominant to high pitch (h). • for the beak length, long (L) is completely dominant to short (); however, heterozygotes and homozygous recessive birds show 70% penetrance.

In a certain species of birds which produce many offspring per mating, the following modes of inheritance have been determined for the following characteristics: for coloring of feathers, bright ((+)) is a sex-influenced trait that acts dominantly in males but acts recessively in females compared to dull ((-)). • for song pitch, low pitch (H) is sex-limited to males and completely dominant to high pitch (h). • for the beak length, long (L) is completely dominant to short (); however, heterozygotes and homozygous recessive birds show 70% penetrance.

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,...
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In a certain species of birds which produce many offspring per mating, the following modes of inheritance have been determined for the following characteristics: for coloring of feathers, bright ((+)) is a sex-influenced trait that acts dominantly in males but acts recessively in females compared to dull (-). - for song pitch, low pitch (H) is sex-limited to males and completely dominant to high pitch (h). • for the beak length, long (L) is completely dominant to short (); however, heterozygotes and homozygous recessive birds show 70% penetrance. CS Scanned with CamScanner
Transcribed Image Text:In a certain species of birds which produce many offspring per mating, the following modes of inheritance have been determined for the following characteristics: for coloring of feathers, bright ((+)) is a sex-influenced trait that acts dominantly in males but acts recessively in females compared to dull (-). - for song pitch, low pitch (H) is sex-limited to males and completely dominant to high pitch (h). • for the beak length, long (L) is completely dominant to short (); however, heterozygotes and homozygous recessive birds show 70% penetrance. CS Scanned with CamScanner
Blank #1: For coloring of feathers, what is the genotype of a bright female bird? Blank #2: What is the feather coloring phenotype of a male bird of genotype (-)(+)? Blank #3: From a cross of (+)) × (+)(+), among the female progeny, what proportion should be brightly-colored? Blank #4: For song pitch, what is the genotype of a high-pitched female bird? Blank #5: What is the song pitch phenotype of a male bird of genotype hh? Blank #6: From a cross of hh x Hh, among the male progeny, what proportion should be high-pitched? Blank #7: For beak length, what is the genotype of a long-beaked bird? Blank #8: For beak length, what proportion of progeny from a cross of LL x II should have short beaks? CS Scanned with CamScanner
Transcribed Image Text:Blank #1: For coloring of feathers, what is the genotype of a bright female bird? Blank #2: What is the feather coloring phenotype of a male bird of genotype (-)(+)? Blank #3: From a cross of (+)) × (+)(+), among the female progeny, what proportion should be brightly-colored? Blank #4: For song pitch, what is the genotype of a high-pitched female bird? Blank #5: What is the song pitch phenotype of a male bird of genotype hh? Blank #6: From a cross of hh x Hh, among the male progeny, what proportion should be high-pitched? Blank #7: For beak length, what is the genotype of a long-beaked bird? Blank #8: For beak length, what proportion of progeny from a cross of LL x II should have short beaks? CS Scanned with CamScanner
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