A serious genetic disorder results in dwarfism of the condors. Although this might not have catastrophic consequences in a captive setting, dwarf condors would be unlikely to survive when competing with their gigantic relatives in a natural setting. Two such sets of reciprocal crosses were made, both involving purebred parents in the P generation. The results of these crosses are presented below: (NOTE: Both crosses involve birds having dwarfism resulting from the same mutation in the same gene.)  a)

Human Heredity: Principles and Issues (MindTap Course List)
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Author:Michael Cummings
Publisher:Michael Cummings
Chapter5: The Inheritance Of Complex Traits
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A serious genetic disorder results in dwarfism of the condors. Although this might not have catastrophic consequences in a captive setting, dwarf condors would be unlikely to survive when competing with their gigantic relatives in a natural setting. Two such sets of reciprocal crosses were made, both involving purebred parents in the P generation. The results of these crosses are presented below: (NOTE: Both crosses involve birds having dwarfism resulting from the same mutation in the same gene.) 

a) 

P
F₁:
F₂:
Cross #1:
Dwarf males x Normal-sized females
(Purebred)
(Purebred)
15 Dwarf females: 14 Normal sized males
23 normal males; 21 dwarf males
22 normal females: 24 dwarf females
F₁:
Cross #2:
Dwarf females x Normal-sized males
(Purebred)
(Purebred)
19 Normal sized females: 20 Normal-sized males
F2:
49 normal males
26 normal females: 25 dwarf females
Transcribed Image Text:P F₁: F₂: Cross #1: Dwarf males x Normal-sized females (Purebred) (Purebred) 15 Dwarf females: 14 Normal sized males 23 normal males; 21 dwarf males 22 normal females: 24 dwarf females F₁: Cross #2: Dwarf females x Normal-sized males (Purebred) (Purebred) 19 Normal sized females: 20 Normal-sized males F2: 49 normal males 26 normal females: 25 dwarf females
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