lizard from predation by birds. Homozygotes with allele 1 have long horns, while homozygotes with allele 2 have short horns. Given this information, which of the following is most likely true about the mode of inheritance for allele 1, and why? Allele 1 is dominant, because it gives lizards an advantage. Allele 1 is recessive, because it gives lizards an advantage. Alleles 1 and 2 are codominant, because each codes for a different horn length. It is impossible to say, because dominance cannot be inferred from fitness.
lizard from predation by birds. Homozygotes with allele 1 have long horns, while homozygotes with allele 2 have short horns. Given this information, which of the following is most likely true about the mode of inheritance for allele 1, and why? Allele 1 is dominant, because it gives lizards an advantage. Allele 1 is recessive, because it gives lizards an advantage. Alleles 1 and 2 are codominant, because each codes for a different horn length. It is impossible to say, because dominance cannot be inferred from fitness.
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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Transcribed Image Text:**Question:**
A lizard population has two alleles for horn length. Long horns help protect the lizard from predation by birds. Homozygotes with allele 1 have long horns, while homozygotes with allele 2 have short horns. Given this information, which of the following is most likely true about the mode of inheritance for allele 1, and why?
**Options:**
- Allele 1 is dominant, because it gives lizards an advantage.
- Allele 1 is recessive, because it gives lizards an advantage.
- Alleles 1 and 2 are codominant, because each codes for a different horn length.
- It is impossible to say, because dominance cannot be inferred from fitness.
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