Problemas
4x Patterns of Inheritance A farmer is breeding Andalusian chickens. He notices that when he mates a black chicken with a white chicken, the offspring are spotted black and white and look blue in color. Ix PART A What is the name of this inheritance pattern? 4x A codominance 4x B segregation 4x C multiple alleles 4x D incomplete dominance
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Respuesta
The correct answer is D, incomplete dominance.
Explicación
## Step 1The problem presents a scenario where a black chicken is mated with a white chicken, and the offspring exhibit a blend of both black and white colors, appearing blue. This is a classic example of a genetic inheritance pattern.## Step 2The four options provided are different types of genetic inheritance patterns: codominance, segregation, multiple alleles, and incomplete dominance.## Step 3In codominance, both alleles in a gene pair contribute to the phenotype of the organism. This is not the case here, as the offspring do not exhibit both black and white colors simultaneously.## Step 4Segregation refers to the separation of alleles during the formation of gametes. This is not the case here, as the offspring do not exhibit a separation of alleles.## Step 5Multiple alleles refers to the presence of more than two alleles for a particular trait. This is not the case here, as the offspring do not exhibit multiple alleles.## Step 6Incomplete dominance is a situation where the phenotype of the heterozygous genotype is intermediate between the phenotypes of the homozygous genotypes. This is the case here, as the offspring exhibit a blend of both black and white colors, appearing blue.