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.
What is the name of this inheritance pattern? A) codominance B) segregation Eliminate C) multiple alleles D) incomplete dominance
What is the name of this inheritance pattern? A) codominance B) segregation Eliminate C) multiple alleles D) incomplete dominance
2 answers:
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. This is because the allele for the black color is as dominant as the allele for the white color. The punnett square in the image shows the cross between the two types of chicken. This is called codominance of the alleles when both the gene types get expressed in the progeny resulting in a mixed phenotype.
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Answer:
All crosses and proportions, genotypes and phenotypes are attached.
Explanation:
a. Within living organisms, staining is a characteristic governed by a polygenic inheritance, which means that there is more than one gene involved in the staining process. as you already know, each gene has two alleles, if a trait is controlled by 2 genes, it means that we will have 4 alleles at the crosses.
From the description between dominance and recessivity between the alleles that control the colors of the pepper, shown in the question above, we can see that for the crossing between a red pepper and a green pepper, being able to generate a completely orange offspring, it would be necessary that the genotype of the parent peppers was: Red: RGRG, green: rgrg.
This would generate an orange-colored RrGg offspring, as you can see at the F1 crossing.
b. When individuals of F1 offspring are crossed, the combination of alleles and the determination of genotypes and phenotypes becomes much more complex, because instead of 4 alleles, we will have the combination of 16 alleles among themselves. Once again we will need to rely on the description of dominance and recessivity shown in the question above, so that from the crossing between the alleles of each gene, we can reach a conclusion, as you can see in the F2 crossing.
Answer:
1. Option A
2. 56
Explanation:
1.
Option A
Option A is not a valid answer for this question as it is given that out of eight rats only two rats are untrained. Thus, an output which shows more that two untrained rats i.s UUTTU is a wrong answer
2.
Thus , there are 56 outcomes possible for this experiment