The canines help to rip the food, the molars grind the food, and the incisors help to chew and rip soft foods. Hope this helped! :)
Well, since the phenotype is checkered, we assume that there is codominance where offspring phenotype is a mix of the parents' phenotypes. If the offspring phenotype is a blend between the two parents', then there is incomplete dominance.
Genotypes of codominant parents is usually represented by upper case letters B and W, and the mixed genotype would be BW.
Since the genotype BW is 100%, the rooster's genotype can only be BB and the hen's genotype can only be WW to result in 100% BW.
The correspond Punnett square is therefore
B B
W BW BW
W BW BW
By the way, apparently that this example is academically made up, there are no checkered chickens. I don't know if this is true, since I don't raise enough chickens to verify this. :)
Slant is imperfect rhyme. Thrush and bush don't rhyme completely.
The answer is O.
Since blood type A and B are codominant, it means that the people who have blood type AB only have genes of A and B. They do not have the gene for blood type O.
We can be sure that the child will not have blood type O by constructing a Punnett square. We can list all the possible genotypes thus predict their phenotypes. The capital letters represent the genotypes of parents, while others are the positive genotypes of offsprings.
From this, we can see that the only possible blood types their child could have are A, B, or AB. So, O is not possible.
It is evident from the pedigree that this disease only affects the males. This leads us to the conclusion that this trait must be a case of the Y-linked inheritance.
The trait we are examining is located on the Y chromosomes that is present only in males and inherited from fathers to sons.