Question

When dominant and recessive alleles express itself together it is called _______.
A. Codominance
B. Dominance
C. Amphidominace
D. Pseudodominance

Answer 1

Hint: Codominance is the dominance of two traits that work together and exhibit both of their attributes. It can best be observed in specific events where numerous features are expressed at once.

Complete Step by Step Answer:
A dominant allele in genetics is one that, when present in the organism's genetic makeup, overrides the expression of the recessive allele and is always expressed. An allele that is dominant can be codominant or dominant over recessive.
Codominance is the state in which neither allele can entirely suppress the expression of the other; as a result, both alleles are expressed simultaneously.
It is a heterozygous state in which the phenotypic completely expresses both alleles at a gene locus.
The ABO blood type system is the most typical example of codominance. A gene that expresses the proteins seen on the surface of RBCs comes in several forms. It's A, B, and O. Our body recognises each of these alleles as being its own. The offspring of parents with blood types A and B will display the AB blood type, in which both proteins are expressed on the surface of RBCs.

Hence, the correct option is A. codominance

Additional information:
The "roan" breed of cattle is another illustration of codominance. When a red-coated breed crosses with a white-coated breed, the offspring has both red and white hair on their coat.


Note: It should be noted that both alleles will be produced and result in a distinct phenotype or traits resembling those of a homozygote if the homologous chromosome contains two alleles that can be expressed.