Question

4. In some varieties of camelia, flower color is controlled by codominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as red and white.

D. What is the phenotype of a plant with the genotype RR?
E. What is the phenotype of a plant with the genotype WW?
F. What is the phenotype of a plant with the genotype RW?

Answer 1

D. Red

E. White

F. Red and white

Step-by-step explanation:

Co-dominance is a type of non-mendelian inheritance in which the two alleles of a gene are both dominant. Hence, they are both simultaneously expressed in the organisms phenotype.

According to this question, the two alleles (red (R) and white (W)) of a color gene in some varieties of Camelia are codominant. This means that both alleles will be expressed simultaneously in organisms that contain them.

- phenotype of a plant with the genotype RR is RED because only "R" alleles are present.

- phenotype of a plant with the genotype WW is WHITE because only "W" alleles are present.

- phenotype of a plant with the genotype RW will be BOTH RED AND WHITE, because they both phenotypically express themselves.