Question

When a cross in made between tall plant with yellow seeds (TtYy) and tall plant with green seed (Ttyy), what proportions of phenotype in the offspring could be expected to be (a) tall and green. (b) dwarf and green.

Answer 1

Answer:

TY Ty tY ty

Ty TTYy TTyy TtYy Ttyy

Ty TTYy TTyy TtYy Ttyy

ty TtYy Ttyy ttYy ttyy

ty TtYy Ttyy ttYy ttyy

Answer 2

Answer:

The phenotype of tall and green and dwarf and green will be in proportion:

6:2

Explanation:

The phenotype means those characteristics which are visible physically.

In a dihybrid cross, the genotypic ratio will be: 9:3:3:1

The genotype is that characteristic which is observed in an organism in the genes. These characteristics though are genetic they don't are same as are seen phenotypically. What a gene possess and express completely depends on the dominant gene.