Question

3. Two parent plants are crossed: Plant 1 Plant 2 Phenotype: Solid leaves, smooth skin, normal height x mottled leaves, peach skin, dwarf height Genotype: MM, PP, DD mm, pp, dd a. What is the phenotype and genotype of the F1 generation

Answer 1

Genotype of F1 generation: MmPpDd

Phenotype of F1 generation: Solid leaves, smooth skin, normal height.

Step-by-step explanation:

This question involves three genes; one coding for leaf shape, skin texture and plant heigh respectively. Based on the illustration used in this question, the alleles for Solid leaves (M), smooth skin (P), normal height (D) are dominant over the alleles for mottled leaves (m), peach skin (p), dwarf height (d).

Hence, in a cross between two parent plants (Plant 1 and Plant 2) whose genotypes are MMPPDD and mmppdd respectively. The following gametes will be produced by each parent plant;

MMPPDD - MPD

mmppdd- mpd

If these gametes are crossed, all the F1 offsprings will have a genotype: MmPpDd, which means they will all phenotypically have: Solid leaves, smooth skin, normal height