Question

A cross between pure tall, green seed and pure dwarf, yellow seeds is crossed and $F_1$ generation progeny is obtained which is then crossed with a pure dwarf and green seeds, the number of phenotypes produced are
A) 2
B) 6
C) 4
D) 1

Answer 1

Hint: Phenotype is the word used in genetics for the complex visible characteristics or traits of an organism. The term encloses the organism's morphology or substantial form and structure, its enlargement processes, its biochemical and physiological properties, its performance, and the products of actions. A genetic cross is the determined mating of two individuals resulting in the grouping of genetic material in the offspring.

Complete answer:
Here is a heterozygote, the allele which covers the other is referred to as dominant, while the allele that is masked is termed as recessive so the number of phenotypes appears to be two.
Dominant alleles are expressed completely in a heterozygote, while recessive traits are expressed only if the creature is homozygous for the recessive allele. A single allele, however recessive to another, maybe dominant over one allele. Not all traits are managed by simple dominance as a type of inheritance; more complex forms of inheritance have been found to subsist.
Therefore, dominant characters are the phenotypes that will be accomplished are tall green & yellow dwarf in the specified cross tall & green; no other phenotype will be created.
So, the accurate answer is "2".

So, option A is the correct answer.

Note: The names dominant and recessive refer to the genotypic contact of alleles in producing the phenotype of the heterozygote. The main notion is genetic: which of the two alleles is found in the heterozygote there so that each of the two homozygotes is phenotypically identical to the individual. It is occasionally suitable to talk about the trait corresponding to the dominant allele as the dominant trait and the trait equivalent to the hidden allele as the recessive trait. Though, this can simply lead to perplexity in understanding the concept as phenotypic.