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Let Y be the genotypic symbol for dominant yellow seed color, symbol y for recessive green seed color, symbol R for the dominant round shape of the seed, and symbol r for recessive wrinkled seed shape in garden pea. Using these symbols explain Mendel’s law of independent assortment.

Answer
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Hint:Under the independent assortment rule, individual hereditary factors assume an independent function in gamete development if two or more characteristics are hereditary, which offers different features for equal opportunities.

Complete answer:
The independent sorting rule stipulates that alleles for two genes are separately divided into gametes. Dihybrid crosses are called crosses that examine two different features. For instance, round grains (R) are dominant over the wrinkled grain (r), and yellow (Y) over green grains (y). We have two P generation plants for our test cross: \[RRYY\text{ }and\text{ }rryy.\]
The rule of dihybrid crosses independent assortment,
A heterozygous individual is a dihybrid Genes (\[YyRr\])
Mendel developed experiments to decide if there are two genes
Separate in dihybrids independently of each other
– First real breeding lines designed for both features (\[YYRR\text{ }\And \text{ }yyrr\])
– they crossed to create dihybrid descendants (\[YyRr\])
– The parental or recombinant form examined F2 (new) does not present in the parent combinations.
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Parental pure-breeding
F1 is \[RRYy\] all
Cross or Self F1
Note the ratio of dihybrid cross is\[9:3:3:1\].
Note there are green and round seeds
Phenotypically wrinkled yellow
Combinations found in parents haven't been together.
In the descendants.
The genotype and a round yellow phenotype are used in F1 generations. This can then be achieved via the F1 generation: x. The rule of the independent size makes the gametes equally likely to have RY or Ry. RY and ry need not sort into gametes together. Once more the chance for the F2 generation decides the genotype and phenotype.

Note: Dihybrid crosses product of Mendel
Generation F2 included parental and recombinant forms
F2 revealed 4 distinct phenotypes: round and yellow features were not present and kept connected. Stay connected to each other.
The ratios correspond to what you would expect for each characteristic cross for a single hybrid.
All genes are distinct and can therefore appear in any chromosome the descendent mix.
Characteristics are combined until they are realigned in all conceivable areas combination.