Which of the following can be concluded from gregor mendel’s experiments with pea plants

Which of the following can be concluded from Gregor Mendel's experiments with pea plants?

Which of the following can be concluded from Gregor Mendels experiments with pea plants? when a homozygous dominant parent i

Please help. I think it would be (2) and (4) but I only have one try left and I don't understand why I got this wrong or if those would even be correct.

Answer

Right options are: 2 and 4.

*Alleles of different genes ate inherited independently of each other.

According to the law of independent assortment, the alleles of different genes inherit independently of each other.

* Two recessive alleles are necessary for a recessive phenotype.

​​​​​for example: For recessive dwarf phenotype, the individual should have two t recessive alleles. It's genotype is tt.

Why other option are wrong:

* Offspring inherit single allele from each parent.

*When a homozygous dominant parent is crossed with homozygous recessive parent, then all individual have dominant phenotype.

Parents: TT (tall) × Dwarf (tt)

Gametes t
T Tt ( tall)

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