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pink (Figure 5 .6). When the $F_1$ was self-pollinato (Rer) Pink exactly as we would expect in any metype ratios han monohybrid cross, but dominant : recessive ratio What happened was that $R$ made it possible to dominant over $r$ and this $\mathbf{R}$ (red) and $\mathbf{I}$ (white). distinguish $R$ as pink

1. $\to$ Every gene, as you know by gene, i.e., as a pair of alleles. need not always be identical, as in a heterozygote.
2. - One of them may be different due to some changes that it has undergone (about which you will read further on, and in the next chapter) which modifies the information that particular allele contains.
3. Let's take an example of a gene that contains the information for producing an enzyme. Now there are two copies of this gene, the two allelic forms. Let us assume (as is more common) that the normal allele produces the normal enzyme that is needed for the transformation of a ally, the modified allele could be responsible for
4. normal/less efficient enzyme, or m-functional enzyme, or:

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Updated on: Dec 28, 2022