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Question
Differentiate between the following -
Dominance and Recessive
Solution
| Sr. No. | Dominance | Recessive |
| 1. | The dominant allele may reveal itself even in the presence of the recessive gene. | A recessive allele or factor cannot express its effect in the presence of a dominant allele. |
| 2. | It does not require another similar allele to have an influence on the phenotype; for example, Tt is tall. | It has a phenotypic effect solely in the presence of an equivalent llele, such as tt is dwarf. |
| 3. | Dominant alleles or factors can create full polypeptides or enzymes to express their effects, such as the red colour of pea flowers. | The recessive allele produces an incomplete or faulty polypeptide or enzyme, resulting in the absence of the effect of the dominant allele, such as white flower colour in pea. |
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Punnett square is used to know
Cross between hybrid and recessive parent:
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OR
c. 50% of the offspring of Pooja’s brother are green eyed. With help of cross show how this is possible.
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Explain the inheritance of traits in the above cross with the help of a flow chart only along with the ratio of plants obtained.
