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प्रश्न
Define – Incomplete dominance.
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उत्तर
Incomplete dominance is a genetic phenomenon in which neither of the two alleles that determine a particular trait is completely dominant over the other, resulting in an intermediate phenotype that is a blend of the two.
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संबंधित प्रश्न
Which one of the following is a true pleiotropic gene?
In Mendelian monohybrid cross, phenotypic ratio in F2 is 3: 1. Find out the types of gametes formed by F1 generation.
In ____________, one could get same genotypic and phenotypic ratio.
Assertion (A): In Mirabilis jalapa (4 o'clock plant), a cross between Red flowered plant and White-flowered plant (both homozygous) produced Pink flowered plant in F1 generation.
Reason (R): In this plant, flower colour is controlled by pleiotropic genes
If F1 hybrid shows characters of both the parents, then it is due to ______
A gene which causes death of its bearer is ______.
Write a note on incomplete dominance.
Give a cross for incomplete dominance using a suitable example.
Fill in the blanks:
| Column 'A' (Gene interactions) |
Column 'B' (Example) |
|
| (1) | Co-dominance | ______ |
| (2) | Incomplete dominance | ______ |
| (3) | Multiple allelism | ______ |
| (4) | Pleiotropy | ______ |
| (5) | Polygenes | ______ |
| (6) | Autosomal dominance | ______ |
A pea plant homozygous for yellow round seed is crossed with its recessive parents. Calculate the phenotypic and genotypic ratio with the help of a checkerboard.
