GENERAL KNOWLEDGE

IF THE CROSS OF A RED-FLOWERED PLANT WITH A WHITE FLOWERED PLANT PRODUCES A PINK FLOWERED PLANT, THIS IS AN EXAMPLE OF

  • A. codominance
  • B. incomplete dominance ✓
  • C. mutation
  • D. linkage

 

The answer to the question is: B. incomplete dominance

When a cross between a red-flowered plant and a white-flowered plant produces a pink-flowered plant, this is an example of incomplete dominance. Incomplete dominance occurs when the heterozygous phenotype is distinct from and intermediate to the two homozygous phenotypes. In this case, neither the red nor the white allele is completely dominant, resulting in the blending of the two traits to produce a new phenotype.

Incomplete dominance is a genetic concept that was first described by Carl Correns in 1901. It is often illustrated using flower color as an example, as seen in the scenario of red and white flowers producing pink flowers. This phenomenon can be observed in various organisms, including plants and animals.

In the context of genetics, incomplete dominance is important because it demonstrates that traits are not always determined by simple dominant-recessive relationships. Instead, there can be a spectrum of phenotypes resulting from interactions between alleles.

Leave a Reply

Your email address will not be published. Required fields are marked *

Blogarama - Blog Directory