Respuesta :
White fur genes are dominant, while black fur genes are recessive. Another possibility is that white fur is more advantageous for survival if they are in the arctic or another snowy environment.
The explanation of rats with white fur might be outnumbering because the white fur gene is the dominant and black fur gene is recessive, and in arctic and snowy regions, the survival chances of white fur gene is more.
What is dominant and recessive genes?
Genes that are dominant and recessive. A dominant/recessive relationship is the most common interaction between alleles.
When one allele of a gene effectively overrules the other (recessive) allele, it is said to be dominant. Dominant/recessive gene relationships can be seen in eye color and blood groups.
Thus, the white fur gene is the dominant and black fur gene is recessive, and in arctic and snowy regions, the survival chances of white fur gene is more.
Learn more about recessive genes
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