If genes for dark feathers hide genes for light feathers, the dark feathers genes are..
Group of answer choices:
recessive
dominate
hybrid
incomplete
To determine which genes are responsible for dark feathers, we need to understand the concept of dominance and recessiveness in genetics. In this case, if genes for dark feathers hide genes for light feathers, it suggests that the dark feather genes are dominant over the light feather genes.
When we talk about genetics, genes come in pairs, with one copy inherited from each parent. Dominant genes will always be expressed, or shown, in the physical trait of an organism, even if there is only one copy of the dominant gene. On the other hand, recessive genes will only be expressed if there are two copies of the recessive gene, as they are masked or hidden by the dominant gene.
Based on this understanding, the correct answer is:
Recessive - This option is incorrect because if the genes for dark feathers are hiding or masking the genes for light feathers, it suggests that the dark feathers genes are dominant over the light feathers genes.
Dominant - This option is correct. The genes for dark feathers are dominating or overriding the genes for light feathers.
Hybrid - Hybrid refers to an organism that is the offspring of parents with different characteristics or traits. It is not directly related to the question, so this option is incorrect.
Incomplete - Incomplete dominance is a different concept that occurs when neither of the genes is completely dominant over the other, resulting in a blending or intermediate phenotype. This option is incorrect as the question suggests that the dark feather genes completely mask the expression of the light feather genes, indicating dominance.