Which of the following is true about dominant traits

A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.

My pardon but there are no options so

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.