What happens if a person has one dominant gene and one recessive gene for the same trait in his or her DNA? (PLS HELP ASAP)

Only the dominant allele will be expressed in the individual's phenotype.

Explanation:

Only the dominant allele (version of that trait/gene) will be expressed in the individual's phenotype (physical characteristics).

Dominant alleles always 'mask' recessive alleles whenever they are present (for the same trait/gene). This means if an individual has at least one dominant allele, they will always display the dominant version of that trait.

The only way for an individual to express the recessive gene in their phenotype for that trait, is if they are homo-zygous recessive (have both recessive alleles) as there are no dominant genes to mask the recessive ones, so they can be expressed.

Hope this helped!

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.