Which combination of alleles best describes a sex-linked trait?

Sex-limited genes are genes that exist in both genitals of sexually generating species but are manifested in only one sex and prevail 'turned off' in the other. In other words, sex-limited genes produce the two sexes to show various characteristics or phenotypes, despite having identical genotype.

Explanation:

its raceist

explanation:

it dosn't have red,yellow,green,blue,indigo,violet,or purple

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.