2. Define Homologous Chromosomes A. Chromosomes that make up each pair of chromosomes in a body cell, for each of
the 23 pairs in humans, one comes from mom, the other from dad.
B. Copies of the original chromosomes
C. Allele that hides the recessive allele.
D. Pure

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Explanation:

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.

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.