Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is —

haploid

Explanation:

the same because it is created from the same DNA

the same because chromosomes are copied prior to meiosis

different due to DNA replication prior to mitosis

different due to independent assortment during meiosis

In every gamete, the combination of gene is always different due to independent assortment during meiosis.

The formation of gametes happens by meiosis and during this process, crossing over of genetic materials and independent assortment of genes ensures that the daughter cells have a different mix of genes from each other. The daughter cells eventually become gametes in a process known as gametogenesis.  

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.