Same-sex marriage, also known as gay marriage, is marriage between people of the same sex, either as a secular civil ceremony or in a religious setting. Same-sex unions are recorded in the history of a number of cultures, but marriage or similarly formalized same-sex unions were rare or nonexistent in other cultures.
DNA between siblings are similar if you share the same biological parents. The genetic information you gain comes from both of your parents, and are a result of fertilization of 2 haploid cells fusing to form a zygote that has a diploid number of chromosomes.
Rating Newest Oldest. Best Answer: DNA in siblings is actually closer to one another, than to the DNA in thier parents... On average, full siblings (share both biological parents) have 50% of their DNA in common, half siblings (share only one biological parent) have 25% of their DNA in common. . Source(s): http://www.dnasi.com/familystudies/sibli... aren't the following answers exactly what i said? glad i got two thumbs down for it.