hypothetically if identical twins matt and Steve mate w/ identical twins Robin and Sarah respectively. Matt and Robin have a girl Kaitlin and Steve and Sarah have a girl Jen. Do these girls have identical genotypes?
i think its does w/ laws of hereditary and the principles of genetic variations.
2007-03-12 13:08:04 · 6 answers · asked by Make Love Not War! 4 in Science & Mathematics ➔ Biology
Let's put it in this way. Twins might have same genotypes. But no one is more similiar to a person than himself, right?
Let's suppose Tom and Cathy have two sons. Do these two boys have identical genotypes? The answer is so obvious. The chance is whimsical for two brothers with same parents to get identical genotypes, not to mention the cousins.
2007-03-12 15:13:46 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Not to mention the fact that there is even some genetic variation in identical twins.
2007-03-12 20:18:55 · answer #2 · answered by Eoas 3 · 0⤊ 0⤋
No, they won't. There are really two parts to the answer for this question.
Even though both parents of each set are identical twins, each of their eggs and sperm cells contains a different set of their own chromosomes. So, humans have 23 pairs of chromosomes, one of each pair was inherited from the mother of the twin and the other from the father. When sperm and eggs are produced, each egg or sperm gets one chromosome of each pair. So, just on that basis a person can produce 2^23 or about 840,000 different sperm or eggs.
Now, additionally, during formation of sperm and eggs, a process of genetic recombination happens, where parts of the chromosomes of each pair switch places. So, that makes the number of different sperm and eggs a person can produce nearly infinite.
Hope this helps.
2007-03-12 20:14:40 · answer #3 · answered by hcbiochem 7 · 2⤊ 0⤋
No because when gametes are formed they are haploid. In simpler terms, sperm and egg carry one half of the information from each parent. Chances are the twins in question would not receive identical information.
2007-03-12 20:21:00 · answer #4 · answered by Curiosity 7 · 0⤊ 0⤋
I would say they would have identical genotyes, or identical to the point that they couldn't determine whose parens were whose. They would probably resemble one another but wouldn't look identicle.
2007-03-12 20:20:09 · answer #5 · answered by don n 6 · 0⤊ 0⤋
Not necessarily....I believe the chances are at about 50%
2007-03-12 20:45:58 · answer #6 · answered by Diamond in the Rough 6 · 0⤊ 0⤋