11 sperms and 21 eggs
Identical and fraternal twins typically share many similar characteristics
doubtful Yes, only fraternal twinning (caused by releasing more than one egg) has a genetic connection, and that connection only holds on the mother's side. So, many twins are born with no family history of twins at all.
12 eggs= a dozen
I know of two pairs of twins in the bible Jacob and Esau, and Thomas and his twin.
1-4 eggs
To have twins, it's just two. whether they're identical or not depends on if they're two girls, two boys, or one boy and one girl. To have twins, it's just two. whether they're identical or not depends on if they're two girls, two boys, or one boy and one girl.
fraternal and identical
No. Each ejaculate contains hundreds of millions of sperm, twice as many will not make more babies. Also note that it's not only the sperm that matter, it's also the eggs inside the woman. Typically only one egg at a time is released from the ovaries, in which case the only way twins could occur would be for the egg to split, resulting in identical twins. Only rarely do the ovaries release multiple eggs, resulting in fraternal twins.
Identical and fraternal twins typically share many similar characteristics
He has fraternal twins. Boy and girl. :)
There are many twins that don't look alike. They are called fraternal twins.
there are two types of twins-- fraternal and identical. Fraternal twins are genetically unique, and they usually have physical differences. Identical twins are identically identical, such as a clone, and have exact physcial characteristics, excluding weight and scars etc.
Normally, a woman normally releases ONE egg per menstrual cycle. On occasion, a woman will release two, which would result in fraternal twins if both eggs are fertilized.
They do look different! Even identical twins, with identical DNA, are different. Most have a slight difference in height and weight. Many people have a difficult time telling them apart because they are focusing on the wrong things. If someone looks only at the hair, they may not see that their faces are slightly different.
For humans, in most cases, one is released every cycle. If more than one is released and fertilized, the resulting newborns will be fraternal twins, triplets, etc.
For humans, in most cases, one is released every cycle. If more than one is released and fertilized, the resulting newborns will be fraternal twins, triplets, etc.
It is different for every person and every cycle, sometimes one, sometimes several, this is how fraternal twins are produced, more than one egg gets fertilized and implants and starts growing.