Therefore, fraternal twins are essentially like typical brothers ... Twins are also more commonly female, rather than male. But male embryos die at a higher rate while in-utero than do female ...

Therefore, boy/girl twins are always fraternal (or dizygotic), as their chromosomes are either XY (male) or XX (female). What are Di Di twins? Di Di stands for Dichronic Diamniotic, and they are ...

The male twin does not have twins ... we don't know if the gene requires something in the environment to activate it. Fraternal twins tend to run in families. This might be due to a gene that ...

Marmoset pregnancies generally produce fraternal twins. During gestation ... indeed more than half of the male marmosets sampled produced chimeric sperm. Wondering how widespread chimerism ...

There are two types of twins, identical and fraternal twins. Identical twins develop from one egg; the egg is fertilized by the sperm then divides into two. Identical twins are similar in ...

and there are two main types of twins; identical and fraternal. Identical twins result from a single fertilised egg that splits to form two embryos. As a result, these twins are identical in sex ...

Katey revealed on her Instagram Story that Elsie and Emma were fraternal twins because they had different blood types. They must have checked for that after birth and confirmed that while they may ...

Participants were 1,006 working, male twins (738 identical and 268 fraternal twins; age 20–60) recruited via a web-based survey. Participants responded to the questions of academic achievement at the ...