Twins are two offspring In biology, offspring is the product of reproduction, a new organism produced by one or more parents resulting from the same pregnancy Pregnancy is the carrying of one or more offspring, known as a fetus or embryo, inside the uterus of a female. In a pregnancy, there can be multiple gestations, as in the case of twins or triplets. Human pregnancy is the most studied of all mammalian pregnancies. Obstetrics is the surgical field that studies and cares for high risk pregnancy, usually born Childbirth is the culmination of a human pregnancy or gestation period with birth of one or more newborn infants from a woman's uterus. The process of normal human childbirth is categorized in three stages of labour: the shortening and dilation of the cervix, descent and birth of the infant, and birth of the placenta.. In some cases, childbirth is in close succession. They can be the same or different sex. Twins can either be monozygotic (MZ, colloquially "identical") or dizygotic (DZ, colloquially "fraternal" or "non-identical").
Contents |
Newsroom Finland
Identical twins Monika and Mikaela von Bonsdorff are to defend their doctoral theses on the same day at the University of Jyvaeskylae next week, ...
and more »
