Twin Sisters Brca1 Testing Breast Cancer

One twin, the 'donor' twin, is small and anemic, the other, the 'recipient' twin, is large and polycythemic. The lives of both twins are endangered by this condition. Either of two children or animals brought forth at a birth.

There are different types of twins, identical and fraternal being the most common. Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are Definition of twin noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Either of two children born to the same mother on the same occasion: One of two very similar.

A Thing or Two About Twins | National Geographic

Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Either of two children born to the same mother on the same occasion: One of two very similar. Learn more. The meaning of twin is either of two offspring produced in the same pregnancy. How to use twin in a sentence.