Search results
- Dictionaryfraternal twin
noun
- 1. either of a pair of twins who, as a result of developing from separate fertilized ova, are genetically distinct and not necessarily of the same sex or more similar in appearance than other siblings: "Candy and Jeff are fraternal twins"
Powered by Oxford Dictionaries
Nov 7, 2019 · Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into 2. If twins are a boy and a girl, clearly they are fraternal twins, as they do not have the same DNA. A boy has XY chromosomes and a girl has XX chromosomes.
3 days ago · Fraternal twins (also called dizygotic twins) result from the fertilization of two separate eggs with two different sperm during the same pregnancy. Fraternal twins may not have the same sex or appearance. They share half their genomes, just like any other siblings.
a twin (= either of two children born to the same mother on the same occasion) who do not look exactly the same because they developed from two separate eggs: As fraternal twins they're close, but different. Women age 35 to 40 are three times more likely than younger women to have fraternal twins. Synonym.
Reviewed by Psychology Today Staff. Fraternal or dizygotic twins develop from two different eggs fertilized by separate sperm; they generally share about 50 percent of their genes. Therefore,...
Oct 10, 2023 · Fraternal twins, also known dizygotic (DZ) or nonidentical twins, are twins that result from two separate eggs released from the ovary and fertilized by two different sperm cells within the same menstrual cycle. The two fertilized eggs implant in the uterus and develop during one pregnancy.
Jun 21, 2024 · Fraternal twins, also called dizygotic twins, develop from the fertilization of two separate eggs with two different sperm. This results in two embryos with their own placentas and amniotic...
Apr 25, 2023 · The scientific term for fraternal twins — “dizygotic” — refers to two fertilized eggs. Dizygotic twins happen when the birthing parent’s body releases two eggs at the same time. A different sperm...
Oct 12, 2010 · The meaning of FRATERNAL TWIN is either member of a pair of twins that are produced from different eggs and may not have the same sex or appearance.
Apr 25, 2022 · Dizygotic twins are also known as fraternal or non-identical twins. They are the most common type of twins. Unlike monozygotic twins (also known as identical twins), dizygotic twins do not share the same genes. Monozygotic twins share 100% of each other's genes. Dizygotic twins share only 50%.
Fraternal twin definition: one of a pair of twins, not necessarily resembling each other, or of the same sex, that develop from two separately fertilized ova.. See examples of FRATERNAL TWIN used in a sentence.
