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Formation of Identical Twins

By Janice VanCleave

Formation of Identical Twins

Identical twins form when a zygote (egg/sperm combination) splits into two separate parts. In the diagram, 1n represents half of the chromosomes that you have in each cell. Thus, 2n represents the complete number of chromosomes. You have a total of 46 chromosome. 1n = 23 chromosomes 2n = 46 chromosomes While the two babies […]

Filed Under: Biology Tagged With: epigenomes, identical twins

Identical Twins: Monozygotic

By Janice VanCleave

The girls in the photo are examples of identical twins. The term identical twins  refers to a type of twinning, and describes how they form, not what they look like. While the girls look identical, they are not clones. They have physical differences, such as their fingerprints, which  may look identical, but the ridges are […]

Filed Under: Biology Tagged With: identical twins, monozygotic twins

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The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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