Genetics is the study of heredity, how traits pass from parents to offspring through genes. DNA carries genetic information in the form of genes, whic
syllab.in · free
❓ Quick answer
Why are identical twins 100% genetically identical?
Identical twins develop from a single fertilized egg that splits into two embryos. Both embryos have the same DNA. Fraternal twins develop from two separate eggs and are genetically similar but not identical, like regular siblings.
❓ Quick answer
How does crossing over during meiosis increase genetic diversity?
Crossing over exchanges segments of DNA between paired chromosomes. This creates new combinations of alleles on single chromosomes. Even siblings inheriting from the same parents have different combinations of alleles due to crossing over.
❓ Quick answer
What is the significance of the human genome project?
The human genome project sequenced all 3 billion base pairs in human DNA. It identified about 20,000 genes and provided insight into genetic structure. This enables research on genetic diseases and personalized medicine based on individual genetic makeup.
Learn it fully — free
syllab.in