What is a gene ? What …
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Posted by Bishal Saud 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
A gene is a unit of genetic information that codes for a single biological function or product. Genes are found on chromosomes and are made up of nucleic acid (deoxyribonucleic acid ,DNA for most organisms) and proteins.
Genes are functional segments of DNA molecules which stores genetics information in cell nucleus. The information can be “read” through transcription and translation (the Central Dogma). RNA carries the information from DNA and passes it to protein. Translation of RNA into protein follows genetic code which is composed of triplet nucleotides. DNA can replicate itself according to base pairing mechanism. Mutations can occur and cause genetic disease if it happens in germ line cells.
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