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JHI SCI REV
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- 1EnzymesEnzymes are biological molecules (proteins) that act as catalysts and help complex reactions occur everywhere in life.
- 2Genetic EngineeringGenetic engineering (GE) is the modification of an organism's genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species.
- 3DNADNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA.
- 4Protein Synthesist rewrites the sequence of bases of a section of DNA in a process called transcription. mRNA carries the code for building a specific protein from the nucleus to the ribosome's in the cytoplasm. That is, it acts as a messenger.
- 5Asexual RepoductionAsexual reproduction is a mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes and almost never changes the number of chromosomes.
- 6Sex ChromosomesA chromosome concerned in determining the sex of an organism, typically one of two kinds.
- 7Genetic DisordersA genetic disorder is a genetic problem caused by one or more abnormalities in the genome, especially a condition that is present from birth (congenital). Most genetic disorders are quite rare and affect one person in every several thousands or millions.
- 8CloningIn biology, cloning is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually.
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- MR HILL SCIENCE REVISON
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- Robert Hooper
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