Deoxyribonucleic Acid<\/strong> (DNA)<\/strong> is the hereditary material in humans and almost all other organisms. Nearly every cell in a person\u2019s body has the same DNA. Most DNA is located in the cell nucleus (which is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (which is called mitochondrial DNA or mtDNA).<\/td><\/tr>Ribonucleic Acid<\/strong> (RNA)<\/strong>is one of the three major biological macromolecules essential for all known life forms (along with DNA and proteins). RNA is important in regulating cellular processes\u2013from cell division, differentiation and growth to cell ageing and death.Phenotype<\/strong> refers to all the observable characteristics of an organism that result from the interaction of its genotype (total genetic inheritance) with the environment. Observable characteristics include behaviour, biochemical properties, colour, shape, and size.Chromosome: <\/strong>DNA is tightly coiled to make a thread-like structure called a Chromosome. Human beings have 46 chromosomes (23 from each parent). The chromosome is the microscopic thread-like part of the cell that carries hereditary information in the form of genes.Nucleotide: <\/strong>A nucleotide is an organic molecule that is the building block of DNA and RNA.Genes: <\/strong>A gene is a \u2018specific\u2019 section of DNA. It makes RNA (transcription) or protein (translation). Gene pool: <\/strong>A gene pool collects different genes within an interbreeding population.Enzymes:<\/strong> Biological molecules, usually proteins responsible for thousands of metabolic processes essential to life.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<\/span>Comparison of DNA and RNA<\/strong><\/span><\/h2>\n\n\n\nDNA and RNA are used to store genetic information, so there are clear differences between them. The following table summarises the key points:<\/p>\n\n\n\nComparison of DNA and RNA<\/strong><\/th><\/tr>Comparison<\/strong><\/th>DNA<\/strong><\/th>RNA<\/strong><\/th><\/tr><\/thead>Function<\/td> Long-term storage of genetic information; transmission of genetic information to make other cells and new organisms.<\/td> Used to transfer the genetic code from the nucleus to the ribosomes to make proteins. RNA is used to transmit genetic information in some organisms <\/td><\/tr> Structural Features<\/td> B-form double helix. DNA is a double-stranded molecule consisting of a long chain of nucleotides.<\/td> A-form helix. RNA usually is a single-strand helix consisting of shorter chains of nucleotides.<\/td><\/tr> Composition of Bases and Sugars<\/td> Deoxyribose sugar-phosphate backbone Adenine, Guanine, Cytosine, and Thymine bases<\/td> Ribose sugar; Phosphate backbone; Adenine, Guanine, Cytosine, Uracil bases<\/td><\/tr> Propagation<\/td> DNA is self-replicating<\/td> RNA is synthesised from DNA on an as-needed basis.<\/td><\/tr> Base Pairing<\/td> AT (Adenine-Thymine); GC (Guanine-Cytosine)<\/td> AU (Adenine-Uracil); GC (Guanine-Cytosine)<\/td><\/tr> Ultraviolet Damage<\/td> DNA is susceptible to UV damage.<\/td> Compared with DNA, RNA is relatively resistant to UV damage.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<\/span>Conclusion<\/strong><\/span><\/h2>\n\n\n\nIn conclusion, genes are an essential part of the biological processes occurring in living organisms that show manifestation by variable traits and susceptibility toward some diseases. It is genetic research that has cast the light around the mechanism of transmission of some traits and has made potential advances in areas such as medicine, agriculture, and biotechnology possible. As more research continues to shed light on the complex nature of genetic information, it opens up even greater potential avenues for the application of genetics toward health improvements and agricultural productivity. Genes and how they work will remain a prime focus of study and research, keeping alive the quest to manipulate life itself.<\/p>\n\n\n\n
<\/span>FAQs<\/strong><\/span><\/h2>\n\n\n\n
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<\/span>What are genes ?<\/strong><\/span><\/h3>\n\n\n
Genes are units of heredity made of DNA that carry instructions for building proteins, essential for life functions. They determine traits like eye color and height, passing from parents to offspring. Genes influence health, behavior, and evolution, playing a crucial role in genetics and biological diversity.<\/p>\n\n<\/div>\n<\/div>\n
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<\/span>What are the 4 types of genes?<\/strong><\/span><\/h3>\n\n\n
– Structural genes<\/strong> \u2013 Code for proteins that build body structures and enzymes.Regulatory genes<\/strong> \u2013 Control gene expression by turning other genes on or off.Housekeeping genes<\/strong> \u2013 Maintain essential cellular functions.Proto-oncogenes<\/strong> \u2013 Regulate cell growth, but mutations can cause cancer.<\/p>\n\n<\/div>\n<\/div>\n\n
<\/span>What is the concept of genes?<\/strong><\/span><\/h3>\n\n\n
The fundamental unit of inheritance is thought to be the gene. The information required to specify physical and biological features is contained in genes, which are passed down from parents to children. The majority of genes produce certain proteins or protein fragments with a variety of bodily activities.<\/p>\n\n<\/div>\n<\/div>\n
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<\/span>What is a genome ?<\/strong><\/span><\/h3>\n\n\n
A genome <\/strong>is the complete set of an organism’s DNA, including all its genes and non-coding sequences. It contains instructions for growth, development, and functioning. The human genome has about 3 billion DNA base pairs. Genomics studies genomes to understand heredity, evolution, and disease mechanisms for medical advancements.<\/p>\n\n<\/div>\n<\/div>\n\n
<\/span>Where are genes located?<\/strong><\/span><\/h3>\n\n\n
Genes are located on chromosomes<\/strong> inside the nucleus<\/strong> of a cell. Chromosomes are made of DNA, which carries genetic information. Some genes are also found in mitochondria<\/strong>, known as mitochondrial DNA. These genes control traits, cellular functions, and heredity, passing from parents to offspring through reproduction.<\/p>\n\n<\/div>\n<\/div>\n\n
<\/span>What is gene mutation?<\/strong><\/span><\/h3>\n\n\n
A gene mutation<\/strong> is a permanent change in the DNA sequence of a gene. It can occur due to errors in DNA replication, environmental factors, or inherited conditions. Mutations may be harmless, beneficial, or harmful<\/strong>, leading to genetic disorders, cancer, or evolution by introducing new traits in organisms.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
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