A nucleotide is a subunit of DNA or RNA and is composed of three parts: a five-carbon sugar (deoxyribose in the case of DNA or ribose in the case of RNA), a nitrogenous base, and a phosphate group. There are four different types of nucleotides in DNA: adenine (A), thymine (T), guanine (G), and cytosine …
DNA (deoxyribonucleic acid) is a nucleic acid found in all living things that contains the genetic instructions used in the development and functioning of all known living organisms. DNA is composed of two strands of nucleotides that are twisted together to form a double helix structure and contains four main bases: adenine (A), guanine (G), …
Gregor Mendel’s hybridisation experiment was conducted to study the inheritance of traits in pea plants. Mendel initially acquired true-breeding varieties of pea plants, meaning that they passed on their traits to each generation when crossed. He crossed plants that had different traits to see how the traits were passed on to the next generation. Mendel …
Hybridisation experiment conducted by Mendel – മെൻഡൽ നടത്തിയ ഹൈബ്രിഡൈസേഷൻ പരീക്ഷണം Read More »
1. Heredity is determined by the transmission of discrete, indivisible units or factors from one generation to the next. 2. Different traits are inherited independently of one another. 3. There are two factors (or alleles) for each trait, one from each parent. 4. The dominant factor will always mask the presence of the recessive factor. …
Mendel’s first generation (or “P” generation) of his experiment involved crossing purebred plants with different traits, such as tall and dwarf. The resulting offspring (or “F1” generation) were all tall and had a dominant trait. In the second generation (or “F2” generation), the offspring of the F1 generation were crossed with one another. This resulted …
The first generation of plants that are self-pollinated will be genetically identical to the parent plant. This means that all of the offspring will be exact copies of the parent plant and will have the same genetic makeup. Self-pollination is the process of a plant transferring its own pollen to itself, without the help of …
Self pollinated first generation plants – സ്വയം പരാഗണം നടത്തുന്ന ആദ്യ തലമുറ സസ്യങ്ങൾ Read More »
Dominant Traits: Dominant traits are traits or characteristics that are genetically passed down from parent to offspring. They are more likely to be expressed in the offspring than recessive traits. Examples of dominant traits include curly hair, having dimples, cleft chin, widow’s peak, and freckles. Hidden Traits: Hidden traits are traits that are not immediately …
Dominant traits and hidden traits – ആധിപത്യ സ്വഭാവങ്ങളും മറഞ്ഞിരിക്കുന്ന സ്വഭാവങ്ങളും Read More »
Gregor Mendel was a scientist who conducted experiments with plants in the 19th century. He is best known for his experiments with pea plants, which demonstrated the laws of inheritance. In his experiments, Mendel grew and cross-bred different varieties of pea plants to study the patterns of inheritance. He observed the outcomes of each cross …
The emergence of genetics as a field of scientific inquiry began in the mid-19th century when Gregor Mendel, a monk in what is now the Czech Republic, used experiments with pea plants to identify the principles of heredity. Mendel’s work was largely ignored until 1900 when Hugo de Vries and Carl Correns independently rediscovered his …
Emergence of genetics – ജനിതകശാസ്ത്രത്തിന്റെ ഉദയം Read More »
Genetics is the study of the transmission of traits from one generation to the next. It involves the study of genes and their effects on the phenotype of an organism. Genetics also includes the study of how different genes interact with each other and the environment to affect an organism’s development and behaviour. genitics, jenitics