Definition of Mitosis Mitosis is a type of cell division that occurs in the body. Mitosis is a cell division process in which one cell divides into two genetically identical daughter cells, resulting in cell reproduction and duplication. The number of chromosomes is preserved in both the daughter cells. Mitosis is a short period of … Read more
Definition of Incomplete Dominance A dominance mechanism in heterozygotes wherein the dominant allele doesn’t completely override recessive allele’s phenotypic expression, resulting in an intermediary phenotype inside the heterozygote is Incomplete dominance. Since the phenotype emerging from the genotype is essentially a combination of dominant and recessive genes, incomplete dominance is also known as partial dominance … Read more
Definition Prophase For both mitosis and meiosis, prophase is the phase that follows interphase and is usually the first and longest phase in the cell cycle. The chromosomes are visible during this phase of DNA unwinding and chromatin condensation. What Happens in Prophase? During prophase, the DNA that was generated during the interphase phase is … Read more
Transcription Definition (What is Transcription in Biology) Transcription is the process of transferring genetic information from a DNA strand to an RNA strand through a sequence of polymerization processes catalysed by DNA-dependent RNA polymerases. The information is passed on from one structure to another in the first phase of gene expression. RNA molecules are begun, … Read more
Definition of Centrioles Near the nucleus, eukaryotic cells include two cylindrical, rod-shaped microtubular structures called centrioles. They are found in most algal cells (with the exception of red algae), moss cells, some fern cells, and most mammal cells, and lack a limiting membrane and DNA or RNA. Prokaryotes, red algae, yeast, cone-bearing and flowering plants … Read more
What is the Purpose of the Biuret Test? Proteins are made up of hundreds of amino acids and are a complicated substance. Amino acids are amphoteric electrolytes that include carboxyl and amino groups, respectively, and act as an acid and a base. These ions are electrically neutral and do not migrate in the electric field … Read more
Prokaryotic Cells Definition Prokaryotic cells are single-celled organisms that lack a membrane-bound nucleus and other organelles, making them primitive in form and function. The name “prokaryote” comes from two Greek words: “pro” for “before” and “karyon” for “nucleus.” Prokaryotes, the simplest form of life, are thought to be the first living species on the planet. … Read more
Mitochondria Definition Mitochondria are oxygen-consuming ribbon-shaped cellular organelles that float freely within the cell. They are called as the “powerhouse of the cell” because they provide all of the cell’s biological energy by oxidising the available substrates. The mitochondrial enzymatic oxidation of chemical molecules releases energy. Because mitochondria serve as energy generators, they can be … Read more
Monohybrid Cross Definition A monohybrid cross is a genetic cross between two individuals who have homozygous genotypes for a single feature or trait, with the phenotype often being the polar opposite. Monohybrid crossings are commonly used to ascertain the genotypes of homozygous individuals’ progeny. The hybrid resulting from this cross aids in the determination of … Read more
Definition of Biotic Factors The live organism that shapes an environment is referred to as the biotic factor or biotic component. Plants, animals, bacteria, algae, and all other life elements in an environment are considered biotic factors. An ecosystem is a complex system of living and non-living organisms, with biotic elements forming the life part … Read more