Homologous Structures Homologous Structures Definition: What are homologous structures: They are defined as the organs or the elements of animals skeletal and organisms that suggest their inheritance from a common ancestor by virtue of their similar properties. These structures do not look exactly similar or the same to each other or have the same functions to do. The… Read More »

Stabilizing Selection Stabilizing Selection Definition: The stabilizing selection is defined as the selective force or more forces that push the population toward the average or the median trait. The stabilizing selection is the descriptive term used for what happened to the trait of an individual when extremes of traits are selected against. This fact increases the trait frequency… Read More »

Dichotomous Key Dichotomous Key Definition: What is dichotomous key: It is used for identifying a specific kind of object which contains a particular series of questions. When one question has been answered, the key is directed to the user for the next question. Typically, the dichotomous keys are stress to identify the species by their scientific name, because… Read More »

Decomposer Decomposer Definition: A decomposer is defined as an organism that decomposes or breaks down the organic material including the remains of dead organisms. The decomposers are included bacteria and fungi. These organisms carry the process of decomposition that all living organisms undergo after death. The decomposition is an important process because it permits the organic material to… Read More »

Sex Chromosomes Sex Chromosomes Definition What are Sex Chromosomes: They are a kind of chromosome that involves sex determination. Humans and most of the other mammals have two chromosomes for sex; X chromosome and a Y chromosome. Female has two X chromosomes in their genetic cells, and the male has a pair of both X and Y chromosomes… Read More »

Carbohydrates Definition The term “carbohydrates” is applied to a large number of relatively heterogeneous compounds found in all animals and plants. Carbohydrates are polyhydric alcohols with potentially active carbonyl groups which may either be aldehyde or ketone groups. They also include those components which yield them on hydrolysis. Some carbohydrates also contain N and S. Carbohydrates are also called… Read More »

Definition of meiosis: Meiosis is basically the type of cell division due to which that one parent cell divides into four daughter cells. And the number of chromosomes in each daughter cell is half the number of chromosomes of the parent cell. Phases of Meiosis briefly describe below. Why Meiosis is Important? Meiosis, from the Greek word “meioun”, meaning “to… Read More »

Cell Cycle Definition The cell cycle is the procedure due to which a cell replicates its genetic material and produced the other rudiments of the cell and at the end of the process cell divided into two daughter cells the whole process is known as cell cycle”. Detail of Phases of the Cell Cycle Discusses Below. Phases of… Read More »

Chromosomes Chromosome Definition: What are chromosomes: The DNA molecules are tightly packaged within a nucleus with the help of the thread-like structure is known as chromosomes. Each chromosome is made by DNA tightly coiled many times around the proteins, known as Histones which help to support its structure. Each chromosome has a constriction point known as the Centromere,… Read More »