Categories
Genetics

Dominance and Codominance

Science > Biology > Genetic Basis of Inheritance > Dominance and Codominance Mendel performed his experiments with garden pea plant, which has traits or alleles having complete dominance and hence the laws of inheritance were proved. Other scientists performed their experiments on different plants and animals and found deviations to Mendelian ratios. Depending upon these experiments […]

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Genetics

Mendel’s Dihybrid Cross Experiment

Science > Biology > Genetic Basis of Inheritance > Mendel’s Dihybrid Cross Experiment In this article, we shall study Mendel’s dihybrid cross experiment and its conclusions. The first scientific explanation of inheritance was given by Mendel in 1866. He performed a series of experiments on garden pea in a scientific manner and proposed rules. which are […]

Categories
Genetics

Mendel’s Monohybrid Cross Experiment

Science > Biology > Genetic Basis of Inheritance > Mendel’s Monohybrid Cross Experiment In this article, we shall study Mendel’s monohybrid cross experiment and its conclusions. The first scientific explanation of inheritance was given by Mendel in 1866. He performed a series of experiments on garden pea in a scientific manner and proposed rules. which are […]

Categories
Genetics

Terminology of Genetics

Science > Biology > Genetic Basis of Inheritance > Terminology of Genetics In this article, we shall study the terminology of Genetics and understand the concept of alleles. Heredity: The transmission of characters from one generation to the next, that is from parents to offsprings (progeny) is known as heredity. These hereditary characters are present on […]

Categories
Genetics

Introduction to Genetics

Science > Biology > Genetic Basis of Inheritance > Introduction to Genetics In this article, we shall study the history of the science of genetics and the contribution of Gregor Mendel to Genetics. History of Genetics From the earliest recorded history, ancient civilizations observed patterns in reproduction. Animals produce offspring of the same species, children […]

Categories
General Biology

Biofertilizers and BioControl Agents

Biology > Microbes in Human Welfare > Biofertilizers and BioControl Agents In this article, we shall study the use of microbes as biocontrol agents and biofertilizers. Microbes as Biocontrol Agents: Chemical insecticides and pesticides are toxic and extremely harmful, to human beings and animals. These chemicals pollute the environment (soil, groundwater), fruits, vegetables, and crop […]

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General Biology

Division Thallophyta

In this article, we shall study the characteristics and examples of Division Thallophyta. (Greek – Thallus – plant body without root, stem, and leaves; phyton – a plant) Characteristics of Division Thallophyta: Members of division Thallophyta are the most primitive and simple plants. The plant body is not differentiated into root, stem, and leaves. They are […]

Categories
General Biology

Brief Idea of Classification of Plants

In this article, we shall get a general idea of the classification of plants. In the next articles, we shall study the classification of plants in detail. Characteristics of Kingdom Plantae: Kingdom Plantae consists of all plants which are multicellular eukaryotes with cell walls. All plants contain plastids. Plastids are a double-membrane organelle that possesses photosynthetic […]

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General Biology

Viruses

Science > Biology > Classification of Microbes, Protists, and Fungi > Viruses In the five-kingdom classification of Whittaker, there is no mention of some acellular organisms like viruses and viroids and lichens. Viruses did not find a place in classification since they are not truly ‘living’ if we understand living as those organisms that have […]

Categories
General Biology

Lichens

Science > Biology > Classification of Microbes, Protists, and Fungi > Lichens In the five-kingdom classification of Whittaker, there is no mention of some acellular organisms like viruses and viroids and lichens. A lichen is a long-living composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a […]