Biology

Organic evalution

ORGANIC EVOLUTION

February 15, 2018

Organic Evolution creation of more and more organism by slow changes from low categories animal to higher animal is called organic evolution. There are number of proof regarding organic evolution . Homologous Organ:- Organ which are seen different due to use in various function but its structure and embryonic development are similar.EX-Flipper of whale ,feather of bat […]

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genetics

GENETICS

February 15, 2018

Genetics Genetics is the process of transfer of hereditary character from one generation to next generation  John Mendel is known as the father of genetics John Mendel Experiment:- Mendel experiment is based on cross breeding of two pea plant having contracting characters for same feature i.e tall and dwarf character of plant are of height […]

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study of cell

STUDY OF CELL

February 14, 2018

Cell Study of Cell is called Cytology A cell is basic structural and functional unit of life. The word Cell was first coined by British Scientist Robert Hook  in the year 1665. The smallest Cell is Mycoplasma gallisepticum. The longest cell in human body is Neutron. The biggest cell is egg of Ostrich. Schilden and […]

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classification of organism

CLASSIFICATION OF ORGANISM

February 14, 2018

Classification of Organism There are millions of organisms. it is impossible to study each individual separately. Classification means to categories organism into different groups. Study of an individual of a group gives us the idea of rest of the member of the group. Linnaeus (known as father of taxonomy) divides all organism into two kingdoms- Planate Animalia […]

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biology

INTRODUCTION OF BIOLOGY

February 11, 2018

Introduction of Biology Biology:–The branch of science in which living beings are studied is called Biology Bio=Life  and  Logos=Study Therefore study of life is called biology. Lamarck and Treviranus  coined the term biology in the year of 1801 Biology has two main branch :- Botany Zoology Botany:-Study of of plants is called botany.Theophrastus   is called […]

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Sex determination in human

SEX OF BABY

November 19, 2017

Sex of baby In human male sex chromosome is ‘XY’,where as in female Sex chromosome is ‘XX’.During gamete formation in male half of the sperm contain ‘X’ chromosome while other half contain ‘Y’ chromosome.In female all gametes contain only one type of chromosome that is ‘X’.Thus when a male gamete i.e spermcarrying ‘X’ chromosome fertile […]

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