Online Notes

 Branches of Biology  There are different branches of biology. Some of the terms and with what study they are related, has been given in this blog. Hope that you like it. The list of 50+ terms used for different branches of biology is given below. 1) Anatomy - deals with the study of internal structures of an organism with naked eye. 2) Angiology - Study of blood vessels. 3) Bacteriology - Study of bacteria 4) Biochemistry - Study of chemistry of living organism. 5) Cardiology - Study of heart. 6) Cytology - Study of structure and function of cell and cell organelles. 7) Dermatology - Study of skin and skin appendages. 8) Ecology - Study of relationship between living organisms and environment. 9) Embryology -  Study of formation and development of embryo up to hatching or birth. 10) Endocrinology - Study of endocrine glands and hormones. 11) Evolution - Study of origin of life and formation of different forms from the primordial life and relationship between t...

Heredity Part-1  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1) What is genetics? Answer: Genetics is the branch of biological science which deals with the nature and behavior of genes. 2) What are genes? Answer: Genes are tiny units of heredity located in chromosomes. They are arranged in chromosomes in a linear fashion. 3) What is hybrids? Answer: Hybrids are the organisms produced after cross-fertilization between two genetically different organisms. 4) What do you mean by F₂- generation ? Answer: The generation obtained by crossing two parental stocks of F₁- generation is called F₂- generation or second filial generation. 5) Write scientific name of pea. Answer: The scientific name of pea plant is Pisum sativum . 6) What is genetic variation? Answer: Genetic variation is defined as the differences among the members of species. 7) State two functions of genes. Answer: Any two functions of genes are as foll...

Chromosome and Sex determination Part-2  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1) What is telocentric chromosome? Answer: The chromosome having cetnromere at one end of the chromatid is called telocentric chromosome. 2) What are hereditary characteristics? Answer: The characteristics which are transmitted from one generation to another are called hereditary characteristics. 3) How many types of chromosomes are there on the basis of position of centromere? Answer: On the basis of position of centromere, chromosomes are of following types:          (i) Metacentric          (ii) Sub-metacentric          (iii) Acrocentric      and          (iv) Telocentric 4) What types of cells contain haploid chromosomes? Answer: Gametes (male gamete or female gamete) contain haploid chromosomes. 5) Write any two...

Chromosome and Sex determination Part-1  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1) What are genes? Answer: Genes are tiny units of heredity found in chromosomes. 2) What are genes made of? Answer: Genes are made of DNA (Deoxy-Ribo Nucleic Acid) . 3) What types of cells contain diploid chromosomes? Answer: Somatic cells or body cells contain diploid chromosomes. 4) What is kinetochore? Answer: The centromere of a chromosome is called kinetochore. 5) Write down the major function of genes. Answer: The major function of genes is to transmit hereditary characteristics from one generation to another. 6) What is a sex-linked disease? Answer: The disease which occurs only in a particular sex (either male or female) is called a sex linked disease. 7) What is sex chromosome? Answer: The chromosome that determine the sex of an organism is called sex chromosome. 8) Write any two examples of chromosomal disorder...