In this article, we shall study heart-related disorders and heart surgeries Hypertension: Symptoms: A healthy adult has a blood pressure reading of about 120/80 mm Hg (120 mm Hg – systolic and 80 mm Hg – diastolic). This often rises normally with age to about 130/90 at 60. Abnormally high blood pressure is known as […]
Tissue Fluid and Lymphatic System: 10% of its fluid escape into the surrounding tissues, as blood proceeds through the capillaries and is known as tissue fluid. Chemicals such as glucose and hormones are carried by this fluid to the cells of the body that are not next to the capillary. It then removes the waste […]
Science > Biology > Gene its Nature, Expression and Regulation > Nucleotides In this article, we shall study structural units of nucleic acid called nucleotides. In 1869, Friedrich Miescher separated cellular substance from the nuclei of pus cell and called it ‘Nuclein’. Due to acidic nature, the substance is further called as nucleic acid. There are […]
Science > Biology > Gene its Nature, Expression and Regulation > Genetic Material DNA as Genetic Material Griffith Experiment: Background: Meischer isolated nuclein from nuclei of WBCs in 1869. Walter Sutton, Thomas Hunt Morgan established that the hereditary material lies in the nucleus in chromosomes. Chromosomes are formed of proteins and nucleic acid, DNA. For […]
Science > Biology > Gene its Nature, Expression and Regulation > Types of Genes In the last article, we have studied the meaning of the term gene. In this article, we shall study types of genes. Based on the function and activity, the genes are classified as follows. Housekeeping Genes or Constitutive Genes: Housekeeping genes […]
Science > Biology > Gene its Nature, Expression and Regulation > Gene: The Concept, Characteristics, and Functions In this article, we shall the essential characters of genetic material, the meaning of the term gene, its characteristics, and its functions. Essential Features of Genetic Material: It should have the ability to store hereditary information in coded […]
Science > Biology > Applied Biology > Human Health and Diseases > Treatment of Infectious Diseases We have already studied many things about infectious diseases in previous articles. In this article, we shall study the treatment of infectious diseases Acute Diseases: An acute disease is a disease which lasts for just a short time but […]
Science > Biology > Genetic Basis of Inheritance > Mendel’s Laws of Inheritance 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 called as Mendel’s Laws of Inheritance. His work is known as Mendelism. He laid […]
Science > Biology > Genetic Basis of Inheritance > Polygenic Inheritance 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 and […]
Science > Biology > Genetic Basis of Inheritance > Pleiotropy 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 and observations, […]