Found 454 Articles for Biology

Mutation Genetic Change

Praveen Varghese Thomas
Updated on 18-Jan-2023 14:28:47

135 Views

Introduction Genetic mutations are the changes in the DNA sequences which mainly take place during the time of cell division. During the time of cell copies, the total process happens. DNA of a body symbolizes the formation as well as the function of a body. Genetic mutations also lead to different genetic conditions such as cancer. Several external factors are also very much affected the DNA sequences. What are Mutations? The DNA sequences provide information about the formation of cells and perform as per their functions. In this case, a DNA sequence is not in the proper place, the total ... Read More

Mutagens

Praveen Varghese Thomas
Updated on 18-Jan-2023 14:21:43

143 Views

Introduction In the field of genetics, mutagen can be physical, chemical or biological agents present in the genetic material of an organism, to be precise in the DNA. The presence of these products is responsible for enhancing the rate of mutations in the cells. These mutations are often harmful to the cells and can cause very adverse effects on the health of an individual. Some of the common examples of mutagens are radioactive products, xrays, and chemicals and ultraviolet radiation. What are mutagens? Mutagens are termed the products that are harmful to the genetic material, especially DNA, these results in ... Read More

Mustard Botanical Name

Praveen Varghese Thomas
Updated on 18-Jan-2023 14:12:29

703 Views

Introduction Indian mustard mainly belongs to the group of Cruciferae or Brassicaceae. It has a botanical name that can be denoted as Brassica Juncea. Mustard also has various other names including Chinese Mustard, Brown Mustard, and Oriental Mustard. Mustard is mainly cultivated due to its economic importance across the world. Besides economic importance mustard also provide humans with various health benefits including relief from headache, supports the cardiovascular system, fights infections, gives respiratory relief, and strengthens gums, teeth, and bones. What is Mustard? Mustard is one of the members of the cruciferous vegetable family. It is mainly cultivated for the ... Read More

Hormones Heart Kidney GI

Praveen Varghese Thomas
Updated on 19-Jan-2023 17:17:27

122 Views

Introduction Hormones are the chemical messengers that are secreted in trace amounts by the endocrine cells. They transmit the information from one tissue to another tissue by diffusing it into the bloodstream. The messages transmitted to the target tissue help to control the metabolic and physiological activities in the target cells. A single hormone involves multiple effects on one target tissue or many different tissues. They are predominantly synthesized and released by the endocrine glands including the pituitary gland, adrenal gland, thyroid gland, pancreas, pineal gland, testes, and ovaries, however, they can also be produced and released in the non-endocrine ... Read More

Role of Microbes In Food Processing

Praveen Varghese Thomas
Updated on 18-Jan-2023 12:19:19

1K+ Views

Introduction Microbiology is the study of different microbes such as bacteria, viruses, slime molds, fungi, and protozoans. Microbes can be unicellular, multicellular, or acellular. The study of microorganisms that modify, colonize, contaminate or process food is known as food microbiology. History of Food Microbiology Food history varies with culture, environment, and social and economic impacts. The history of Food Microbiology is classified based on time and periods. In 7000 BC there was evidence of the manufacturing of beer. The wine was found to be manufactured in about 3500 BC. For the first time, food spoilage was recorded in 6000 ... Read More

RNA: World Genetic Material

Praveen Varghese Thomas
Updated on 18-Jan-2023 12:08:03

132 Views

Introduction Ribonucleic Acid (RNA) is another genetic material that is found in living organisms. It is a single-stranded polymer of nucleotides. Each nucleotide contains a ribose sugar moiety, a nitrogen base, and a phosphate group. Nitrogen bases are Adenine, Guanine, Cytosine, and Uracil which are joined to the sugar by glycosidic bonds, and the backbone of RNA is made of a phosphodiester bond, similar to DNA. Though it is a single stranded structure it can fold upon itself, show complementary base pairing within, and form a 3D structure. Types of RNA There are three types of RNA’s found namely ... Read More

RNA Interference

Praveen Varghese Thomas
Updated on 18-Jan-2023 11:57:45

131 Views

Introduction Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are considered as the most important nucleic acids and this has been confirmed by many biologists. The nucleotide is the basic structural constitution of nucleic acid i.e. DNA and RNA. In RNA interference the small piece of RNA shut down the protein translation by binding mRNA that codes for those proteins. The particular mRNA codes for protein synthesis. RNA interference (RNAi) regulates the post-transcriptional mechanism of genes. In this process, small interfering RNAs (siRNAs) induce the sequence-specific degradation of homologous messenger (mRNA). RNA interference is widely used in research in biology as ... Read More

Rigor Mortis

Praveen Varghese Thomas
Updated on 18-Jan-2023 11:51:02

235 Views

Introduction The word rigor mortis is made up of two words- ‘Rigor’ means ‘stiffening’ or ‘hardening’ and ‘mortis’ means ‘mortality’. It is a part of the process that takes place after death and can help to determine the time of death. What is Rigor mortis?Rigor mortis is the condition after death where muscles of the body get stiff due to some chemical reaction that occurs in the myofibrils (fibres tend to get shorter). In this stage, single-cell death occurs. The condition in which rigor mortis occurs in the body indicates in what position the body was at the time of ... Read More

Restriction Enzymes

Praveen Varghese Thomas
Updated on 18-Jan-2023 11:42:02

238 Views

What are Restriction Enzymes? Restriction enzymes are one of the biological tools that are used for the synthesis of recombinant DNA. Restriction enzymes are isolated from the bacteria and are protein in nature. They recognize a short, specific nucleotide sequence and cleave the DNA at that specific site, which is called a restriction site. When they recognize any specific nucleotide sequence in the DNA, they hydrolyze the bond between the adjacent nucleotides and cut the DNA molecule. Restriction enzymes are generally called restriction endonucleases because they cut within the DNA strands. Types of Restriction Enzymes They are classified into three ... Read More

Respiratory Quotient

Praveen Varghese Thomas
Updated on 18-Jan-2023 11:22:23

184 Views

Introduction Respiration is the process of getting oxygen into the body from the outer environment and relieving carbon dioxide from the body to the outer environment. These gases play an important role in physiological processes. The ratio of carbon dioxide released to the oxygen absorbed is called the Respiratory Quotient, which can be abbreviated as RQ. The respiratory quotient can be called as respiratory ratio or respiratory coefficient also. What is a Respiratory Quotient? A respiratory quotient is a logarithmic number used to calculate basal metabolic rate by the ratio of carbon dioxide liberated to oxygen absorbed. $$\mathrm{RQ=CO_{2}\:liberated/O_{2}\:absorbed}$$ With ... Read More

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