GENE AND CELL

·   The genetic material of chromatin is DNA

·   Hereditary material is DNA

·   Gender of a person is determined by 23^rd chromosome

·   Autosome are sex chromosome = 23

·   Nucleus of human body cell contains about 20,000 genes, half of which being contributed by each parent

·   Term gene was coined by Johannsen in 1909

·   DNA = Deoxy ribose nucleic acid

·   RNA = Ribose nucleic acid

·   Histones are on chromosomes

·   Chromosomes word was coined by Waldeyer in 1888

·   Number of chromosomes in human being is 46

·   Chromosomes in spermatozoa are 23

·   Smallest part of a gene is Mutton

·   Mitochondria are power house of cells

·   Golgi bodies are involved in cell secretions

·   Ribosome are rich in DNA and prepare protein

·   Plastids are found in Plant cells only and contain chlorophyll

·   Centrosomes help in cell division

·   Proteins are synthesized by Golgi bodies.

·   Cellulose respiration is done by Mitochondrion

·   Light energy is stored in the form of chemical energy due to the activity of Chloroplast.

·   Protoplasm is a colloidal solution.

·   Most cells are microscopic but the egg cell of an ostrich is 15-20 cm long and some giraffe nerve cells reach more then 4 m long

·   Mitochondria do work of cell respiration.

·   The nucleus, mitocondria and chloroplast have double membranes

·   Bacteria have no nucleus and no mitochondria they have just a single loop of DNA cell nucleoid as well as food granules and ribosome which produce proteins

·   Each cell has the same set of about 30,000 genes.

·   Genes are arranged along a long and thin thread-like structure called chromosomes.

·   Snakes have 36 chromosomes, horse has 63 while some ferns have 500 or more

·   Humans have a total of 46 chromosomes- 23 pairs in every cell. The only exception is sperm and egg cells, which have 23 unpaired chromosomes.

·   Genes are made of a chemical called deoxyribonucleic acid or DNA

·   DNA tells a cell how to make the proteins

·   Every cell in a body contains at least 10,000 different kinds of proteins.

·   The machinery for making these proteins is on structures called ribosome, which are outside the nucleus.

·   RNA carries the instructions for making a particular protein to the ribosome.

·   A permanent change to a piece of DNA is called a mutation.

·   Nearly a third of a human being’s genes are the same as the genes of a lettuce.

·   DNA is shaped like a twisted ladder called double helix. The rungs of the ladder are made up of four chemical building blocks Adenine, Guanine, Thymine, and Cytosine.

·   Amoeba is a unicellular organism

·   A structure present in all cells is called cell membrane

·   The normal temperature of human body on the Kelvin scale is 310.

·   ELISA is Enzyme Linked Immunosorbent Assay- for HIV/AIDS.

·   Rh- blood is very rare compared to Rh+.

·   The pancreatic duct releases its contents into duodenum.

·   Right hepatic artery supplies nutrient rich blood from stomach and small intestine to the liver.

·   Human cranium contains 6 bones.

·   In the human body, spleen stores extra blood for release when shortage occurs.

·   Mitochondria contain enzymes for cellular respirations.

·   In the human body, rotator cuff muscle is to be found in the shoulder.

·   Reproductive cells in normal human beings are produced in greater numbers for a longer period of time in the male

·   Which vessels bring blood back to heart? Inferior venacava and Superior venacava bring blood back to heart from lower parts and upper parts of body respectively.

·   Where in your body is your patella: Knee ( it's the kneecap

·   80% of household dust is actually what material-Dead skin

·   Babies are born without what-Knee Caps - form at 2-6 years

·   In Nuclear DNA is concentrated in chromatin.

·   Proteins are synthesized by golgi bodies.

·   Cellulose respiration is done by Mitochondrion.

·   Protoplasm is a colloidal solution.

·   Man is Homoeothermic.

·   Hydrosis is the medical term for what -Sweating

·   An IVP is used to detect what medical condition- Kidney Stones- Intravenuspylorigram

·   What part of the body ages the fastest-The Hands

·   In medicine what is nicknamed a blue pipe-A Vein

·   What is the name of the cranial bone just above your ear Temporal

What is the name of the scale measuring depth of coma (GCS)-Glasgow Coma Scale