At high altitudes atmospheric pressure is low, so body does not get enough of oxygen. The body acclimatizes by – Increasing production of RBC Read More …
Author: Dr. Karuna Sharma
Ph.D. Environmental sciences, M.Sc. Zoology, Gold medalist, Goa University Topper. Conduct classes for NEET and NET Life Sciences
How does the retrovirus replicate in the human body and interfere with its immune system? How can it be diagnosed and treated?
Virus enters into macrophages. Viral RNA replicates to form viral DNA with the help of reverse transcriptase. Viral DNA gets incorporated into host DNA. Read More …
How does the transmission of typhoid and pneumonia take place? Give names of the organisms causing them and the symptoms of these diseases.
Name of disease Mode of transmission Causative organism symptoms Typhoid Enter the intestine through food and /water , then migrate to other organs Read More …
How does inbreeding contribute in animal husbandry? Give the effect and solution of continued inbreeding .
Inbreeding increases homozygosity , helps to evolve a pureline in any animal, exposes harmful recessive genes that are eliminated by selection, helps in accumulation of superior Read More …
Mention the names and uses of microbes in commercial production of organic acids and bioactive molecules
Acid producer microbe name Type of microbe Name of acid produced Aspergillus niger Fungus citric acid Acetobacter aceti bacterium acetic acid Clostridium butylicum Read More …
Sheela starts sneezing and her nose starts running when she is exposed to Acacia pollens , as she is allergic to these pollens. This is caused due to a chemical released from the mast cells called: a) Alanine b) Histamine C) Leucine d) Cysteine
Histamine.
Explain how human insulin is produced using recombinant DNA technique.
Insulin consists of two short polypeptide chains: chain A and chain B, that are linked together by disulphide bridges. In humans, insulin is synthesised Read More …
What is a palindrome in a DNA? Describe the role of restriction enzymes on palindrome.
A palindrome in DNA is a sequence of base pairs that reads same on the two strands when orientation of reading is kept the Read More …
Give an account of adaptive radiation with an example from the Galapagos Islands.
The process of evolution of species in a given habitat (geographical area) starting from a point and radiating to other habitats is called Adaptive Read More …
A population census report 2009 – 2010 shows that a major section of the Goan population has migrated to western countries . Predict the effect on the Hardy – Weinberg equilibrium.
The Hardy – Weinberg equilibrium will change.