TLS Online TPP Program

#Question id: 15678


Alcohols are among the most widely used disinfectants and antiseptics. They act by 

#Unit 2. Cellular Organization
  1. Decreasing osmotic pressure
  2. Increasing osmotic pressure
  3. denaturing proteins and possibly by dissolving membrane lipids
  4. All
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TLS Online TPP Program

#Question id: 31062

#Unit 2. Cellular Organization

During G1, a cell must evaluate its status and decide whether it is appropriate to commit to doubling and cell division. Which of the following assessment is not correct regarding the cell?

TLS Online TPP Program

#Question id: 5381

#General Aptitude

A man travels from destination A and B by car to an average speed of 48 km/h and returns on his bike with an average speed of 16 km/h .Find his average speed for the entire journey

TLS Online TPP Program

#Question id: 3058

#Unit 2. Cellular Organization

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample

TLS Online TPP Program

#Question id: 12641

#Unit 6. System Physiology – Plant

 Among the diverse components of plant defense arsenals are proteins that interfere with herbivore digestion, Given some defense compound of plants in column I with its given action in column II

Column I

column II

I)  α-amylase inhibitors

a) Antidigestive proteins, block the action of herbivore proteolytic enzymes. After entering the herbivore’s digestive tract, they hinder protein digestion by binding tightly and specifically to the active site of protein-hydrolyzing enzymes such as trypsin and chymotrypsin

II) Lectins

b) block the action of the starch-digesting enzyme

III) proteinase inhibitors

c) A defensive proteins that bind to carbohydrates or carbohydrate-containing proteins. After being ingested by an herbivore, bind to the epithelial cells lining the digestive tract and interfere with nutrient absorption

Correctly match the defence compound withits action on herbivore;

TLS Online TPP Program

#Question id: 23875

#Unit 13. Methods in Biology

One successful form of gene therapy has involved delivery of an allele for the enzyme adenosine deaminase (ADA) to bone marrow cells of a child with SCID, and delivery of these engineered cells back to the bone marrow of the affected child. What is one major reason for the success of this procedure as opposed to many other efforts at gene therapy?