Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 30790
TLS Online TPP Program

#Question id: 15604

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

#Unit 12. Applied Biology
  1. Each and every individual bacterium, in order to survive, develops a resistance to the antibiotic when exposed to it, and passes that resistance on to future generations.
  2. Only some bacteria, in order to survive, develop a resistance to the antibiotic when exposed to it, and pass that resistance on to future generations.
  3. A few bacteria have a natural heritable resistance to the antibiotic, so they survive when exposed to it, and pass that resistance on to future generations.
  4. All the bacteria have a natural heritable resistance to the antibiotic, so they survive when exposed to it, and pass that resistance on to future generations
More Questions
TLS Online TPP Program

#Question id: 3541

#Unit 8. Inheritance Biology

Blue follower is dominant over white flower and long pollen is dominant over short pollen. A plant with Blue flower and short pollen was cross with white flower and long pollen. All F1 offspring display blue flower and long pollen. What is the percent of F2 progeny showing blue flower and long pollen?
TLS Online TPP Program

#Question id: 12520

#Unit 6. System Physiology – Plant

During the biosynthesis of precursor All-trans-β-carotene is isomerized to 9-cis-β-carotene by ____A_____While 9-cis-β-Carotene is cleaved by carotenoid cleavage_____B_______ to produce_____C______.
TLS Online TPP Program

#Question id: 23922

#General Aptitude

Pollutants in soil can be broken down by micro organisms. The process is called:
TLS Online TPP Program

#Question id: 11942

#Unit 7. System Physiology – Animal

A patient’s urine is collected for 2 hr, and the total volume is 600 ml during this time. Her urine osmolarity is 150 mOsm/L, and her plasma osmolarity is 300 mOsm/L. What is her “free water clearance”?
TLS Online TPP Program

#Question id: 23254

#Unit 13. Methods in Biology

FISH or GISH is used to _____ and ______ the presence or absence of specific DNA sequences on chromosomes.