Optimal length of prokaryotic promoter should be

TLS Online TPP Program

#Question id: 18003

#Unit 9. Diversity of Life Forms

In a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? 

1. micropyle 2. style 

3. ovary 4. stigma 

TLS Online TPP Program

#Question id: 13205

#Unit 6. System Physiology – Plant

The mechanisms that regulate the loading of sucrose from the apoplast to the sieve elements by the sucrose–H+ symporter await characterization. Possible regulatory factors include the following:

a) The solute potential or, more likely, the turgor pressure of the sieve elements

b) Sucrose concentration in the apoplast

c) The available number of symporter protein molecules

Which one of the mechanism that involve to regulate the loading of sucrose?

TLS Online TPP Program

#Question id: 13003

#Unit 8. Inheritance Biology

If 200 meiocytes with AaBb and   80 meiocytes  undergoes to single crossing over between  gene A and B. What will be the chance of crossing over and what is the recombination frequency of the gametes?

TLS Online TPP Program

#Question id: 16100

#Unit 7. System Physiology – Animal

Heat-loss mechanism:

TLS Online TPP Program

#Question id: 19330

#Unit 12. Applied Biology

Which one of the following can be used to measure the environmental and water quality?