TLS Online TPP Program

#Question id: 3516


Cross allowed between pure line tall plant with pure line dwarf plant , all F1 having tall phenotype were allowed to self to produced  200 plant The number of F2 plant having pure line tall phenotype?

#Unit 8. Inheritance Biology
  1. 75          

  2. 25         

  3. 50           

  4. 100

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TLS Online TPP Program

#Question id: 5679

#Unit 5. Developmental Biology

Following statements regarding to the molecular processes of capacitation.

A. The sperm cell membrane is altered by the removal of albumin by cholesterol in the female reproductive tract.

B. Particular proteins or carbohydrates on the sperm surface are lost during decapacitation.

C. The membrane potential of the sperm cell becomes more positive as potassium ions leave the sperm. This change in membrane potential may allow calcium channels to be opened and permit calcium to enter the sperm.

D. Calcium and bicarbonate ions are critical in activating cAMP production and in facilitating the membrane fusion events of the acrosome reaction.

E. As a result of cAMP formation, protein phosphorylation occurs. Once they are phosphorylated, some proteins migrate to the surface of the sperm head. One of these proteins is izumo, which is critical in sperm-egg fusion.

which one of the following combinations is correct?

TLS Online TPP Program

#Question id: 12922

#Unit 13. Methods in Biology

 Match the following:-
1. Ligase chain reaction.              i. Mutation detection
2. Nucleic acid sequence based   amplification.                            ii.Non isothermal                   
3. Loop mediated isothermal amplification.                      iii. Viral detection
4. Branched DNA amplification.   iv.parasitic disease

TLS Online TPP Program

#Question id: 24231

#Unit 4. Cell Communication and Cell Signaling

Match the following classes of classical cadherins with their functions.
 
a. E-cadherin      1.present on many types of epithelial cells
b. N-cadherin      2.present on nerve, muscle and lens cells
c. P-cadherin       3.present on cells in the placenta & epidermis

TLS Online TPP Program

#Question id: 18372

#Unit 12. Applied Biology

Which enzyme is used to degrade of chlorinated solvents and pesticides present in soil makes the soil contaminated

TLS Online TPP Program

#Question id: 24603

#Unit 2. Cellular Organization

Presence of introns leads to which phenomenon