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TLS Online TPP Program

#Question id: 11130

Which of the following electrical events is characteristic of inhibitory synaptic interactions?

#SCPH28 | Zoology
  1. A neurotransmitter agent that selectively opens ligand-gated chloride channels is the basis for an inhibitory postsynaptic potential
  2. Because the Nernst potential for chloride is about −70 mV, chloride ions tend to move out of the cell along its electrochemical gradient
  3. A neurotransmitter that selectively opens potassium channels will allow potassium to move into the cell
  4. An increase in the extracellular sodium concentration usually leads directly to an inhibitory postsynaptic potential
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TLS Online TPP Program

#Question id: 5440

#SCPH28 | Zoology

Human height is control by 5 pair of polygene . A pure line dominant human has height of 100 cm while pure line of recessive human has 20 cm. What will be average height of human with genotype aabbCCDDEe?
TLS Online TPP Program

#Question id: 18870

#SCPH01 Biochemistry

Which element of the light microscope is in charge of regulating the amount of light that enters the viewing area?
TLS Online TPP Program

#Question id: 3640

#SCPH06 I Botany

Which of the following is true for the mechanism of excision repair?
TLS Online TPP Program

#Question id: 6951

#SCPH01 Biochemistry

In chick development, the cell movement during gastrulation is called:
TLS Online TPP Program

#Question id: 12911

#I Life Science/ Life Sciences Group – I-V

Match the following:
A. DNA polymerases              i. Alkaline phosphatase        a.RNA-dependent DNA polymerase, used in cDNA synthesis
B. Reverse transcriptase        ii. T4 DNA ligase                    b. Thermostable DNA polymerase used in PCR
C. Ligases                                 iii.  AMV-RT                            c. Removes 5′-phosphates from DNA and RNA
D. Phosphatases                     iv. Taq DNA pol                      d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond