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TLS Online TPP Program

#Question id: 15419

Doris Taylor’s research group used detergents to remove all the cells from a cadaveric rat heart, which leaves behind the natural extracellular matrix. An extracellular matrix scaffold can promote the differentiation and rebuilding of a beating heart. The researchers then infused this ECM scaffold with cardiomyocytes. Now these cells differentiated and organized into a functionally contracting “recellularized” heart. Which of the following statement is correct?

#Unit 5. Developmental Biology
  1. The decellularized ECM were instructive in allowing the cardiomyocytes to recreate contracting heart muscle.
  2. The decellularized ECM were permissive in allowing the cardiomyocytes to recreate contracting heart muscle.
  3. The decellularized ECM were permissive and instructive both & allowing the cardiomyocytes to recreate contracting heart muscle.
  4. The decellularized ECM were involve in Epithelial-mesenchymal interaction to allowing the cardiomyocytes to recreate contracting heart muscle.
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TLS Online TPP Program

#Question id: 28151

#Unit 1. Molecules and their Interaction Relevant to Biology

Technique based on atomic properties is NMR, NMR Provides Information on an
TLS Online TPP Program

#Question id: 28152

#Unit 1. Molecules and their Interaction Relevant to Biology

Q. NMR signals arise from some properties of atomic nuclei, which are
A. Magnetic moment
B. Angular momentum of the nuclear spin
C. Electronic range
D. Resistivity
Which of the following is true 
TLS Online TPP Program

#Question id: 28153

#Unit 1. Molecules and their Interaction Relevant to Biology

Nuclei that contain an even numbers of protons and an even number of neutrons have I=0 and are known as
TLS Online TPP Program

#Question id: 28154

#Unit 1. Molecules and their Interaction Relevant to Biology

Q. Isotope, Natural Abundance, and  spin (I) are given, and some statement are made
a. 12C=98.9%=NMR-active
b. 16O=99.9%=NMR-active
c. 12C=98.9%=NMR-inactive
d. 16O=98.9%=NMR-inactive
Which of the following is true
TLS Online TPP Program

#Question id: 28155

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following has smallest Bond length in Ang.
TLS Online TPP Program

#Question id: 28156

#Unit 1. Molecules and their Interaction Relevant to Biology

Some statement are given regarding Platelet-activating factor 
a. It is more water-soluble than most glycerophospholipids and plasmalogens
b. It has a long ether-linked alkyl chain at C-1 of glycerol
c. This released from basophils 
d. It stimulates platelet aggregation and the release of vasoconstrictor serotonin from platelets
Which of the following is true