TLS Online TPP Program

#Question id: 7202


Identify the correct match of the modes of regeneration (column I) with their definition (column II)

Column I

Column II

A. Stem cell-mediated regeneration

i. Through the re-patterning of existing tissues. There is often little new growth but rather cell death and a change in cell type (i.e., transdifferentiation into a different cell fate). This results in a rescaling of the whole organism as well as regeneration of the missing part.

B. Epimorphosis

ii. The differentiated cells divide but maintain their differentiated functions. The new cells do not come from stem cells, nor do they come from the dedifferentiation of adult cells.

C. Morphallaxis

iii. Adult structures can undergo dedifferentiation to form a relatively undifferentiated mass of cells (a blastema) that then redifferentiates during morphogenesis of the new

structure.

D. Compensatory regeneration

iv. Stem cells allow an organism to regrow certain organs or tissues that have been lost.

 

#Unit 5. Developmental Biology
  1. A-iv, B-iii, C-i, D-ii
  2. A-ii, B-iii, C-i, D-iv
  3. A-iii, B-iv, C-ii, D-i
  4. A-iv, B-ii, C-i, D-iii
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TLS Online TPP Program

#Question id: 33703

#Unit 2. Cellular Organization

What will be the buoyant density of a duplex DNA having 60% GC sequences

TLS Online TPP Program

#Question id: 33704

#Unit 2. Cellular Organization

Find true and false statements
A. Tandemly repeated sequences are liable to undergo misalignments during chromosome pairing
B. The sizes of tandem clusters tend to be homozygous in population
C. The smaller clusters of tandemly repeated sequences can be used to characterize individual genomes

TLS Online TPP Program

#Question id: 33705

#Unit 2. Cellular Organization

Choose combination of correct statements 

           

A. The main band contains 92% of the genome
B. The main band contains 10% of the genome
C. Smaller peak represents 30% GC content of genome
D. Smaller peak represents 60% GC content of genome

TLS Online TPP Program

#Question id: 33706

#Unit 2. Cellular Organization

The satellite DNA of the mouse M. musculus is digested by the enzyme EcoRII into a series of bands, including a predominant monomeric fragment of 

TLS Online TPP Program

#Question id: 33707

#Unit 2. Cellular Organization

The overall consensus sequence of the present satellite in human is 

TLS Online TPP Program

#Question id: 33891

#Unit 2. Cellular Organization

Find true & false
A. The rate of genetic exchange at minisatellite sequences is10-4 per kb of DNA. 
B. Genetic exchange at minisatellite is greater than the rate of homologous recombination
C. Slower genetic exchange at minisatellite makes population heterozygous