During Vulval induction in C. elegans, the anchor cell secretes, a paracrine factor which receives by VPCs and become vulva. If the anchor cell is destroyed, the VPCs will not form a vulva. This is the example of:

TLS Online TPP Program

#Question id: 19707

#Unit 13. Methods in Biology

Currents caused by opening of which of the following channels contribute to the repolarization phase of the action potential ofventricular muscle fibers?

TLS Online TPP Program

#Question id: 19708

#Unit 13. Methods in Biology

In complete heart block

TLS Online TPP Program

#Question id: 19709

#Unit 3. Fundamental Processes

Following are statements related to the telomere related to the stability chromosome

a) protecting the ends of chromosomes from degradation 

b) preventing chromosomal end fusion

c) protect genome from nucleolytic degradation

d) provide a mechanism for their replication by semiconservative length maintenance 

choose the correct statement 

TLS Online TPP Program

#Question id: 19710

#Unit 3. Fundamental Processes

Telomeric sequences can be written in the general form 

TLS Online TPP Program

#Question id: 19711

#Unit 3. Fundamental Processes

Telomere are marker for the healthy cell, if the cell shows indefinite replication (embryonic or stem cell) the size of telomere lies between the range of  

TLS Online TPP Program

#Question id: 19712

#Unit 3. Fundamental Processes

Size of telomeric sequences are marker for the cell division and healthy cell,  Below some of the stages and sizes of telomere are given below

i. 3 – 20 kb (TTAGGG)n	a. cancerous cell
ii. less than 3 kb (TTAGGG)n	b. apoptotic cell death
iii. Ends with no (TTAGGG)n	c. limited replication
iv. Up to 55 kb of (TTAGGG)n	d. indefinite replication

Match them correctly