If blunt ended ligations are to be carried out. Which of the following enzymes can be used?

TLS Online TPP Program

#Question id: 23116

#Unit 2. Cellular Organization

Choose the correct statement 

a. The nucleosome is a disc with DNA organized into 22/3 turns around the core .

b. The nucleosome is a disc with DNA organized into 12/3 turns around the surface.

c. The nucleosome is a disc of 11 nm diameter and 6 nm height.

d. The nucleosome is a cylinder of 6 nm diameter and 11 nm height.

TLS Online TPP Program

#Question id: 7202

#Unit 5. Developmental Biology

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.

 

TLS Online TPP Program

#Question id: 11406

#Unit 10. Ecological Principles

Which of the following is true for a critically endangered species?

TLS Online TPP Program

#Question id: 23587

#Unit 13. Methods in Biology

Plasmids are usually introduced into bacterial cells by ________.

TLS Online TPP Program

#Question id: 28422

#Unit 5. Developmental Biology

in chick embryo, a thin layer of cells between the area pellucida and the area opaca is called___