The processes by which the three ectodermal regions are made physically and functionally distinct from one another is called neurulation. Following statements are regarding to the mechanism of neurulation.

A. The specification of the ectoderm is accomplished during gastrulation, primarily by regulating the levels of BMP experienced by the ectodermal cells.

B. High levels of BMP specify the cells to become neural plate.

C. Very low levels specify the cells to become epidermis.

D. Intermediate levels effect the formation of the neural crest cells.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 2618

#Unit 2. Cellular Organization

The three genes (lacZ, lacY, and lacA) are transcribed as a single mRNA from the promoter, these genes are expressed at high levels only when

TLS Online TPP Program

#Question id: 2619

#Unit 2. Cellular Organization

CAP and the Lac repressor; Which one is incorrect about this.

TLS Online TPP Program

#Question id: 2620

#Unit 2. Cellular Organization

Which option is correct about catabolite activator protein binds as

TLS Online TPP Program

#Question id: 2621

#Unit 2. Cellular Organization

The leaky expression of lac genes ensures that,

TLS Online TPP Program

#Question id: 2622

#Unit 2. Cellular Organization

The form of RNA polymerase that transcribes the glnA gene contains the

TLS Online TPP Program

#Question id: 2623

#Unit 2. Cellular Organization

Combinatorial control is a characteristic feature of ;