Hematopoietic stem cells has the ability to divide into lymphoid progenitor cell as well as myeloid progentior cell only, this is an example of

TLS Online TPP Program

#Question id: 15280

#Unit 5. Developmental Biology

The mechanisms governing cell fate specification involves gradients of paracrine factors that regulate gene expression; such factors are called:

TLS Online TPP Program

#Question id: 15281

#Unit 5. Developmental Biology

What is morphogen?

TLS Online TPP Program

#Question id: 15282

#Unit 5. Developmental Biology

what is the difference between morphogen and morphogenetic determinants?

TLS Online TPP Program

#Question id: 15283

#Unit 5. Developmental Biology

Following are certain statements regarding

morphogen gradients and cell specification.

A. Morphogens are always transcription factors

B. Morphogens can be paracrine factors that are produced in one group of cells and travel to another population of cells

C. When the concentration of a morphogen drops below a certain threshold, cells stop differentiating and never get determined to another fate

D. Morphogen gradients are involved in conditional specification

Which combination of the above statements is true?

TLS Online TPP Program

#Question id: 15284

#Unit 5. Developmental Biology

Morphogens can be:

1. Transcription factors

2. Paracrine factors

3. Cell adhesion factors

4. Non-diffusable molecules

TLS Online TPP Program

#Question id: 15285

#Unit 5. Developmental Biology

The range of a paracrine factor (and thus the shape of its morphogen gradient) not depends on: