If a cross is made between  two plant heights  46cm and 10cm. The f2 Genotype has been shown;

I) AABBCC - 2) AABBCc – 3) AABbCc – 4) AaBbCc–  5) AaBbcc – 6) Aabbcc – 7) aabbcc –

Find out the 

i) phenotypic values of the given character 

ii) determining the no of polygenes involves and 

iii) what will be the no of QTL?

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#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?

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#Question id: 15284

#Unit 5. Developmental Biology

Morphogens can be:

1. Transcription factors

2. Paracrine factors

3. Cell adhesion factors

4. Non-diffusable molecules

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#Question id: 15285

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 15286

#Unit 5. Developmental Biology

In the case of the French flag model. we assume a source of morphogen at one end and a sink at the other and that the concentrations of morphogen at both ends are kept constant but are different from each other. If the cells can respond to threshold concentrations of the morphogen, Thresholds can represent the

TLS Online TPP Program

#Question id: 15287

#Unit 5. Developmental Biology

Following are postulates of mechanism of differentiation. Which of the following is incorrect?

TLS Online TPP Program

#Question id: 15288

#Unit 5. Developmental Biology

Which of the following not a property of responder cell?