Which of the following is an important source of endotoxin in gram-negative species?

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#Question id: 15420

#Unit 5. Developmental Biology

signal from the inducing cell is necessary for initiating new gene expression in the responding cell. Without the inducing cell, the responding cell is not capable of differentiating in that particular way, phenomena known as:

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#Question id: 15421

#Unit 5. Developmental Biology

A signal from the inducing cell is necessary for initiating new gene expression in the responding cell. Without the inducing cell, the responding cell is not capable of differentiating in that particular way, phenomena known as:

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#Question id: 15422

#Unit 5. Developmental Biology

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:

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#Question id: 15738

#Unit 5. Developmental Biology

In humans and many other mammals, the sex chromosomes are called:

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#Question id: 15739

#Unit 5. Developmental Biology

 In mammals, If no Y chromosome is present then transcription factors Wt1, Lhx9, GATA4, and Sf1 activate expression of:

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#Question id: 15740

#Unit 5. Developmental Biology

The position of the testis-determining gene was narrowed down to a 35,000-base-pair region of the: