The absence of MHC class I, which is expressed by almost all normal cells, but is specifically down-regulated by some tumors and in response to some viral infections, it will undergo apoptosis by

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#Question id: 7023

#Unit 5. Developmental Biology

When Chordin mRNA is injected into the dorsal region of Drosophila embryos, it induces:

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#Question id: 3438

#Unit 11. Evolution and Behavior

The type of learning that causes specially trained dogs to salivate when they hear bells is called

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#Question id: 5092

#Unit 5. Developmental Biology

The least amount of yolk would be found in the egg of a ________.

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#Question id: 9252

#Unit 9. Diversity of Life Forms

Which of these environmental factor(s) is/are the key determining factor(s) that control(s) the biotic structure of aquatic biomes?

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#Question id: 31378

#Unit 5. Developmental Biology

The following experimental manipulations were carried out with Xenopus embryo.

Manipulation X: Exposure to UV radiation leading to the failure of cortical rotation.

Manipulation Y: Gastrulae treated with lithium chloride.

The following statements were made with respect to the above manipulations. Which one of the following represents correct statement?