Dosage Compensation in case of mammal is result in

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#Question id: 16955

#Unit 4. Cell Communication and Cell Signaling

Stage thymocytes express neither CD4 nor CD8, markers associated with mature T cells. They are therefore called double negative (DN) cells. DN cells first travel to the region under the thymic capsule, a region referred to as the ________, where they proliferate and begin to generate their T-cell receptors. Thymocytes that successfully express TCRs begin to express both CD4 and CD8, becoming double positive (DP) cells, and populate the cortex, the site where most (85% or more) immature T cells are found.

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#Question id: 5537

#Unit 5. Developmental Biology

The segmented blocks of tissue that develop on each side of the notochord are called the

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#Question id: 12572

#Unit 10. Ecological Principles

Use what you know about ecosystem stability and the information provided in the graph below to answer the following question.

Which community (a-e) would likely be the most biodiverse?

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#Question id: 20972

#Unit 12. Applied Biology

Which of the following is not a characteristic of the immobilized enzymes?

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#Question id: 2897

#Unit 2. Cellular Organization

The transcription of most protein coding genes in mammals (~70 percent) occurs at a lower rate than at TATA box–containing and initiator-containing promoters and begins at any of several alternative start sites within regions of about 100–1000 bp that have an unusually high frequency of CG sequences. Which one of the following best explains it?