The metamorphic changes of frog development are brought about by following events.

(A) the secretion of the hormone thyroxine (T4) into the blood by the thyroid gland

(B) the degradation of T3 in the target tissues

(C) the conversion of (T4) into the more active hormone, triiodothyronine (T3) by the target tissues

Which of the following series is correct?

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#Question id: 1547

#Unit 4. Cell Communication and Cell Signaling

follicular dendritic cells (FDCs) secrete CXCL13 and its receptor, CXCR5, which is expressed on B cells, function of this interaction ?

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#Question id: 11665

#Unit 7. System Physiology – Animal

Materials are returned to the blood from the filtrate by which of the following processes?

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#Question id: 11890

#General Aptitude

The number between 4000 and 5000 that is divisible by each of 12, 18, 21 and 32 is

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#Question id: 796

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement best describes the distinction between the purposes of the two RNAi pathways within the eukaryotic cell?

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#Question id: 5605

#Unit 5. Developmental Biology

Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the