Which of the following biomes spans the largest annual mean temperature range, but the narrowest mean precipitation range?

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#Question id: 5061

#5. Developmental Biology

 The activin family, the bone morphogenetic proteins (BMPs), the Nodal proteins, the Vg1 family included in-

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#Question id: 5069

#5. Developmental Biology

 The central player in the “canonical” Wnt intracellular signal transduction pathway is called β-catenin in vertebrates and in Drosophila (the homolog of b-catenin):

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#Question id: 19845

#13. Methods in Biology

SYBR Green qPCR method is based on____I_______ with the _____II______ relationship.

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#Question id: 15779

#5. Developmental Biology

During stem cell regulation extracellular mechanisms leading to intracellular changes that regulate stem cell behaviour. Which of the following is not consider as extracellular mechanisms for stem cell regulation?

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#Question id: 19874

#13. Methods in Biology

Adding homopolymer tails to the 3’ end of DNA by an enzyme such as