Vg-1 and wnt are used in both frogs and chicks to establish a body axis, although in chicks this is the antero-posterior axis instead of the dorso-ventral axis. What is the region of the chick embryo that is thus analogous to the Nieuwkoop center?

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#Question id: 16318

#Unit 7. System Physiology – Animal

Situational Stress:

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#Question id: 4731

#Unit 8. Inheritance Biology

A pure-breeding strain of squash that produced disk-shaped fruits was crossed with a pure breeding strain having long fruits. The F1 had disk fruits, but the F2 showed a new phenotype, sphere, and was composed of the following proportions

Disk  384            

Sphere 96

 Long  32

What is reason for F2 phenotype?

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#Question id: 16790

#Unit 13. Methods in Biology

For the moderately symmetrical distribution of age of the employees, mean = 20 and mode = 25. The approximate value of the median is: 

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#Question id: 11485

#Unit 7. System Physiology – Animal

In the odorant cells of mammals, specific odorants are detected by binding to _______

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#Question id: 51

#Unit 1. Molecules and their Interaction Relevant to Biology

 If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 10⁵ M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.