#Question id: 5383
#General Aptitude
12 yr ago the average age of a husband and a wife was 20 yr .The average remains the same today when they have two children. What is the present age of the youngest child if they differ in age by 2 yr.
#Question id: 5140
#Unit 5. Developmental Biology
Following statements regarding to the Ectodermal competence and the ability to respond to the optic vesicle inducer in Xenopus.
A. The optic vesicle is able to induce lens formation in the posterior portion of the ectoderm but not in the anterior portion.
B. If the optic vesicle is removed, the surface ectoderm forms either an abnormal lens or no lens at all.
C. Only head ectoderm is competent to respond to the signals from the optic vesicle by producing a lens.
D. The head ectoderm appears to secrete two paracrine factors BMP 4 and FGF8, which involves in the activation of lens-specific genes such as crystallin.
Which of the following combination is incorrect?
#Question id: 4969
#Unit 11. Evolution and Behavior
The snowball Earth hypothesis provides a possible explanation for the
#Question id: 23288
#Unit 8. Inheritance Biology
#Question id: 1769
#Unit 4. Cell Communication and Cell Signaling
Which one of the antibody have multiple subtype?