Consider the accompanying pedigree of a rare autosomal recessive disease, PKU. Male with PKU marry with normal female whose father is PKU. What is probability of child affected with PKU?

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#Question id: 7098

#Unit 5. Developmental Biology

The role of maternal factors (such as Vg-1, Xwnt-1, and VegT) packaged into the vegetal region of the Xenopus oocyte is:

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#Question id: 13013

#Unit 10. Ecological Principles

Suppose the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species? 

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#Question id: 16317

#Unit 7. System Physiology – Animal

Developmental stress:

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#Question id: 28581

#Unit 2. Cellular Organization

Which one of the following is Labile factors that involve to drive the progression of cells through different stages of the cell cycle?

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#Question id: 4852

#Unit 8. Inheritance Biology

The R and S loci are 20 m.u. apart. If a plant of genotype Rs/rS were allowed test cross ,which of the following progeny having 10% proportional ?