In a altruistic behavior occur between nephew and uncle, which of the following value of cost of donor and benefit of recipient respectively allowed to altruism?

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#Question id: 28516

#Unit 5. Developmental Biology

The two-experiment performed by a scientist with a forelimb mesenchyme and seeing their results;

I-leg mesenchyme is placed directly beneath the wing AER

II-limb mesenchyme is replaced by non-limb mesenchyme beneath the AER

Conclusion of these experiment are seeing; 

a) distal hindlimb structures develop at the end of the limb

b) supernumerary structures are formed, usually toward the distal end of the limb

c) the AER regresses and limb development ceases

Select the correct result about these experiments-

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#Question id: 28517

#Unit 5. Developmental Biology

What would be the effect of FGFs and Wnts treatment on the ‘bone formation’ of young limb bud mesenchyme?

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#Question id: 28518

#Unit 5. Developmental Biology

Achondroplasia is caused by base-pair substitution mutation that converts ____

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#Question id: 28519

#Unit 5. Developmental Biology

A Condition wherein chondrocytes stop proliferating earlier than usual, resulting in short limbs, that causes

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#Question id: 28520

#Unit 5. Developmental Biology

Thanatophoric dysplasia is caused by the mutation in which of the following;

a) base-pair substitution that converts glycine to arginine 

b) extracellular domain of the FgfR3 protein

c) transmembrane domain of the FgfR3 protein

d) tyrosine kinase intracellular domain of the FgfR3 protein

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#Question id: 28521

#Unit 5. Developmental Biology

 Which of the following stage of the diploid life cycle commences with the fusion of the haploid egg and sperm to form the single-celled ?