Q. Assertion (A): In vitro culture is considered the superior method for the maintenance of virus-free plant stocks. 

Reason (R): In vitro methods are more efficient and cost-effective compared to large-scale field multiplication.

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#Question id: 5071

#Zoology

Defect in hedgehog signaling cause, basal cell nevus syndrome, a rare autosomal dominant condition characterized by both developmental anomalies (fused fingers; rib and facial abnormalities) and multiple malignant tumors. This condition created due to mutation in

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#Question id: 5072

#Zoology

Movement of epithelial cells as a unit to enclose deeper layers of the embryo. This type of cell movement during gastrulation occur in:

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#Question id: 5073

#Zoology

The emergence of the polarity of an embryo is the result of:

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#Question id: 5074

#Zoology

The "mid-blastula transition" is the point in development when:

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#Question id: 5075

#Zoology

Which of the following developmental processes has been most recently completed in the amphibian embryo shown here?

 

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#Question id: 5239

#Biochemistry

Which of the following statements is not true for Hfr strains of E. coli ?