Which of the following statements best explains why modification or change in an organ or tissue during the lifetime of an individual is not inherited?

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#Question id: 39291

#Plant Biotechnology

Q. Assertion: In plant breeding, cytoplasm transfer via somatic hybridization is significantly faster than conventional backcrossing. 

Reason: Protoplast fusion can achieve in one year what typically takes 5–6 years through the backcrossing method.

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#Question id: 39292

#Plant Biotechnology

Q. Assertion: Symmetric hybrids allow for the transfer of genes between species that are sexually incompatible. 

Reason: Somatic hybridization bypasses the requirements of pollination and fertilization, enabling fusion between even completely sterile lines like monoploids.

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#Question id: 39293

#Plant Biotechnology

Q. Assertion: Cybridization enables the creation of unique organelle combinations that cannot be produced through sexual reproduction. 

Reason: Somatic fusion allows the mitochondria of one species to be combined with the chloroplasts of another, often resulting in recombinant organellar genomes. 

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#Question id: 39294

#Plant Biotechnology

Q. Assertion: Somatic hybridization is currently the primary method used for the commercial improvement of all major cereal and pulse crops. 

Reason: Techniques for protoplast isolation, culture, and fusion are not yet readily available for many important cereals and pulses.

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#Question id: 39295

#Plant Biotechnology

Q. Assertion: Chromosome elimination in somatic hybrids is a highly predictable process used for precise gene mapping. 

Reason: Genetic instability is a common limitation in somatic hybrids, particularly in wide interfamilial crosses, often resulting in abnormal or sterile plants.

TLS Online TPP Program

#Question id: 39296

#Plant Biotechnology

Q. Which parental combination was used to develop high nicotine content in tobacco?