which of the following amino acid that participates in the malate–aspartate shuttle to transfer reducing equivalents from the mitochondrion and chloroplast into the cytosol?

TLS Online TPP Program

#Question id: 37970

#Plant Biotechnology

Statement I: Hot treatment (e.g., 30°C for 24h) in Brassica stimulates embryogenesis by causing the dissolution of microtubules and displacement of the spindle.

Statement II: This thermal shock leads to normal division of the microspore nucleus.

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#Question id: 37971

#Plant Biotechnology

Statement I: Ethrel (2-chloroethylphosphonic acid) treatment increases haploid production by inducing multinucleated pollen grains.

Statement II: Pollen grains induced by Ethrel treatment are characterized by having a high density of starch grains.

TLS Online TPP Program

#Question id: 37972

#Plant Biotechnology

Statement I: Commitment to androgenesis is achieved mainly by the overexpression of pollen maturation ('late') genes.

Statement II: In wheat, the synthesis of a metallothionein-like protein during induction is regulated by Abscisic Acid (ABA).

TLS Online TPP Program

#Question id: 37973

#Plant Biotechnology

Statement I: In cereal species like rice and wheat, modifying the medium composition can determine whether the cell mass forms an embryo or a callus.

Statement II: The formation of a callus versus a globular embryo is strictly dependent on the temperature and cannot be influenced by the species type.

TLS Online TPP Program

#Question id: 37974

#Plant Biotechnology

Which of the following phenomena is primarily responsible for the wide variation in ploidy levels observed in plants regenerated from anther or microspore culture?

TLS Online TPP Program

#Question id: 37975

#Plant Biotechnology

In the context of determining ploidy in potato plants using stomatal guard cells, a chloroplast count of 18–24 per guard cell indicates that the plant is: