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Below are a few statements about plant breeding and transgenesis:
A. Recombinant inbred lines and double haploid populations have high levels of genetic homozygosity.
B. Gene pyramiding Involves Introducing different genes for resistance to a specific pest in different genotypes of a plant species.
C. Agrobacterium strains with a disarmed TI plasmid do not require vir genes for transfer of T-DNA
D.Molecular breeding can be used for crop Improvement If the trait of Interest is present In naturally occurring populations of the plant.
Which one of the following options represents a combination of INCORRECT statements?
A and B
A and C
B and D
B and C
Answers (1)
The processing and transfer of T-DNA from Agrobacterium to plant cells is regulated by the activity of the vir genes. Gene pyramiding refers to the process of stacking multiple genes into a single genotype to combine desirable traits through recombinant DNA technology. Hence,the correct answer is option 4.
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