Q. Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of

View solution

Q. The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the

View solution

Q. Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?

View solution

Q. Establishment of embryogenic cell suspensions with high regeneration potential is a pre-requisite for successful

View solution

Q. Which of the following technique can be used to develop nematode resistant plants?

View solution

Q. Random amplified polymorphic DNA (RAPD) is a method that

View solution

Q. Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions?

View solution

Q. During meiosis crossing over takes place at

View solution

Q. Which of the following transposable elements are not found in plants?

View solution

Q. A plasmid used to introduce BT toxin into a plant cell

View solution

Q. The homologous chromosomes follow the process of synopsis in the

View solution

Q. When F1 plants are crossed with homozygous recessive plants, it is known as

View solution

Q. The shortest of mitotic phases is the

View solution

Q. In case of incomplete dominance, the phenotypic ratio of a monohybrid cross will be

View solution

Q. In the meiotic cell divison in daughter cells are produced by two successive division in which

View solution

Q. What is the approximate size (in kb) of the melon mitochondrial genome?

View solution

Q. When an organism has a life cycle with alternation of generations, the haploid generation is the

View solution

Q. When do kinetochore microtubules pull chromosomes towards opposite spindle poles?

View solution

Q. Resistance to sulphonyl urea compounds in transgenic tobacco plant has been developed by the transfer of

View solution

Q. In transgenic plants that have been manipulated to express patho-genesis-related (PR) proteins all the time it has been shown that

View solution