PLANT BIOTECHNOLOGY AND TISSUE CULTURE
Q.1
Crossing of plants through fusion of somatic cell is
Ans.
Somatic hybridization.
Q.2
Chromomere is a
Ans.
Serially aligned beades or granules of eukaryotic chromosome from local coiling of continuous DNA thread.
Q.3
DNA ligase is
Ans. An enzyme that closes nicks or discontinuities in one strand of double stranded DNA by creating a bond.
Q.4
DNA first synthesised by
Ans.
A Kork Beng (1953).
Q.5
Father of genetic engineering
Ans.
Paul Berg.
Q.6
Hybridization is
Ans.
Crossing of two genotypically different plants. Genes from both plants are brought together.
Q.7
m-RNA
Ans.
Made up of single stranded molecule, life span is 2 min. at 37°C in E-coli.
Q.8
The insoluble RNA that constitutes the largest part of cellular RNA (About 80%).
Ans.
r-RNA.
Q.9
Genomes is
Ans.
Complete set of chromosomes found in the gamete of true diploid (True diploid are individual with two set of chromosomes).
Q.10
Explant is
Ans.
An excised fragment of a tissue or an organ used to start tissue culture.
Q.11
Indole acetic acid inhibits growth of the
Ans.
Roots.
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