DEFINITATION & KEY POINTS OF APPLICATIONS OF GENETICS IN PLANT IMPROVEMENT

TERMS                     DEFINITIONS
Hybridization The crossing of different varieties of plants species is called hybridization.
Transgenic plants The   plants    with   foreign    DNA     are   called

transgenic plants.

Genetic variability The   amount    by    which    individuals     in    a

population differ from one another due to their genes. rather than their environment is called genetic variability

Mutation The changes to the genetic material (either DNA or RNA) are called mutation.
Splice          site

mutation

In this case, the coding region of a gene may

alter   splicing    of   the   mRNA     (splice    site
mutation).

Frameshift mutations These mutations cause a shift in the reading frame.
Amormphic mutations When    the  allele   has  a   complete   loss of

function   (null    allele)  it   is   often   called an
amorphic mutation.

Genetic

recombination

Genetic    recombination   is  the    transmission‑

genetic process by Which the combinations of


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alleles   observed   at    different   loci     in   two

parental    individuals    become     shuffled    in
offspring.

Mutagens A    Mutagen  is   a   substance   or   agent  that

induces heritable change in cells or organisms.

Selection The process by which certain traits or gene are selected due to sonic environmental advantage is called selection.
Variety A population of plants that differ consistently from the typical form of the species, occurring naturally in a geographical area is called plant variety.

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  1. sahil khan December 7, 2015

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