Tutorial 9 : Global status of Genetically modified crops

Question 1

genetically modified crops

Answer 1

plants used in agriculture, the DNA pf which has been modified using genetic engineering methods

Question 2

transgenic

Answer 2

introduction of genes from different species

Question 3

cisgenic

Answer 3

using gene from the same/closely related species

Question 4

intragenesis

Answer 4

insertion of recombinant gentic info which is composed of a combination of different sequences from different genes from the same organism

Question 5

herbicide-tolerant transgenic crops

Answer 5

potential solution which can facilitate flexible use of robust non-selective and broad spectrum herbicides

Question 6

insect-resistant transgenic crops

Answer 6

crops have been transformed with insecticidal genes (most harmful different variants of cry gene, and in a few events VIP gene) which control the harmful insects attacking crops

Question 7

abiotic stress tolerance

Answer 7

plethora of environmental factors referred to as abiotic stresses, such as drought, heat, cold, flooding, salinity,… exert a negative impact on growth and development of crop plants, leading to reduction in grain yield.
to cope up with abiotic stresses, plants alter their metabolism in many ways and this mechanisms are used in GM plants

Question 8

disease resistance

Answer 8

diseases caused by pathogens, such as nematodes, fungi, bacteria and viruses, cause extensive loss in the crop yield.
it is thus important to develop inherent disease resistance in crop plants.
this requires understanding the genes responsible for disease resistance and transferring the same to plants through breeding or biotechnological approaches

Question 9

nutritional improvement

Answer 9

plant nutrient contents can either be increased by focussing on: vitamins, fatty acids content,and essential amino acids content,…

Question 10

genome editing

Answer 10

mutation of specific genes that we want to modify