Highlight any four areas where genetic modification of plants has been useful.

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10.Biotechnology and its Application

easy

Highlight any four areas where genetic modification of plants has been useful.

Option A

Option B

Option C

Option D

Solution

$(i)$ made crops more tolerant to abiotic stresses (cold, drought, salt, heat).
$(ii)$ reduced reliance on chemical pesticides (pest-resistant crops).
$(iii)$ helped to reduce post harvest losses.
$(iv)$ increased efficiency of mineral usage by plants (this prevents early exhaustion of fertility of soil).
$(v)$ enhanced nutritional value of food, e.g., Vitamin $‘A’$ enriched rice.

Standard 12

Biology

Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of

medium

(NEET-2015)

$A$ : $RNAi$ takes place in all eukaryotic organisms as a method of cellular defense.

$R $ : Complementary $dsRNA$ molecule binds to specific $mRNA$ and prevents its translation (silencing).

medium

Identify the incorrect statement.

$(i)$ Bacillus thuringiensis are available in sachets as dried spores which are mixed with kerosine and sprayed on to vulnerable plants

$(ii)$ B. thuringiensis are used to control butterfly caterpillars, but leave other insects unharmed

$(iii) $ The toxin of B. thuringiensis is released in the blood of larvae and the larvae get killed

$(iv)$ By the development of methods of genetic engineering B. thuringiensis toxin genes have been introduced

medium

Gene expression can be controlled with the help of $\rm {RNA}$ . Explain the method with an example.

medium

What is antisense technology ?

medium

(AIPMT-2009)

Highlight any four areas where genetic modification of plants has been useful.

Solution

Similar Questions

Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of

$A$ : $RNAi$ takes place in all eukaryotic organisms as a method of cellular defense. $R $ : Complementary $dsRNA$ molecule binds to specific $mRNA$ and prevents its translation (silencing).

Gene expression can be controlled with the help of $\rm {RNA}$ . Explain the method with an example.

What is antisense technology ?

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$A$ : $RNAi$ takes place in all eukaryotic organisms as a method of cellular defense.

$R $ : Complementary $dsRNA$ molecule binds to specific $mRNA$ and prevents its translation (silencing).