Category: Biology Second Paper

1. Crops are high yielding and tolerant to environmental stress such as cold, drought, heat, salinity etc.
2. Food quality improves. Golden rice contains high levels of beta-carotene and soybeans contain omega-3s.
3. Quality of animals increases.
4. Crops are resistant to germs, insects and weeds.
5. Eco friendly and pollution free.
6. Food needs have been met.
7. It is possible to produce more food in less space.
8. Transgenic crops reduce the use of chemical pesticides.
9. Crop loss during storage is minimal.
10. Soil fertility is maintained. So no need to spend extra.

All the organisms that are created with different types of immunity by genetic modification are called GMO (Genetically Modified Organism) or GEO (Genetically Engineered Organism)). This organism is produced by transgenesis method.
In 1995, the first GMO food was declared safe for human consumption in America. By 1999, about 50% of crops, including cotton and soybeans, were known to be GM. In 2010, 9.8 million square kilometers of land in 29 countries of the world came under GM food crops. At present Argentina, Brazil, America, Switzerland, Canada, India etc. countries produce 90% GM food grains.

Dr. Md. Abu Bakkar Siddiq

BSc Honors (first class), MSc (first class), M. Phil, Ph. D

(Rajshahi University, Bangladesh)

Best Teacher and Gold Medalist-2011, 2012 and 2013 

Writer, Researcher and Teacher

Birshrestha Munshi Abdur Rouf Public College

BGB Head Quarter

Peelkhana

Dhaka

Bangladesh.

Dr. Siddiq Publications

Books: SSC, HSC, Medical Admission Test, University Admission Test and BCS
Contact for book collection: WhatsApp 01511483701

 

Glyphosate is a deadly weed killer. 76 of the 78 weeds in the world are destroyed by glyphosate. It also causes extensive damage to crop plants. So glyphosate has to be used very carefully. Transgenic crops (cotton, soybeans) have been created by introducing enzyme-producing genes from bacteria into crop plants. Glyphosate does not harm these transgenic plants. Therefore, glyphosate herbicides are being safely applied to transgenic crops.

Gene markers are used to detect whether recombinant DNA has changed after it has been introduced into a cell. R-plasmid is a widely used gene marker. It contains the tetracycline antibiotic resistance gene.

DNA probes are used to check whether the gene sequence is correct in a piece of DNA. DNA probes contain 20-200 nucleotides. It is used to evaluate the expression of recombinant DNA

Hereditary diseases are difficult to cure. Antithrombin-III from transgenic goat milk and III C12 esterase inhibitor drugs from transgenic rabbit milk have been produced by recombinant DNA technology. Antithrombin-III drugs are used in the treatment of human antithrombin deficiency and III C12 esterase inhibitor drugs in the treatment of human angioedema. Efforts are underway to eradicate hereditary diseases by discovering more drugs through this technology. Transgenic animals are used as bioreactors to produce drugs from their milk, blood and urine. This is called molecular farming. These medicines are used to cure many diseases.

The term Transgenic is composed of trans meaning transfer and genic meaning gene. Transgenic means genetically modified organism. An improved quality animal is created by taking a gene from one cell and adding it to another cell is called transgenic animal. Transgenic animals are developed for economic gain. Methods such as transformation, microinjection, electroporation, mediated gene transfer etc. are used to create transgenic animals.

1. Virus resistant plants: carpus, potato, tomato, watermelon, cucumber etc.
2. Pest resistant plants: carpus, potato, tobacco, rapeseed etc.
3. Weed Resistant Plants: Carpus, Potato, Tomato, Bhutra, Tobacco etc.
4. Protein storage plants: rice, soybean, sunflower etc.
5. More nutritious plants: Paddy, Wheat, Bhutra etc.
6. Transformed mature plants: Tomato.
7. Agglutinin plant: Bhutra.
8. Nematode resistant plants: Tobacco.

The word Transgenic is composed of trans meaning transfer and genic meaning gene. Transgenic means genetically modified organism. A plant of improved quality is created by taking a gene from one cell and adding it to another cell is called a transgenic plant. Transgenic crops are being cultivated commercially to increase their economic importance. Methods such as pollen mediated transformation, microinjection, electroporation, mediated gene transfer etc. are used to create transgenic plants.
Transgenic crops are grown in about 30 countries around the world. Transgenic plants have been developed in 60 higher plant species in the world. These plants are wheat, bhutra, tomato, tobacco, cotton, papaya, rye, sunflower, pear, grape etc. 40% of corn, 50% of cotton and 45% of soybeans grown in America are transgenic crops.