Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Transgenic plants are 

  1. Plants having no gene

  2. Plants in which gene are present in an opposite or transposition

  3. Plants in which genes have no function to perform

  4. Plants in which genes of another organism have been implanted
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transgenic plants are plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with new characteristics.They are identified as a class of genetically modified organisms. Transgenic plants can be created by inserting genes of other organisms. 

So, the correct answer is 'plants in which genes of another organisms have been implanted'

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Bioremediation is

  1. Genetically engineered organisms capable of producing pharmaceuticals

  2. Biological control

  3. Biopurification of environment

  4. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bioremediation is the process of treating the contaminated water, soil and subsurface material by altering the environmental conditions in which the growth of microorganisms is stimulated.

So the correct option is C.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Genetic engineering has been successfully used for producing

  1. Transgenic models for studying new treatments for certain cardiac diseases

  2. Transgenic cow, Rosie, which produces high fat milk for making ghee

  3. Animals like bulls for farm work as they have super power

  4. Transgenic mice for testing safety of polio vaccine before use in humans
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transgenic mice are widely used as models to test the safety of vaccines, such as the polio vaccine, before they are administered to humans, reducing the need for using monkeys.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which technique made it possible to genetically engineer living organisms ___________________.

  1. Recombinant DNA techniques

  2. Heavy isotope labelling

  3. X-ray diffraction

  4. Hybridisation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recombinant DNA technology is the fundamental technique that allows scientists to cut, join, and insert DNA from one organism into another, enabling genetic engineering.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which transgenic animal has been given human genes for organ transplantation into humans without risk of rejection?

  1. Cow

  2. Sheep

  3. Goat

  4. Pig
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pigs are often researched as potential organ donors for humans (xenotransplantation) because their organ sizes are similar to humans, and they can be genetically modified to reduce immune rejection.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Transgenic animals are generally produced for all of the following needs except

  1. Testing of chemical safety

  2. Testing of vaccine safety

  3. Stimulation of pathogenicity

  4. Production of pharmacologically important proteins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transgenic animals are created to study diseases, test safety, and produce proteins, not to stimulate or create new pathogens.