Download App

Biotechnology — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology4 Marks
Question
What are transgenic plants? Explain with any two examples.
✓

Answer

The genetically engineered crop plants carrying desirable traits are called transgenic plants.
Examples of transgenic plants:

  1. Bt Cotton : Bt cotton is a transgenic plant. Bt toxin gene has been cloned and introduced in many plants to provide resistance to insects without the need of insecticides.
  2. Golden rice : It is a genetically engineered rice with higher beta carotene (provitamin A) content.
  3. Flavr savr tomato : It is developed by inhibiting synthesis of polygalactournonase by inserting antisense gene. This type of tomato has a longer shelf life.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following in detail :" from Biotechnology→Biotechnology — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Describe outbreeding devices which encourage cross pollination.
→
Succession of Plants.
→
Column A (Scientist)Column B (Theory)
(1) Munch(a) Proton transport theory
(2) Bohem(b) Pressure flow theory
(3) J. Pristley(c) Capillary theory
(4) Levitt(d) Root Pressure theory
→
Give scientific : Fall and rise in blood calcium stimulates secretion of parathyroid.
→
What is repolarization and depolarization ?
→
Disorders/Diseases/ Health conditionsRecombination protein (s)
Atherosclerosis
Platelet derived growth factor
Anaemia
Parturition
Blood clots
Diabetes
Haemophilia A
Haemophilia B		Platelet derived growth factor
(Factor VIII, Insulin, Relaxin, Factor IX, Erythropoietin, Tissue plasminogen activator
→
Give any two examples of biofortified transgenic crops.
→
What were the control measures taken by Delhi Government for combating air pollution ?
→
Lung cancer, Pituitary, Spleen, Skin cancer, Cancer of adipose tissue, lymph nodes, Adrenal, Bone tumour.
Column (A Type of cancer)Column B (Organs affected)
(1) Carcinoma————–
(2) Sarcoma————–
(3) Lymphoma————–
(4) Adenocarcinoma————–
→
How does prey species defend themselves against predators?
→