Biology Test 31...

Assertion (A): Transgenic animals are crucial for producing biological products like human protein (α-1-antitrypsin) used in treating diseases.

Reason (R): Transgenic animals can express specific human proteins in their milk, which can be harvested and purified for medical use.

Assertion (A): Gene therapy involves the insertion of normal genes into an individual's cells to treat or prevent disease.

Reason (R): Gene therapy can permanently cure genetic disorders by replacing or repairing the faulty genes in patients.

Assertion (A): Bt crops are genetically modified to produce an insecticidal protein derived from Bacillus thuringiensis.

Reason (R): Bt crops require more chemical pesticides than non-GM crops to remain pest-free.

Assertion (A): Somatic hybridisation involves the fusion of protoplasts from two different plant species.

Reason (R): Somatic hybridisation aims to combine desirable traits from two different plants into one.

What is the principle of segregation?

What is a test cross used to determine?

Which condition is an example of a sex-linked disorder?

What is the role of Bt toxin in genetically modified (GM) crops?

Assertion (A): PCR (Polymerase Chain Reaction) is used to amplify small segments of DNA.

Reason (R): PCR enables the early detection of diseases by identifying the genetic material of pathogens.

Assertion (A): Genetically modified crops can help reduce the reliance on chemical pesticides.

Reason (R): GM crops are engineered to have built-in resistance to pests and diseases.