TLS Online TPP Program

#Question id: 15957


The technique of somatic hybridization involves the following steps; 

#Unit 12. Applied Biology
  1. Selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties→ Isolation of protoplasts
  2. Culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties→ Isolation of protoplasts→ Selection of hybrid cells
  3. Isolation of protoplasts→ fusion of the protoplasts of desired species/varieties→ selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants
  4. Isolation of protoplasts→ Selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties
More Questions
TLS Online TPP Program

#Question id: 23256

#Unit 13. Methods in Biology

Which chromosome pair has same centromeric sequence?

TLS Online TPP Program

#Question id: 13081

#Unit 13. Methods in Biology

Correct statements about RAPD’s
A. RAPD polymorphism is detected by using oligonucleotides usually more than 10 bases long of random sequences as primers in a reaction.
B. In a strain which has in genomic DNA sequences complementary to the primer oligonucleotide, PCR products will be detected in the gel,
C. Typical RAPD markers show limited variation between parents, especially in naturally inbreeding species.
D. RAPDs are more sensitive than RFLPs to experimental conditions making them more difficult to be consistent and reproducible.

TLS Online TPP Program

#Question id: 30086

#Unit 2. Cellular Organization

Which one of the following is the correct match between below mentioned options?


TLS Online TPP Program

#Question id: 23976

#Unit 8. Inheritance Biology

Lethality caused due to deletion in 
a) Repeated gene sequence
b) Heterozygous gene
c) Homozygous gene
d) Any essential genes

TLS Online TPP Program

#Question id: 12641

#Unit 6. System Physiology – Plant

 Among the diverse components of plant defense arsenals are proteins that interfere with herbivore digestion, Given some defense compound of plants in column I with its given action in column II

Column I

column II

I)  α-amylase inhibitors

a) Antidigestive proteins, block the action of herbivore proteolytic enzymes. After entering the herbivore’s digestive tract, they hinder protein digestion by binding tightly and specifically to the active site of protein-hydrolyzing enzymes such as trypsin and chymotrypsin

II) Lectins

b) block the action of the starch-digesting enzyme

III) proteinase inhibitors

c) A defensive proteins that bind to carbohydrates or carbohydrate-containing proteins. After being ingested by an herbivore, bind to the epithelial cells lining the digestive tract and interfere with nutrient absorption

Correctly match the defence compound withits action on herbivore;