A teenaged boy with numerous nosebleeds was referred to a physician for evaluation prior to a minor surgery. His prothrombin time (PT) was 11 sec (11–15 sec normal), partial thromboplastin time (PTT) was 58 sec (25–40 sec normal), and bleeding time was 6.5 min (2–7 min normal). Which of the following is most likely abnormal in this young man?

TLS Online TPP Program

#Question id: 19382

#Unit 12. Applied Biology

A plant can be made glyphosate resistant by

TLS Online TPP Program

#Question id: 14948

#Unit 6. System Physiology – Plant

Cellulose microfibrils have an ordered structure and are synthesized at the plasma membrane, given characteristics of microfibrils;

a) Each microfibril is composed of an estimated 18 parallel chains of (1,4)-linked β-D-glucose chains tightly bonded to each other to form a crystalline microfibril

b) Microfibrils have hydrophilic surfaces, populated by polar –OH groups extending from the plane of the sugar rings

c) Microfibrils have hydrophobic surfaces, populated by nonpolar C–H groups populating the sides of stacked glucose chains

 d) microfibril important for enzymatic attack by microbial cellulases, which dock onto the hydrophobic surface and remove one glucan chain at a time

Which of the following from given characteristics of microfibrils is incorrect?

TLS Online TPP Program

#Question id: 2510

#Unit 2. Cellular Organization

Which of the following cytoskeletal components is not found in all eukaryotic cells?

TLS Online TPP Program

#Question id: 15168

#Unit 2. Cellular Organization

Cyanobacteria comprises a large and morphologically heterogenous group of

TLS Online TPP Program

#Question id: 16476

#Unit 12. Applied Biology

Which type of cultures can be used for cells which do not have cell to cell communication