TLS Online TPP Program

#Question id: 370


Which of the following statements is true about buffer solutions?

#SCPH05 I Biotechnology
  1. They maintain a constant pH of 7.

  2. They maintain a constant pH when acids are added to them but not when bases are added to them.

  3. They fluctuate in pH when either acids or bases are added to them.

  4. They maintain a relatively constant pH when either acids or bases are added to them.

More Questions
TLS Online TPP Program

#Question id: 12753

#SCPH06 I Botany

Property of CTAB to precipitate plant DNA is because of presence of --------- in the DNA?

TLS Online TPP Program

#Question id: 2943

#SCPH05 I Biotechnology

Which of the following is NOT a mechanism by which G1/S cyclin-CDKs ensure progression through the cell cycle?

TLS Online TPP Program

#Question id: 11147

#I Life Science/ Life Sciences Group – I-V

The concentrations of ions are very different inside and outside a nerve cell due to ________.

TLS Online TPP Program

#Question id: 22957

#SCPH01 Biochemistry

floral organ development is controlled by overlapping expressions of A class , B class and C class genes in different whorls. In an Arabidopsis mutant, the floral whorls had following pattern:
Sepal àSepal àcarpel àcarpel 
Mutation in which one of the following class of gene causes above pattern.  

TLS Online TPP Program

#Question id: 2972

#I Life Science/ Life Sciences Group – I-V

Match the following attachment (Column I) with definition(Column II).

Column I

Column II

A. Monotelic Attachment

I. When sister kinetochores attach to microtubules emanating from opposite spindle poles, they are stably attached.

B. Syntelic Attachment

II. When one kinetochore attaches to microtubules emanating from two opposite spindle poles.

C. Amphitelic Attachment

III. When both sister kinetochores attach to microtubules emanating from the same spindle pole.

D. Merotelic Attachment

IV. When only one of the two sister kinetochores attaches to microtubules.

Which of the following is correct?