Which of the following statement is true?

A) PAM matrices are derived from an evolutionary model whereas the BLOSUM matrices consist of entirely direct observations. 

B) Because of BLOSUM matrices have less evolutionary meaning that is why the PAM matrices are used most often for reconstructing phylogenetic trees.

C) BLOSUM matrices are entirely derived from local sequence alignments of conserved sequence blocks, whereas the PAM matrix is based on the global alignment of full-length sequences.

D) BLOSUM matrices are more advantageous in searching databases and finding conserved domains in proteins.

#Question id: 3021

#SCPH05 I Biotechnology

The lag phase of the bacterial growth curve is marked by

#Question id: 2343

#SCPH28 | Zoology

What advantage would a plant cell have over an animal cell if both were placed in pure water

#Question id: 10230

#SCPH06 I Botany

#Question id: 10798

#SCPH05 I Biotechnology

Two other major groups of flavonoids found in flowers and leaves of all green plants. The function of these two flavonoids in plants are____

a) protect plants against being eaten by herbivores and against being infected by microbial pathogens

b) Protect cells from excessive UV-B radiation (280–320 nm) because they accumulate in the epidermal layers of leaves and stems and absorb light strongly in the UV-B region       

c) flavones and flavonols secreted into the soil by legume roots mediate the interaction of legumes and nitrogen-fixing symbionts

d) They are are coloured terpenoid compounds that also serve as accessory pigments in photosynthesis    

Which of the following combination from the above statements is correct?

#Question id: 10290

#SCPH05 I Biotechnology

In glycolysis, perform succesfully ten step reaction, the conversion of 1 molecules of glucose 6-phosphate to 2 molecules of Pyruvate. What is the net gain of overall reaction?