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.

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#Question id: 8923

#SCPH28 | Zoology

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

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#Question id: 10282

#SCPH05 I Biotechnology

In the glycolytic reaction one of the step is catalyzed by ATP-dependent phosphofructokinase is essentially irreversible, at the same step which one of the following enzyme used in gluconeogenesis, both of the enzymes are ATP dependent.

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#Question id: 4944

#SCPH06 I Botany

What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?

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#Question id: 18622

#SCPH06 I Botany

Variants of PCR has been devised for mutational analysis

a) AS PCR

b) Site directed mutagenesis

c) Overlap extension PCR

d) Mega primer PCR

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#Question id: 1567

#SCPH28 | Zoology

Which of the following cell types are responsible for initiating a secondary immune response?