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: 17274

#SCPH05 I Biotechnology

which of the following statement is incorrect about PSI-BLAST?

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#Question id: 4822

#SCPH28 | Zoology

In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?

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#Question id: 14898

#SCPH05 I Biotechnology

The advantage of axial flow impellers over radial flow impellers is that axial flow impellers

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#Question id: 6982

#SCPH06 I Botany

Which of the following genes control the final structures of appendages from each segment?

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#Question id: 3694

#SCPH28 | Zoology

 In eukaryotes, DNA polymerase alpha is a multi-subunit enzyme with different functions. They include: