Adult human bone:

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#Question id: 5015

#SCPH06 I Botany

 During which of the following largest mass extinction recorded in the history of life on Earth.

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#Question id: 14502

#SCPH01 Biochemistry

The chances of a person being alive who is now 35 years old, till he is 75 are 8 : 6 and of another person being alive now 40 years old till he is 80 are 4 : 5. The probability that at least one of these persons would die before completing 40 years hence is

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#Question id: 3262

#SCPH06 I Botany

In a population, the genotype frequencies are: f(A1A1)= 0.35; f(A1A2) = 0.30; f(A2A2) = 0.35; Which of the following statement is correct?

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#Question id: 758

#SCPH01 Biochemistry

Both miRNAs and one strand of siRNAs are bound by proteins to form a ribonucleoprotein complex called:

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#Question id: 14151

#SCPH01 Biochemistry

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.