Plant height of wild Solanum nigrum is controlled by polygene. A pure line plant with 60 cm height was cross to pure line plant having 20 cm height .All F1 plant having uniform height 40 cm. F1 plant was allowed to self-fertilization to produced 4/64 proportional of F2 plant having height 20 cm . What is number of polygene governing plant height?

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#Question id: 346

#SCPH06 I Botany

The partial negative charge in a molecule of water occurs because ________.

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#Question id: 4154

#SCPH06 I Botany

How many possible codons (of normal size) are possible using the bases found in DNA?

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#Question id: 3294

#SCPH06 I Botany

Which one of these processes describes bottleneck effect?

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#Question id: 14821

#SCPH06 I Botany

 Measles that damages the body defenses and is frequently complicated by secondary infections are primarily 

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#Question id: 14151

#SCPH05 I Biotechnology

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.