Blue light stimulated opening of stomata, closing of stomata is also takes place by many other such mutants and mechanisms such as,

a.) npq1 mutants leads to closing of stomata

b.) In high PPFD leads to conversion of violaxanthin to zeaxanthin which will  leads to closing of stomata

c.) Green light in the 500 to 600 nm region of the spectrum, abolishes the opening of stomata

d.) Mutant of phototropin 1 & 2 (PHOT1/PHOT2)  leads to closing of stomata

e.) Starch content in the guard cell decreases during closing of stomata at the end of the day

Which of the following given statements will be correct for closing of stomata?

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#Question id: 41382

#Unit 11. Bioinformatics

Two alignment methods produce different placements for a conserved amino acid. A third method uses an alignment library and checks whether the placement agrees with other alignment evidence. Identify the method.

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#Question id: 41383

#Unit 11. Bioinformatics

A multiple sequence alignment contains many unrelated or poorly aligned protein sequences. 

Which approach in the described DbClustal workflow can help evaluate the quality of the resulting alignment?

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#Question id: 41384

#Unit 11. Bioinformatics

Q. Consider the following statements about multiple sequence alignment (MSA).

1.MSA aligns three or more related sequences.

2.MSA can help identify conserved residues and regions.

3.MSA is useful for phylogenetic analysis.

4.MSA is useful only for DNA sequences, not protein sequences.

Which statements are correct?

TLS Online TPP Program

#Question id: 41385

#Unit 11. Bioinformatics

Q. Consider the following statements about the Sum-of-Pairs (SP) score.

Each alignment column is scored by considering pairs of residues.

For (n)sequences, each column contains (n(n-1)/2)possible sequence pairs.

The total SP score is obtained by adding the scores of all alignment columns.

SP scoring considers only identical residue pairs and ignores mismatches and gaps.

Which statements are correct?

TLS Online TPP Program

#Question id: 41386

#Unit 11. Bioinformatics

Q. Consider the following statements about BLOSUM62 in MSA.

1.BLOSUM62 provides substitution scores for amino-acid pairs.

2.Identical amino acids always receive the same score regardless of their identity.

3.A substitution between different amino acids can receive a positive or negative score.

4. BLOSUM62 is a nucleotide substitution matrix.

Which statements are correct?

TLS Online TPP Program

#Question id: 41387

#Unit 11. Bioinformatics

Q. An MSA contains five protein sequences. How many residue pairs are considered per column when calculating the SP score?