Which is a defining characteristic that all protobionts had in common?

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#Question id: 4136

#SCPH01 Biochemistry

Which of the following is(are) true for protein synthesis in eukaryotes?

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#Question id: 10507

#SCPH05 I Biotechnology

Rhizobacteria function as

 a) Nitrogen fixation

 b) depositing pathogens directly into the vascular system,

 c) producing antibiotics and antifungal agents for inhibiting soil pathogens

 d) herbivore sensors by sending electrical or chemical signals to surrounding cells

 Which one of the following combination is correct?

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#Question id: 376

#SCPH05 I Biotechnology

Phosphoric acid is tribasic, with pKa of 2.14, 6.86 and 12.4. The ionic form that predominates at pH 3.2 is

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#Question id: 14138

#I Life Science/ Life Sciences Group – I-V

BLAST uses heuristics to align a query sequence with all sequences in a database. 

Reason(R): BLASTX uses protein sequences as queries to search against a protein sequence database.

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#Question id: 672

#SCPH05 I Biotechnology

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?