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TLS Online TPP Program

#Question id: 14159

Which of the following statement is not a benefit of FASTA over BLAST?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. FASTA scans smaller window sizes.
  2. FASTA gives more sensitive results than BLAST
  3. FASTA is usually slower than BLAST
  4. FASTA identifies identical matching words using the hashing procedure while BLAST uses a substitution matrix to find matching words.
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TLS Online TPP Program

#Question id: 59

#Section 2: General Biology

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 60

#Section 2: General Biology

Which of the following is true for the reaction?

3H2 + N2   2NH3
TLS Online TPP Program

#Question id: 61

#Section 2: General Biology

Which of the following correctly describes chemical equilibrium?
TLS Online TPP Program

#Question id: 62

#Section 2: General Biology

We can represent atoms by listing the number of protons, neutrons, and electrons—for example, 2p+, 2n0, 2e- for helium. Which of the following represents the 18O isotope of oxygen?
TLS Online TPP Program

#Question id: 63

#Section 2: General Biology

The two molecules shown in the figures are best described as ________.
TLS Online TPP Program

#Question id: 65

#Section 2: General Biology

Identify which of the following pair is enantiomers, diastereomers or meso compounds.