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TLS Online TPP Program

#Question id: 31883

BLAST is popular tool to search for sequences similar to a given sequence (query) against a given database, and it often sorts resulting matches according to the e -value. Which one of the following statements is INCORRECT with respect to this e -value?

#Unit 11. Bioinformatics
  1. Its value depends on the length of the query sequence
  2. Its value depends on the size of the database
  3. It reduces exponentially as the pairwise alignment score increases
  4. If the e -value approaches zero, the probability that the alignment occurred by chance is greater 
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TLS Online TPP Program

#Question id: 2961

#Unit 2. Cellular Organization

What is the best evidence that anaphase chromosomes are not pulled to the poles like fish on a line?
TLS Online TPP Program

#Question id: 2962

#Unit 2. Cellular Organization

Which of the following experimental observations (some real, some contrived) would not be consistent with our current understanding of cytokinesis?
TLS Online TPP Program

#Question id: 2963

#Unit 2. Cellular Organization

Eukaryotic chromosomes are composed of which of the following macromolecules?
TLS Online TPP Program

#Question id: 2964

#Unit 2. Cellular Organization

Starting with a fertilized egg (zygote), a series of six cell divisions would produce an early embryo with how many cells?
TLS Online TPP Program

#Question id: 2965

#Unit 2. Cellular Organization

In a diploid cell with 5 chromosome pairs (2n = 10), how many centromeres will be found in a nucleus at G2 of the cell division cycle?
TLS Online TPP Program

#Question id: 2966

#Unit 2. Cellular Organization

Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that have 1 1/2 times more DNA than G1 phase cells. What is the most likely part of the cell cycle from which these cells were isolated?