sexta-feira, 27 de março de 2015

QUESTIONS MO640 27th



Which of the statements is wrong, about the questions that arise in molecular evolution in which marcov model respond?
  
  1. Correcting for multiple substitutions
  2. Simulating sequence evolution
  3. Estimating rates of evolution
  4. Substitution scoring matrices 
  5. The rate substitution, alpha is an explicit parameter for the model  
a) 1 and 2 are incorrect
b) 2, 3 and 4 are incorrect
c) only 5 is incorrect
d) 4 and 5 are incorrect
e) all are incorrect

by Shagali Huanca Vargas

sexta-feira, 20 de março de 2015

MO640 - Multiple-choice question

Consider the following sequences: s = GAATC  and   t = GGATC. If we apply the basic algorithm of global alignment for these sequences with match weights = 1, mismatch = -1 and gap = -2, what are the values of the last row and the last column of the matrix?

a. Row: 10,-7,-4,--3, 0, 3 ; Column: -10, -7, -6, -3, 0, 3
b. Row: -10, -1,-7,-3,-2,-3 ; Column: -10, -7, -5,-3, 1,-1
c. Row: -10,-7,-4,-3, 0,-3 ; Column: -10, -5, -3, 4, -2, 3
d. Row: -10, -7, -4, -3, 0, 3 ; Column: -10, -7, -6,-3, -1,-3
e. NDA
 
By Shagali Huanca Vargas.

sexta-feira, 13 de março de 2015

QUESTIONS FOR MO640-A 12th

What is the best phylogeny for the following array states characteristics?

 (Consider that named edges mean that the cited characteristic, changed state)

a. 


b. 

c.

d.


e. None of the above

Original idea of Felipe Holanda, translated by Shagali Huanca Vargas

QUESTIONS FOR MO640-A

1. In the chemical reactions of cell, there are one element  which is used in greater amount than the others elements:

a) water
b) ions
c) nucleic acids
d) sugars
e) proteins

by: Shagali Huanca Vargas