The basic assumption of the UPGMA method is that all taxa evolve at a constant rate and that they are equally distant from the root, implying that a molecular clock is in effect.

The basic assumption of the UPGMA method is that all taxa evolve at a

1.	The basic assumption of the UPGMA method is that all taxa evolve at a constant rate and that they are equally distant from the root, implying that a molecular clock is in effect.
A.	True
B.	False
Answer» B. False

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Minimum evolution (ME) constructs a tree with a similar procedure, but uses a different optimality criterion that finds a tree among all possible trees with a minimum overall branch length. The optimality criterion relies on the formula S = ∑bi where bi is the (i)th branch length.
Which of the following is untrue about the Fitch–Margoliash?
Corrects for unequal evolutionary rates between sequences by using a conversion step. This conversion requires the calculations of “r-values” and “transformed r-values” using the following formula ______
WHICH_OF_THE_FOLLOWING_IS_UNTRUE_ABOUT_THE_FITCH‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬®MARGOLIASH??$#
Minimum_evolution_(ME)_constructs_a_tree_with_a_similar_procedure,_but_uses_a_different_optimality_criterion_that_finds_a_tree_among_all_possible_trees_with_a_minimum_overall_branch_length._The_optimality_criterion_relies_on_the_formula_S_=_‚Äö√Ñ√∂‚àö‚Ä†‚àö¬¥bi_where_bi_is_the_(i)th_branch_length.$#
Which of the following is untrue about the Optimality-Based Methods?
The tree construction process is somewhat similar to that used UPGMA.
A generalized expression of the r-value is ri calculated based on the following formula _______
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In the Neighbor Joining step, The UPGMA method uses unweighted distances and assumes that all taxa have constant evolutionary rates.

The basic assumption of the UPGMA method is that all taxa evolve at a constant rate and that they are equally distant from the root, implying that a molecular clock is in effect.

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