Giardia intestinalis can cause disease in several different mammalian species, including humans. Giardia organisms (G. intestinalis) that infect humans are similar morphologically to those that infect other mammals, thus they have been considered a single species. However, G. intestinalis has been divided into different subgroups based on their host and a few other characteristics. In 1999, a DNA sequence comparison study tested the hypothesis that these subgroups actually constitute different species. The following phylogenetic tree was constructed from the sequence comparison of rRNA from several subgroups of G. intestinalis and a few other morphologically distinct species of Giardia. The researchers concluded that the subgroups of Giardia are sufficiently different from one another genetically that they could be considered different species.

According to the phylogenetic tree in the figure above, G. intestinalis constitutes a ________ group.

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#Question id: 18683

#SCPH01 Biochemistry

Eukaryotic mRNA can be separated by using 

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#Question id: 18684

#SCPH01 Biochemistry

Amplified product of PCR can be calculated by using

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#Question id: 18685

#SCPH01 Biochemistry

Match the items in Group 1 with an appropriate description in Group 2 

Group I                                      Group 2 

P. UPGMA                             1. Protein sequence database

Q. CLUSTALW                       2. Phylogenetic Analysis

R. SWISS-PROT                    3. 3-D structure visualization

S. RasMol                              4. Multiple sequence alignment

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#Question id: 18685

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

Match the items in Group 1 with an appropriate description in Group 2 

Group I                                      Group 2 

P. UPGMA                             1. Protein sequence database

Q. CLUSTALW                       2. Phylogenetic Analysis

R. SWISS-PROT                    3. 3-D structure visualization

S. RasMol                              4. Multiple sequence alignment

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#Question id: 18685

#SCPH05 I Biotechnology

Match the items in Group 1 with an appropriate description in Group 2 

Group I                                      Group 2 

P. UPGMA                             1. Protein sequence database

Q. CLUSTALW                       2. Phylogenetic Analysis

R. SWISS-PROT                    3. 3-D structure visualization

S. RasMol                              4. Multiple sequence alignment

TLS Online TPP Program

#Question id: 18686

#SCPH01 Biochemistry

Homology modeling may be distinguished from ab initio prediction because: