The following question refers to the following phylogenetic trees. Which tree depicts the microsporidians as a sister group of the ascomycetes?

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#Question id: 8951

#SCPH28 | Zoology

An animal that swims rapidly in search of prey that it captures using visual senses concentrated at its anterior end is likely to be

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#Question id: 5700

#SCPH06 I Botany

During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that

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#Question id: 112

#SCPH05 I Biotechnology

The major groups of lipids can be separated by silicic acid column chromatography by eluting with

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#Question id: 15631

#SCPH01 Biochemistry

The most widely used progressive alignment program is_____

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#Question id: 15652

#SCPH01 Biochemistry

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. You have isolated a mutation that causes constitutive melibiase activity, which you designate MelA–. P1 phage mapping experiments using a Tn5 insertion linked to Mel1 show that MelA– is not linked to Mel1. Moreover you find that when an amber suppressor is introduced into a MelA– mutant, normal melibiase regulation is restored. Classify the MelA– mutation in terms of its basic genetic properties,