Place the five steps in building a phylogenetic tree in the proper order, from first construction step to last.1. The nucleotide or amino acid sequence must be aligned.2. The alignment must be examined for a phylogenetic signal.3. Choose which tree-building method to use (common ones are phenetic or cladistic).4. Application of a selected method, using computer analysis.5. Manual examination of the tree.

Fill in the blank(s) with the appropriate word(s).


5, 4, 3, 1, 2

Biology & Microbiology

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_______________ are chemical substances produced in small quantities in one part of an organism and then transported to another part of the organism, where they bring about physiological responses.  

A.  Glycoproteins B.  Photosynthates C.  Hormones D.  Heat shock proteins E.  Pulvini

Biology & Microbiology

In noncompetitive feedback inhibition

a. the products of the reaction block the active site of the enzyme. b. the products of the reaction at the end of the pathway bind to a site other than the active site of an enzyme at or near the beginning of the pathway and block enzyme activity indirectly. c. the substrate and cofactors compete for the active site. d. the inhibitor binds to and directly blocks the active site of the enzyme. e. enzyme activity is controlled by the reversible binding of a regulatory molecule.

Biology & Microbiology

The process of encoding genetic information into a functional part of the cell is called ________

a. translation b. mitosis c. gene expression d. replication e. transcription

Biology & Microbiology

Asexual reproduction differs from sexual reproduction in that

What will be an ideal response?

Biology & Microbiology