Some breeds of beef cattle have two color options, red and black, where the black version of the gene (B) is dominant over the red version (b). The different forms of the beef cattle color gene are called ___.

answer: a. a gene that causes a specific trait.

answer; 60-100; beats per minute

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: