A defective protein can be produced by a cell when a mutation has which of the following effects? Messenger RNA is prevented from being made.
It causes cells to divide in an uneven way.
O An additional mRNA strand is caused to form.
The amino acid sequence coded by the gene is altered.

the awnser is d i think

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: