The ability to roll one's tongue (turn up the sides) is controlled by a dominant allele. if two heterozygous parents have a child, what are the chances an offspring will be able to roll their tongues?

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explanation:

is the dgjofgkg. huukkg u

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.