What is an allele? A. The gene for a specific trait.

B. One of 2 copies of a gene.

C. The same thing as a gene​

Which of the following correctly describes the appearance of muscle tissue found in the heart? (2 points) single-nucleus, non-striated, short cells single-nucleus, striated, branching cells multinucleated, non-striated, branching cells multinucleated, striated, long threadlike cells