briannal0821 briannal0821 04-02-2022 Biology contestada 5. The structures labeled B in the picture above are called... a. centromeres b. centrioles c. sister chromatids d. spindles 6. The structurc labeled A in the same diagram above as in question 5 is called the... a. centromere b. centriole c. sister chromatid d. spindle