The region labeled A in Figure 9-1 is called the

(1 point)
Responses

centromere.
centromere.

centriole.
centriole.

sister chromatid.
sister chromatid.

spindle.

1 answer

Without the ability to view Figure 9-1, I can't provide a specific answer. However, I can help clarify what each term refers to:

  • Centromere: The region of a chromosome where two sister chromatids are joined and is essential for the proper segregation of chromosomes during cell division.
  • Centriole: A structure that helps organize microtubules during cell division, part of the centrosome.
  • Sister Chromatid: One of the two identical halves of a duplicated chromosome, which are joined together at the centromere.
  • Spindle: Refers to the framework of microtubules that segregate chromosomes during cell division.

If you can provide additional context or details about the figure, I could help you determine which term is most appropriate.