Q: What genetic unit is formed when the dna double helix wraps around proteins and tightly coils a number of times?


Read this paragraph and choose the correct option from the provided answers:

(left) The DNA double helix wraps around proteins (2) and tightly coils a number of times to form a chromosome (5). This figure shows the complexity of the coiling process. The red dot shows the location of the centromere, where the microtubules attach during mitosis and meiosis. (right) A representation of a condensed eukaryotic chromosome, as seen after the DNA has been copied. The chromosome is made of two identical, or sister, chromatids held together by a centromere.

 Choices:

- atom

- gene

- neutron

- chromosome


A:
chromosome