Which of the following statements is INCORRECT about eukaryotic chromosomes?
A) The number of chromosomes varies from one species to another.
B) All eukaryotes have the same system of autosomes and sex chromosomes.
C) A chromosome consists of DNA associated with histone proteins.
D) After duplication, all paired chromosomes are attached at the centromere.
E) After duplication, each chromosome consists of two sister chromatids.

Question

Quizplus · Accepted Answer

Different eukaryotic species may have different systems of autosomes and sex chromosomes. For example, humans have 22 pairs of autosomes and 1 pair of sex chromosomes (XX for females and XY for males), while fruit flies have 3 pairs of autosomes and 1 pair of sex chromosomes (XX for females and XY for males).

Which of the Following Statements Is INCORRECT About Eukaryotic Chromosomes