Parts of a Chromosome

Chromosomes are made up of two identical sister _____________.

• chloroplasts

• nuclei

• chromatids 

• gens

Tags

NGSS.HS-LS1-4

Sister Chromatids are...

• Exact copies of each other attached at the centromere

• Homologous copies of each other attached at the centromere

• Not copies at all, they are different, but they are attached at the centromere

• Different sizes with different genes, not attached.

Structure A refers to the _____.

• chromatid

• chromosome

• centromere

The structure shown in the diagram is a _____________?

• chromatid

• chromosome

• centromere

• DNA

What is the central region of a chromosome where the two chromatids are joined called?

• Centromere

• Telomere

• Chromatid

• Nucleosome

Which part of the chromosome protects the ends from deterioration?

• Centromere

• Telomere

• Chromatid

• Histone

What are the repeating units of DNA wrapped around histone proteins called?

• Nucleosomes

• Chromatids

• Centromeres

• Telomeres

Which of the following is NOT a part of a chromosome?

• Centromere

• Telomere

• Ribosome

• Chromatid

What is the function of telomeres in chromosomes?

• To join sister chromatids

• To protect chromosome ends

• To facilitate DNA replication

• To form the chromosome's core

Which structure is responsible for the movement of chromosomes during cell division?

• Spindle fibers

• Centromere

• Telomere

• Nucleosome