Chromosome Structure

Front

What are nucleosomes?

Back

Nucleosomes are structures formed when a DNA strand wraps tightly around a histone protein, helping to package DNA into a compact form.

Front

What is a chromatid?

Back

Each identical side of a chromosome is called a chromatid.

Front

True or False: A tightly wound bundle of DNA is a chromosome.

Back

True

Front

What is the kinetochore?

Back

The kinetochore is the protein structure on a chromosome where spindle fibers attach during cell division.

Front

What are histones?

Back

Histones are individual proteins that DNA tightly winds around to form nucleosomes.

Front

What is the role of the centromere?

Back

The centromere is the region of a chromosome where the two sister chromatids are joined and where the kinetochore forms.

Front

Define chromatin.

Back

Chromatin is the complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells.

Front

What is the function of spindle fibers?

Back

Spindle fibers are responsible for separating chromosomes during cell division.

Front

Explain the structure of a chromosome.

Back

A chromosome consists of two sister chromatids joined at the centromere, with DNA wrapped around histone proteins.

Front

What happens during the process of DNA replication?

Back

During DNA replication, the DNA molecule unwinds and each strand serves as a template for the formation of a new complementary strand.