Eukaryotic chromosomes tend to be much larger than prokaryotic chromosomes. In order to package these chromosomes into the nucleus, which family of proteins are used by the cell?

His tones
RNA polymerases
Transcription factors
DNA polymerases

The family of proteins used by the cell to package eukaryotic chromosomes into the nucleus are called histones. Histones are highly basic proteins that help in organizing and compacting DNA. They serve as spools around which the DNA is wrapped to form nucleosomes, which further condense to form chromatin fibers.

In order to package the much larger eukaryotic chromosomes into the nucleus, the cell uses a family of proteins called "histones."

Now, let me explain how we can arrive at this answer. The question is asking about the proteins that are used by the cell to package eukaryotic chromosomes into the nucleus. To find the answer, we need to understand the structure of eukaryotic chromosomes and the process of packaging.

Eukaryotic chromosomes are made up of DNA molecules that are tightly wrapped around proteins called histones. These DNA-histone complexes are collectively referred to as nucleosomes. The nucleosomes further coil and fold to form compact structures known as chromatin. This tightly packed chromatin is what allows the long eukaryotic chromosomes to fit into the nucleus.

Based on this information, we can conclude that the answer to the question is "histones." Histones are a family of proteins that play a crucial role in DNA packaging and chromosome organization in eukaryotic cells.

Therefore, the correct answer is "histones."

In order to package eukaryotic chromosomes into the nucleus, the cell uses a family of proteins called histones. Histones are proteins that form complexes with DNA to create a structure called chromatin, which allows the chromosomes to condense and fit into the nucleus.