In the __________, Only a Portion of the Sun Is

question 22

Short Answer

In the __________, only a portion of the Sun is eclipsed.

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Definitions:

Inactive X Chromosome

The inactive X chromosome is one of the two X chromosomes in female mammals that is condensed and transcriptionally inactive, a process known as X-chromosome inactivation.

Histones

Proteins that package and order the DNA into structural units called nucleosomes.

Transcriptionally Active

Refers to genes that are currently being expressed, with their DNA being transcribed into messenger RNA.

Euchromatin

A loosely coiled chromatin that is generally capable of transcription. Compare with heterochromatin.