____________________ (I

question 45

Short Answer

____________________ (i.e., soft spots) are the openings between the skull's bones in the suture line.

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Definitions:

Heterochromatin

A tightly packed form of DNA, which is transcriptionally inactive, aiding in maintaining the DNA's structural integrity.

Euchromatin

A lightly packed form of chromatin (DNA, RNA, and protein complex) that is enriched in gene concentration and is active in transcription.

Barr Bodies

Inactivated X chromosomes found in the nuclei of cells in female organisms, visible as a dense mass, and a key component in dosage compensation.

Promoters

DNA sequences located near the beginning of a gene that signal RNA polymerase where to start transcription.