Final answer:
The noncoding RNA molecules involved in chromatin structure include heterochromatin and euchromatin. The noncoding RNA molecules involved in transcription include mRNA, tRNA, and rRNA.
Step-by-step explanation:
Chromatin Structure:
- Heterochromatin: These ncRNA molecules are involved in condensing and silencing genes that are inactive in transcription.
- Euchromatin: These ncRNA molecules are involved in maintaining a more dispersed and accessible chromatin structure for active genes.
Transcription:
- mRNA (messenger RNA): This ncRNA molecule is transcribed from DNA and serves as the template for protein synthesis.
- tRNA (transfer RNA): This ncRNA molecule carries amino acids to the ribosomes during protein synthesis.
- rRNA (ribosomal RNA): This ncRNA molecule is a major component of ribosomes, which are responsible for protein synthesis.