Answer: Long-range transcriptional regulation of gene clusters (e.g., globin gene cluster).
- A Mainly the localized pattern of DNA methylation occurring across a single gene cluster
- B Long-range transcriptional regulation of gene clusters (e.g., globin gene cluster)
- C Mainly the removal of introns from pre-mRNA carried out by the spliceosome complex
- D Mainly the recruitment of ribosomes needed to begin translation of a mature mRNA
Correct answer: B. Long-range transcriptional regulation of gene clusters (e.g., globin gene cluster)
Explanation: LCR: regulatory element that controls chromatin accessibility and transcription of entire gene clusters over long distances (10s of kb). e.g., beta-globin LCR.
Punnett square for a monohybrid cross between two heterozygous (Tt) parents, showing the 3:1 phenotypic ratio predicted by Mendel's Law of Segregation.
Concept context
Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.
Read the full Principles of Inheritance and Variation notes →