Answer: Capping (5 prime), poly-A tail (3 prime), and splicing out introns.
- A Mainly the enzymatic addition of a 5 prime methylguanosine cap structure
- B Capping (5 prime), poly-A tail (3 prime), and splicing out introns
- C Mainly the removal of introns from the transcript by the spliceosome complex
- D Mainly the chemical methylation of cytosine bases within the DNA template
Correct answer: B. Capping (5 prime), poly-A tail (3 prime), and splicing out introns
Explanation: Pre-mRNA processing: 5-prime methyl guanosine cap + poly-A tail (added at 3-prime end) + splicing out introns by spliceosomes.
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 →