In eukaryotes, translation occurs in the cytoplasm following transcription. The mRNA, after processing, binds to ribosomes, where it is decoded by transfer RNA (tRNA) molecules to assemble amino acids into a polypeptide chain. This process requires initiation, elongation, and termination factors for protein synthesis. This is an MCQ on Translation […]
In prokaryotes, translation begins while transcription is ongoing. The mRNA, produced by RNA polymerase, directly binds to ribosomes in the cytoplasm. Ribosomes then read the mRNA sequence and synthesize proteins by recruiting transfer RNA (tRNA) molecules that bring specific amino acids corresponding to the mRNA codons. This is an MCQ […]
In eukaryotes, transcription involves RNA polymerase binding to the promoter region on DNA, followed by synthesis of a complementary mRNA strand. This pre-mRNA undergoes processing, including splicing and addition of a poly-A tail and a 5′ cap, before being exported to the cytoplasm for translation. This is an MCQ on […]
In prokaryotes, transcription is the process where RNA polymerase binds to the promoter region of DNA and synthesizes a complementary mRNA strand using one of the DNA strands as a template. This mRNA carries genetic information from DNA and serves as a template for protein synthesis. This is an MCQ […]
Histone proteins are highly alkaline proteins found in eukaryotic cell nuclei. They form the core around which DNA wraps to form nucleosomes, the basic units of chromatin. Histones play crucial roles in DNA packaging, gene regulation, and epigenetic modifications, influencing gene expression and cellular processes within the nucleus. This is […]