Question

1. Draw and label a representation of each of the processes below. Transcription RNA Processing- Translation-

Answer 1

TRANSCRIPTION

• Transcription is the first of several steps of DNA based gene expression in which a particular segment of DNA is copied to RNA by the enzme RNA polymerase.
• there are three stages in transcription ,initiation ,elongaton,and termnation.

RNA polymerase DNA is rewound Coding strand DNA is unwound Template strand Matching nucleotide is added RNA strand created NTPs RNA DNA hybrid region DNA primase RNA primer DNA ligase DNA Polymerase (Pola), 3 Lagging strand TUN HRANA 3 பால 5 Topoisomerase Okazaki fragment 5 Leading strand DNA Polymerase (Pols) Helicase Single strand, Binding proteins 3'

RNA PROCESSING

• RNA processing in which a newly made precursor messenger RNA (pre-mRNA) transcript is transformed into a mature messenger RNA (mRNA).
• During splicing, introns (Non-coding regions) are removed and exons (Coding Regions) are joined together.

TRANSLATION

EXONS 5 G AAAA.34 -INTRONS SPLICING I AAAA 3 MATURE mRNA

• translation is the process in which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins after the process transcription of DNA to RNA in the cell's nucleus. The entire process is called gene expression.

tRNA with first amino acid large ribosomal subunit small ribosomal subunit a Components are recycled. UAC anticodon 5TTTT AUG start codon mRNA TTTTTTTT3 UAG stop codon INITIATION ELONGATION TERMINATION 000 release factor good 60000 completed polypeptide UAC 5' TTTT 5'm 3 AUG UAG stop codon

HOPE YOU UNDERSTAND,THANK YOU