BIF401 Final Term Mega File by Zainab Arshad

Chapter 4 - RNA Secondary Structure Prediction · Module 001: DNA TO RNA SEQUENCES · MOTIVATION

In early days RNA was a considered as a structure which was involve between DNA and protein, means takes information from DNA and converts that information into protein synthesis. Short question: Types of Now we know that it has multiple types like mRNA, tRNA, miRNA and siRNA. And they perform most of the work in gene expression and proteins. MCQ: Not All RNA molecules are same, they differ in nucleotide sequences and functions also.

•  Short question: RNA virsus defiation:

Many viruses assemble their genomes from RNAs. They are therefore called RNA viruses. Examples include MCQ: Human Immunodeficiency Virus and Hepatitis C Virus.

Difference Between between RNA and DNA:

There is little difference between RNA and DNA:

•  Thymine is replaced by Uracil in RNA molecule.
•  RNA molecule is single stand.
•  RNA contain ribose sugar.

S.Q: Why RNA have shorter life spam

Because RNA has two (OH) groups that’s why it has shot life spam because of both (OH) repulsion. Module 002: TYPES OF RNA &THEIR FUNCTIONS There are two categories of RNA:

•  Coding RNA
•  Non-Coding RNA

MCQ: Coding RNA perform their coded function in protein synthesis.

Mcq: And Non-coding RNA helps in translation process.

Q: Write the types of RNA Mcq: How many types of RNA

TYPES OF RNA

There are many types of RNA according to their funtions like:

•  Messenger RNA (mRNA)
•  Transfer RNA (tRNA)
•  Ribosomal RNA (rRNA)
•  Micro RNAs (miRNA)
•  Small Interfering RNA (siRNA)

Short question: Write a note on Mrna. Mcq: % age of mrna in cell? Only 5-10%

MESSENGER RNA

Only 5-10% of this RNA type is present in cell. Which has variable sequence, variable size and it carries the genetic information form DNA to Ribosomes where proteins to be assembled. Messenger RNA 5’ end is capped with (7-Methyl Guanosine Triphosphate) which helps the