Dna/ Rna

Question 1

What is gene expression?

Answer 1

The way in which information from a gene is forms a functioning protein product

Question 2

What is a regulatory gene

Answer 2

Controls genes at a protein/ rna level

Question 3

What is a gene?

Answer 3

A sequence of nucleotides that code for a specific type of DNA

Question 4

What are the stages in protein synthesis and what do they do?

Answer 4

1. Transcription- making mRNA

2. Translation- decoding mRNA

Question 5

Describe the stages of transcription in protein synthesis

Answer 5

1. Initiation- Rna polymerase binds to Dna at the promoter region
2. Elongation- RNA polymerase unzips the DNA and adds complementary RNA bases
3. Termination- RNA polymerase reaches a stop codon and RNA polymerase detaches and mRNA is released

Question 6

Describe the basic procedure of genomes manipulation

Answer 6

1. Plasmid of DNA is isolated
2. Gene that is of interested is isolated
3. Gene is inserted into plasmid to form recombined plasmid
4. Recombined gene is placed into cell
5. New cell is cloned

Question 7

What is the main function of DNA

Answer 7

It stores the complete genetic information required to specify the structure of proteins and thus metabolic functions within the cell

Question 8

What makes DNA and RNA unique?

Answer 8

They can direct their own replication

Question 9

Why is DNA important?

Answer 9

DNA is the reason that there is a resemblance between offspring and their parents. If ha