RNA

Question 1

Describe rRNA

Answer 1

• ribosomal RNA

* forms complexes with proteins and enzymes to become ribosomes

Question 2

Describe RNA

Answer 2

• ribose sugar
• single chain
• able to leave the nucleus
• contains uracil
• made in the nucleus

Question 3

Describe tRNA

Answer 3

• hydrogen bonds

* 61 different types and anti codons (some are stop and start) -> degenerate code

Question 4

Define proteome

Answer 4

The full range of proteins produced by the genome

Question 5

What is methinine

Answer 5

The start amino acid

Question 6

Name the process that removes base sequences from pre-mRNA to form mRNA

Answer 6

Splicing

Question 7

Explain the difference between pre-mRNA or mRNA

Answer 7

pre-mRNA -> contains introns

mRNA -> only contains exons

Question 8

How does the structure of RNA differ from DNA?

Answer 8

• one polynucleotide chain that forms an α-helix
• ribose sugar
• uracil
• smaller, shorter
• able to leave the nucleus