4.2 Simple calculations

Given the following table:

type of RNA	Total
mRNA	329
miRNA	45
snoRNA	12
lncRNA	28

Calculate the total number of RNAs reported in the table:

329 + 45 + 12 + 28

## [1] 414

What is the percentage of miRNA?

( 45 / 414 ) * 100

## [1] 10.86957

HANDS-ON

Given the following table (number of exons / introns of the hg38 genome, Gencode 31 annotation):
Total number of genes: 60651

Of which:

gene type	count
Protein-coding genes	19951
Long non-coding RNA genes	17948
Small non-coding RNA genes	7569
Pseudogenes	14773

1. How many genes are we missing to reach the total number of genes?
2. What is the percentage of long non-coding RNA genes?