Table:
0
A
B
C
D
E
F
1
Species
Strain
Type
Base Pairs
Genes
Reference
2
Fervidobacterium nodosum
Rt17-B1
Thermotogae
1,950,000
1,750
2009
3
Kosmotoga olearia
TBF 19.5.1
Thermotogae
2,302,126
2,118
2011
4
Mesotoga prima
MesG1.Ag.4.2
Thermotogae
2,974,229 chromosome 1,724 plasmid
2,736
2012
5
Thermosipho africanus
TCF52B
Thermotogae
2,016,657
2,000
2009
6
Thermosipho melanesiensis
BI429
Thermotogae
1,920,000
1,879
2009
7
Thermotoga lettingae
TMO
Thermotogae
2,140,000
2,040
2009
8
Thermotoga maritima
MSB8
Thermotogae
1,860,725
1,846
1999, 2013
9
Thermotoga petrophila
RKU-1
Thermotogae
1,820,000
1,785
2009

Questions and formulas:
Question: what is the reference when the strain is msb8?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="msb8"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,B2:B9="msb8"),6))
Level: medium
Question: what is the average genes when the reference is 2009 and the strain is rku-1?
Formula: AVERAGE(FILTER(E1, (F1=2009)*(B1="rku-1")))
Formula2: AVERAGE(FILTER(E2:E9, (F2:F9=2009)*(B2:B9="rku-1")))
Level: easy