Please view on larger device
(tablet, laptop, desktop)

.. or rotate to landscape for larger phones

Or try mobile app..

Get iPhone mobile app
Get iPad (HD) app
Get Android mobile app

   1 - AaBbCc
X

   1 - aabbcc
aa - grey body (AA or Aa = gold body)
bb - small eyes (BB or Bb = big eyes)
cc - no scales (CC or Cc = scales)

Enter number of gametes observed from Heterozygote:

Please view on larger device
(tablet, laptop, desktop)

.. or rotate to landscape for larger phones

Or try mobile app..

Get iPhone mobile app
Get iPad (HD) app
Get Android mobile app
New problem
(3 different genes)

   1 - AaBbCc
X

   1 - aabbcc
aa - grey body (AA or Aa = gold body)
bb - small eyes (BB or Bb = big eyes)
cc - no scales (CC or Cc = scales)

Gametes observed from Heterozygote (Total: 1000)


Info - Test Cross Linkage

Problem Solver

(calculator)

Accepts genotype counts for three genes from a "test cross", and uses the counts to infer:

  • The gametic phase
  • The recombination rate between the three genes
  • The gene order

Test Yourself

(problem generator)

Presents genotype counts observed for three genes from a "test cross". Use these results to propose:

  • Gametic Phase (heterozygote)
  • The gene order
  • Linkage
  • The recombination rate between the three genes

Use results above to predict Phase (heterozygote), gene order, linkage and recombination fractions:

(Double click gene to change phase. Drag/drop gene to change order. Double click link to link/unlink)

Gene order, *parental phase, linkage:
(*Choose either parental phase)
A
B
C

Recombination fractions:
Info - Test Cross Linkage

Accepts genotype counts for three genes from a "test cross", and uses the counts to infer:

Presents genotype counts observed for three genes from a "test cross". Use these results to propose: