DETAILED ANSWERS 2025
, Incomplete penetrance - ANSWERPenetrant organisms have the genotype and express
the phenotype. Non penetrant organisms have the genotype but don't express the
phenotype.
(penetrant)/(total penetrant+ non penetrant)
No gene interaction - ANSWER9:3:3:1
9/16 A_B_
3/16 A_bb
3/16 aaB_
1/16 aabb
Complementary gene interaction - ANSWER9:7
9/16 A_B_
7/16 A_bb or aaB_ or aabb
Duplicate gene interaction - ANSWER15:1
15/16 A_B_ or A_bb or aaB_
1/16 aabb
Dominate gene interaction - ANSWER9:6:1
9/16 A_B_
6/16 A_bb or aaB_
1/16 aabb
Dominate epistasis - ANSWER12:3:1
12/16 A_B_ or A_bb
3/16 aaB_
1/16 aabb
Recessive epistasis - ANSWER9:3:4
9/16 A_B_
3/16 A_bb
4/16 aaB_ or aabb
Dominate suppression - ANSWER13:3
9/16 A_B_
3/16 A_bb
4/16 aaB_ or aabb
Prototroph - ANSWERcan grow on any media
Auxotroph - ANSWERmutant that requires a growth factor