Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
AP Courses
/
AP Biology
/
Pleiotropy
Grade Level
AP Biology
APB.277 Pleiotropy
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
In a study of a hormone biosynthesis gene, which observation best supports pleiotropy?
A
Stem elongation increases when plants are shaded by neighbors.
B
Fruit ripening time varies continuously in a population with many segregating loci.
C
A loss-of-function allele reduces stem elongation and delays fruit ripening, and both phenotypes are rescued by supplying the functional gene.
D
A stem-elongation gene and a ripening-time gene are inherited together due to close linkage.
Submit Answer