Home › CBSE Class 12 (Science) › Biology › Principles of Inheritance and Variation › In polygenic inheritance, how do the effects of …
In polygenic inheritance, how do the effects of alleles combine?
AThey cancel out
BThey are additive
CThey are lethal
DThey are random
Answer & Solution
Correct answer: B. They are additive
The phenotype reflects the contribution of each allele, so the effects add up.
Related questions
The total number of chromosomes in a normal human cell is what?Polyploidy is often seen in which group of organisms?Absence of one chromosome of a pair is termed what?Klinefelter's individuals have which feature besides masculine development?Turner's syndrome results from what chromosomal change in females?Who first described Down's syndrome in 1866?Chromosomal disorders arise from absence, excess or abnormal what?Alpha thalassemia involves genes on which chromosome?