- A Single-gene traits that generally follow simple Mendelian dominant-recessive inheritance patterns
- B Chromosomal regions containing multiple genes that together contribute to complex quantitative traits
- C Mainly the dominant alleles that happen to be present at a given genetic locus
- D Mainly environmental factors that have no underlying genetic basis whatsoever
Correct answer: B. Chromosomal regions containing multiple genes that together contribute to complex quantitative traits
Explanation: QTL analysis: statistical method to map chromosomal regions containing genes that contribute to polygenic/complex traits (height, yield, disease risk).
Concept context
Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.
Read the full Principles of Inheritance and Variation notes →