Notes from NEET topper
Dihybrid Back Cross
“Dihybrid backcross” in genetics refers to a specific type of crossbreeding experiment, typically used to study inheritance patterns of two different traits simultaneously. In such experiments, organisms that are dihybrids (possessing two different genes or traits) are crossed with organisms that are homozygous recessive for the same traits. This type of cross is used to understand the principles of inheritance and variation described by Gregor Mendel, a founding figure in the field of genetics.
In a dihybrid cross, an organism with two dominant traits (for example, AaBb, where A and B are dominant alleles) is crossed with an organism with two recessive traits (aabb). The offspring of this cross can help determine how traits are inherited and whether they are linked or assort independently. This kind of experiment is foundational in understanding Mendelian genetics, which forms the basis for the modern understanding of genetics and heredity.
