In a test cross, the F1 generation is crossed with which individual?

✅Explanation: A test cross is a genetic cross used to determine the genotype of an individual with a dominant phenotype. The individual in question (usually the F1 generation) is crossed with a homozygous recessive individual. By analyzing the phenotypic ratios of the offspring, the genotype of the F1 individual can be deduced.

     📌Other Options:
(a) Back cross to any parent: A back cross involves crossing an offspring with one of its parents.
(b) Drosophila: Drosophila (fruit fly) is a model organism used in genetics.
(d) Pea: Peas are a common organism used in genetic crosses.