Mendel's "true-breeding" plants are
- A
Sterile (cannot produce viable gametes through self-pollination)
- B
Heterozygous (carry two different alleles at the relevant gene locus)
- C
Triploid (possess three complete sets of chromosomes per somatic cell)
- Dcheck_circle
Homozygous (always produce the same phenotype when self-pollinated)
Explanation
True-breeding lines have homozygous genotypes; Mendel used these pure lines as parents in his crosses.