Yes, it is possible for two tall pea plants to produce a short pea plant variety if both tall plants are heterozygous for height (Tt), where "T" represents the allele for tallness (dominant) and "t" represents the allele for shortness (recessive). In this case, the combination of the alleles during gamete formation can result in offspring with the genotype "tt," which would express the short phenotype. Thus, the correct answer is:
Yes, it is possible for plants to produce offspring with traits different from their own.