Final answer:
Heterozygous reciprocal translocations can cause abnormal gamete production and semi-sterility but not the production of completely normal gametes.
Step-by-step explanation:
Heterozygous reciprocal translocation does not result in the production of completely normal gametes. Reciprocal translocations involve the exchange of segments between nonhomologous chromosomes, leading to chromosomal abnormalities in gametes. This can cause various consequences such as failure of homologous chromosome pairing, semi-sterility due to reduced fertility, and the production of gametes that contain both duplications and deletions. While the production of normal gametes is not completely impossible, in the majority of cases, there will be deviant gametes that could result in genetic disorders or viability issues in the resulting offspring.
During meiosis, chromosomes must pair up correctly to ensure that the resulting gametes have the correct number of chromosomes. Mispairing due to a translocation can lead to gametes with an abnormal chromosome number or structure. In addition to this, nondisjunction is another meiotic error that results in aneuploid gametes with too many or too few chromosomes, which can be lethal for a diploid organism. Aneuploidy resulting from nondisjunction is different from the consequences of reciprocal translocation, and it does not generally produce completely normal gametes.