*Tomato:* 2n = 12 chromosomes; n = 6 chromosomes

*Potato:* 2n = 48 chromosomes; n = 24 chromosomes

Fertilization will result in the combination of 6 + 25 chromosomes = 30 chromosomes

If the individual has an *even number of chromosome sets*, they are usually **fertile**.

**Part A and B.** A tomato gamete will have **6 chromosomes** while a potato gamete will have **24 chromosomes**.

Dr. Ara B. Dopsis has an idea he thinks will be a boon to agriculture. He wants to create the “pomato,” a hybrid between a tomato (*Lycopersicon esculentum*) that has 12 chromosomes and a potato (*Solanum tuberosum*) that has 48 chromosomes. Dr. Dopsis is hoping that his new pomato will have tuber growth like a potato and the fruit production of a tomato. He joins a haploid gamete from each species to form a hybrid and then induces doubling of chromosome number.

**Part A. **How many chromosomes will be in each tomato gamete?

**Part B. **How many chromosomes will be in each potato gamete?

**Part C. **How many chromosomes will the hybrid have before chromosome doubling?

**Part D. **Will this hybrid be infertile?

**Part E. **How many chromosomes will the polyploid have after chromosome doubling?

**Part F. **Can Dr. Dopsis be sure the polyploid will have the characteristics he wants?

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