What happens to a Zea mays sporophyte that has null mutation

What happens to a Zea mays sporophyte that has null mutations in the tassel seed genes? Somatic cells from the Protenor butterfly each have 6 pairs of autosomes. How many total chromosomes are found in a somatic cell of a male butterfly?

Solution

14. Null mutation in the tassel seed genes result in the generation of a male sterile plant.

15. somatic cells of a male butterfly contains 13 chromosomes,including one X chromosome.