Life cycle of a fern scenario: Hybrid 1- the sperm in the antheridium was found

Question

Life cycle of a fern scenario: Hybrid 1- the sperm in the antheridium was found to have 8 chromosomes; the dominant gene 'A' is on one of the chromosomes which produced large sporophyte fronds. Hybrid 2 - the egg was also found to contain 8 chromosomes with a recessive gene 'a' which produced small sporophyte fronds. If fertilization took place between both hybrids, how many chromosomes and what would be the genotypes of the resulting structures below after fertilization in the fern's life cycle?

Resulting sporophyte:
Resulting gametophyte:
Spores:

Explanation / Answer

# of chromosomes when they mate = 16 Since you are mixing A with a, you will get Aa. Since A is dominant, it will result in heterozygous dominant. It will result in the production of large sporophyte fronds. Not sure what you are asking with the last 3 lines...

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