Tomatoes obtained from hybridization of plants with pear-shaped and spherical fruits had only spherical fruits.

Tomatoes obtained from hybridization of plants with pear-shaped and spherical fruits had only spherical fruits. The second generation of tomatoes, grown from seeds extracted from globular fruits, had 1780 plants with globular fruits and 603 with pear-shaped ones. How many F2 plants with globular fruits out of 1780 were heterozygous?

Of the 1780s with globular fruits, 1187 were heterozygous.

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