5. Considering hybridization in
a trait like the colour of the
flowers of a given plant
species (red / yellow)
conditioned by a pair of
different alleles in relation to
complete dominance (red
dominant / yellow recessive),
why in the F1 generation is
one of the colours missing?

Gap-fill exercise

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In this monohybridism one the colors
does not in the F1 generation
their parental generators are
, i.e., homozygous, and in all
descendants are heterozygous (
parental individual forms only type
of gamete). Since heterozygous
genotypes appear and is dominant
over yellow individuals of the F1
will present only red .