More biology help genetics!!?

[Tyler G]

If a homozygous tall pea plant and a homozygous short pea plant are crossed. in the resulting F1 generation
a) the recessive trait disappears
b) the offspring are of medium height
c) no hybrids are produced
d) all of the offspring are short.

In pea plants, tall is dominant over short and yellow seeds are dominant over green seeds. If two pea plants that are heterozygous for plant height and for seed color are crossed, the Punnett Square reveals that one of sixteen offspring will probably be
a) short with green seeds
b) short with yellow seeds
c) tall with yellow seeds
d) tall with green seeds