If a Mutation Resulted in the Formation of Pollen That

Multiple Choice

If a mutation resulted in the formation of pollen that could NOT form a pollen tube,when the pollen landed on the stigma,

A) sperm could not move from filaments to anthers.
B) the zygote could not leave the embryo sac.
C) sperm would be unable to enter the ovule.
D) anthers could not produce pollen.