1. Egg activation occurs before sperm and egg cell membranes fuse.
True or False
2. A male fruit fly that is homozygous for a null mutation in the nanos gene was mated with a wildtype female fruit fly. What would the phenotype of the progeny be?
half of the progeny would have defective posterior development
half of the progeny would have defective anterior development
all of the progeny would be missing abdominal segments
all progeny would be wildtype
e) all of the progeny would die during embryogenesis