| Type | MGI:General | Description | axons of olfactory neurons expressing the mutant allele display a diffuse distribution on the outer nerve layer of the olfactory bulb with very few entering the glomerular layer aberrant pattern apparent as early as E17 number of axons expressing deletion declines from birth to 10 weeks of age when axon number is about 1% of control numbers similar results are seen in homozygous animals |
