Example 2: 1  a sporadic form, which is caused by a somatic mutation in each of the two RB genes in a cell. 2  a familial (inherited) form, which is caused by a somatic mutation to one RB gene in a cell that already has one mutant RB gene inherited through the germline from a parent.
For the month of September 2012, Ketchikan reported average temperatures of 53.3Â°F, 0.8Â°F above the long-term mean of 52.5Â°F. The maximum temperature for the month was 67Â°F, which occurred on the 7th, while the minimum (41Â°F) was reported on the 16th.
Intellicast.com: The Authority in Expert Weather Ketchikan, Alaska historic weather averages and records (99950). Ketchikan, Alaska Climate report for average, high and low temperature, precipitation and snow. Monthly and Daily weather averages and records for Ketchikan, Alaska Intellicast.com The Authority in Expert Weather