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.
Average Weather in July in Sitka Alaska, United States. In Sitka, the month of July is characterized by gradually rising daily high temperatures, with daily highs increasing by 2Â°F, from 60Â°F to 62Â°F over the course of the month, and rarely exceeding 68Â°F or dropping below 55Â°F.