Mutations cause changes in the genetic code that lead to genetic variation and the potential to develop disease. Gene mutations can be generally categorized into two types: point mutations and base-pair insertions or deletions. Point mutations are the most common type of gene mutation.
OVERNIGHTS: The Difference Between Night and Day. By. Isabelle Fox, Ph. D. Daytime gives us sunlight Nighttime brings on darkness. Daytime is familiar Nighttime is strange. Day time is for activity Nighttime is for comforting. Daytime is for learning Nighttime is for dreaming.
Latitude Determines Day Length. Even if day and night arenât exactly equal on the day of the equinox, there are days when day and night are both very close to 12 hours. However, this date depends on the latitude, and can vary by as much as several weeks from place to place.