Genetic variation comes from several sources. Genetic variation comes from two main sources: mutation and recombination. â¢ Mutation A mutation is a random change in the DNA of a gene. This change can form a new allele. Mutations in reproductive cells can be passed on to offspring. This increases the genetic variation in the gene pool.
The medial collateral ligament (MCL) is a broad, thick band that runs down the inner part of the knee, from the femur (thighbone) to about four to six inches from the top of the tibia (shinbone).The MCL's primary function is to prevent the leg from over-extending inward, but it also is part of the mechanism that stabilizes the knee and allows it to ...
Collateral Ligaments. These are found on the sides of your knee. The medial or inside collateral ligament (MCL) connects the femur to the tibia. The lateral or outside collateral ligament (LCL) connects the femur to the smaller bone in the lower leg (fibula).The collateral ligaments control the sideways motion of your knee and brace it against unusual movement.hese are found on the sides of your knee. The medial or inside collateral ligament (MCL) connects the femur to the tibia. The lateral or outside collateral ligament (LCL) connects the femur to the smaller bone in the lower leg (fibula).