The ribosomes are the part of the cell that are in charge of building proteins. This process is called Protein Biosynthesis. Inside ribosomes, the appropriate molecules join to form protein chains.

The mitochrodion burns glucose, which gives off energy to the cell.

1. The two lipid layers may differ in specific lipid composition, and each protein has directional orientation in the membrane. The plasma membrane also has carbohydrates, which are restricted to the exterior surface. This asymmetrical distribution of proteins, lipids, and carbohydrates is determined as the membrane is being built by the ER end up on the outside face of the plasma membrane.

Heterotrophs get their food by eating something else. For example, lions are heterotrophs because they eat other animals such as deer. The deer is a heterotroph because it eats grass. Grass is an autotroph because it makes its own food through photosynthesis.

Every person in the world has different DNA to some extent. Humans all share 99.99% identical DNA, but there are certain groups of genetic markers that scientists have found that differ between each individual. A multitude of these groups are evaluated in both a sample from a crime scene and a control (taken from a subject) and these markers are compared. If a predtermined amount of these markers match, the DNA is considered a match. The accuracy of this is very good. The accuracy is in the 1:10,000,000,000 (10 billion).

It has to do with the size of each molecule. One is large (double ring) and the other is small (single ring).

By having them pair with each other, the spacing along the length of DNA or RNA is kept uniform.

A monohybrid cross involves just one gene. A dihybrid cross involves two. In a monohybrid cross, there are four possible allele combinations (although depending on the alleles of the parents there may only be one or two possibilities).