Acid And Basic Dyes

Acidic dyes are anionic which means are negatively charged and thus react with positively charged and repulsed by negatively charged materials. They are called as negative stain and are attached to the background and stains it and cells are colorless. Basic dyes are cationic which means are positively charged. Therefore, it reacts with negatively charged […]

What are enzymes ?

Enzymes are macromolecular biological catalysts. The molecules upon which enzymes may act are called substrates and therefore the enzyme converts the substrates into different molecules referred to as products. Almost all metabolic processes within the cell need enzyme catalysis so as to occur at rates fast enough to sustain life. Metabolic pathways depend on substrate […]

Somatic vs Germline mutations

Somatic vs Germline mutations All of the following types of mutations can be passed to offspring EXCEPT ______ mutations. -germ -frameshift -somatic -silent -nonsense 1) Answer: Somatic Explanation: Germ mutations occur in germ cells such as in egg and sperm cells. As germ mutations occur in reproductive cells and thus passed to next generation. Silent […]