AQA Biology

These Notes gives Explanation on Following Topics. You must buy to complete your concept regarding it. Nucleus, Endoplasmic Nucleus, Golgi appratus,Lysosome, Cell Membrane, Cytoplasm,Mitochondria,Plastids,Vacuoles,Oligosaccharide,Polysaccharide,Lipid,Protein,RNA,Conjugate Molecules,Cofactor,Inhibtion,Gylcolysis and more

Genetic testing is used to diagnose many disorders (eg, Turner syndrome, Klinefelter syndrome, hemochromatosis). Diagnosis of a genetic disorder often indicates that relatives of the affected person should be screened for the genetic defect or for carrier status.

It contains all the information about biological molecule like rna conjugated molecules,protein,lipid,heat of vaporization etc..

Contains information like inhibition and glycolysis

A gene, the basic unit of heredity, is a segment of DNA containing all the information necessary to synthesize a polypeptide (protein). Protein synthesis, folding, and tertiary and quaternary structure ultimately determine much of the body’s structure and function.

Certain situations represent aberrant inheritance, often because genes or chromosomes are altered. However, some of these alterations, such as mosaicism, are very common; others, such as polymorphisms, are so common that they may be considered normal variants

Genetic disorders determined by a single gene (Mendelian disorders) are easiest to analyze and the most well understood. If expression of a trait requires only one copy of a gene (one allele), that trait is considered dominant. If expression of a trait requires 2 copies of a gene (2 alleles), that trait is considered recessive. One exception is X-linked disorders. Because males usually have no paired allele to offset the effects of most alleles on the X chromosome, the X chromosome allele is...

Many factors can affect gene expression. Some cause the expression of traits to deviate from the patterns predicted by Mendelian inheritance.

Genetic testing is used to diagnose many disorders (eg, Turner syndrome, Klinefelter syndrome, hemochromatosis). Diagnosis of a genetic disorder often indicates that relatives of the affected person should be screened for the genetic defect or for carrier status.