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DNA- DNA is in your blood and it is everywhere in your body. It
makes you, you. DNA makes us different from everyone else.DNA
can be used to identify someone. You can use it in a crime lab to
find out a person who has committed a crime and has left
fingerprints. DNA consists of genetic differences called genes that
are carried through from the parent to the child. DNA consists of
two chains that are connected that contain your personal
differences.
Chromosomes are threadlike linear strand of DNA and
associated proteins in the nucleus of eukaryotic cells
that carry the genes and functions in the transmission of
hereditary information. A circular strand of DNA in
bacteria that contains the hereditary information
necessary for cell life.
A gene is a specific sequence of nucleotides in DNA or
RNA that is located in the germ plasma usually on a
chromosome and that is the functional unit of inheritance
controlling the transmission and expression of one or
more traits.
In conclusion, we believe that genetics are mainly
revolved around DNA. Also, the subject of genetics is
very confusing. There are a lot of words which people
our age will not understand.
Hereditary- Genetically transmitted or transmittable from parent to offspring.
DNA- Consists of genetic differences called genes that are carried through from the
parent to the child.
RNA- A polymeric constituent of all living cells and many viruses.
Chromosomes- A circular strand of DNA in bacteria that contains the hereditary
information necessary for cell life.
Genes- A hereditary unit consisting of a sequence of DNA that occupies a specific
location on a chromosome and determines a particular characteristic in an organism.
Genotype- The genetic makeup, as distinguished from the physical appearance, of an
organism or a group of organisms.
Phenotype- The expression of a specific trait, such as stature or blood type, based on
genetic and environmental influences.
Homozygote- An organism that has the same alleles as a particular gene locus on
homologous chromosomes.
Heterozygote- A person possessing two different forms of a particular gene, one
inherited from each parent.
Alleles- One member of a pair of series of genes that occupy a specific position on a
specific chromosome.
Dominant- Exercising the most influence or control.
Recessive- Genetics. Of, relating to, or designating an allele that does not produce
a characteristic effect when present with a dominant allele.
X-linked gene- A gene located on an X-chromosome.
Autosomal link- A chromosome that is not a sex chromosome.
What are the symptoms of cystic
fibrosis
Symptoms include a persistent cough with thick and often greenish-coloured mucus,
failure to grow normally, recurrent sinus and bronchial infections, and frequent,
bulky, foul- smelling stools . Infants may experience a set of acute symptoms,
including a distended abdomen, failure to pass stool, and vomiting. Although the
course of the disease is highly variable, largely dependant upon the severity and
frequency of respiratory infections, CF inevitably leads to debility and death.
Average survival is to age 31.
Medical Treatments
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