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Physical features
A crucial aspect of the self
Physical self
is shaped by biological and environmental factors
Chromosomes
are threadlike bodies in the nucleus of the cell & the storage unit of genes
Sex chromosomes
the 23rd pair determines the sex of the individual
Deoxyribonucleic acid (DNA)
contains the genetic instructions specifying the biological development of every individual.
Deoxyribonucleic acid (DNA)
They are considered as the blueprint of life.
XY
indicates a male
XX
indicates a female
Maturation
is known as the completion of the growth of genetic character within an organism or the unfolding of an individual’s inherent traits or potential
Heredity
defined as the transmission of traits from parents to offspring. The traits are made up of specific information embedded within one’s gene
Gene
The basic unit of heredity
Genotype
refers to the specific information embedded within one’s genes; not all genotypes translate to an observed physical characteristic.
Phenotype
the physical expression of a particular trait
Genotype
can be determined through blood testing
phenotype
can be directly observed
Note 
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