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This video discusses about how the embryos can be tested to determine if they contain a disease causing allel or not.
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The haploid male gamete, known as sperm cell, fertilizes with the haploid female gamete, known as egg cell, to form a deploid cell called zygote.
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This zygote further undergoes multiple divisions to form a structure called embryo.
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These embryos formed are implanted within the uterus of the mother and are developed into a fetus.
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Once the gestation period is completed, the individual is birthed from the mother's wound.
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Prior to the birth of the individual, the embryos can be tested to determine if they contain any alleles that may cause a disease in the individual.
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This testing of alleles within the embryo can be done using dna probes.
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Dna probes are the stretches of single strand of dna.
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These probes are used to detect the presence of complementary dna sequences in an sample.
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For the detection purposes, the dna probes are often labeled with radioisotopes or fluorophores.
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This labeling of dna probes helps the detection of the complementary sequences easier.
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Thus, if there is a target dna strand and a labeled dna probe, the binding between the two will occur if the dna probe contains the sequences complementary to target dna.
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Using this technique, the target dna can be tested.
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Tested to determine if it contains any allele that cause disease...