A relationship among alleles where both alleles contribute to the phenotype of the heterozygote is codominance.
This is a phenomenon when both alleles are fully expressed. As a result, offspring will have a phenotype that is neither dominant nor recessive, it is combination of both. For example, if one allele contributes to white color of flower, another allele contributes to red color, the offspring (if we cross those two flowers) will have pink flowers (both phenotypes expressed).
Explanation:
Gene therapy is the therapeutic delivery of the nucleic acid into the patients cells in the form of drug to treat disease. It is a complex treatment involves more potential for the treatment of the monogenic diseases and is also associated with a lot of significant risks . The children who were suffering from Wiskott- Aldrich syndrome which is a rare disease and were treated as the part of the clinical gene therapy trial which was carried out in the Germany. After treatment, health of children improved significantly. Then after one to three years following the gene therapy, seven out of ten children developed the cancer in the blood .
Public response towards gene therapy and acceptability of changing the genes varied a good deal from one scenario to the another. Many more techniques needed to be developed and more information of the diseases that need to be understood before the gene therapy which involve changes on the genetic setup of the body , it raises many unique ethical concerns. For decades researches are done to bring the gene therapy to clinic , still very less patients are given any effective gene therapy treatments . Even though gene therapy has been slow to reach patients, it's future is encouraging.
The acronym CHNOPS (carbon, hydrogen<span>, </span>nitrogen<span>, oxygen, phosphorus, sulfur), represents the six most </span>important<span> chemical elements whose covalent combinations make up most biological molecules on Earth. Sulfur is used in the </span>amino acids are proteins<span> cysteine and methionine.</span>
Answer:
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Allele frequencies for B and b.
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"b"(q) allele frequency = 0.60
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"B"(p) allele frequency = 0.40
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Genotype frequencies;
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BB = 0.16
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Bb = 0.48
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Bb = 0.36
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Explanation:
Given
Non-baldness (B) is dominant on baldness(b), so B is dominant over b.
Homozygous pattern baldness male (bb) = 360,
Heterozygous non- baldness (Bb)= 480,
Homozygous non-baldness (BB)= 160.
So, we can also denote then by genotypes only,
BB= 160;
Bb= 480;
bb= 360;
Total= 1000
Allele frequency q² (bb) = 360/1000=0.36
allele fequency for q( b)= √o.36=0.60.
Allele frequency for p²(BB) = 160/1000=0.16
allele frequency p(B)= √0.16 = 0.4
Expected genotype frequencies;
BB = 160/1000 = 0.16
Bb = 480/1000= 0.48
Bb = 360/1000= 0.36
