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Punnett squares for each combination of parents' colour vision status giving probabilities of their offsprings' status, each cell having 25% probability in theory. The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) [1] was an African-American woman [4] whose cancer cells are the source of the HeLa cell line, the first immortalized human cell line [A] and one of the most important cell lines in medical research. An immortalized cell line reproduces indefinitely under specific ...
Sickle-cell anaemia is found mostly in tropical populations in Africa and India.An individual homozygous for the recessive sickle hemoglobin, HgbS, has a short expectancy of life, whereas the life expectancy of the standard hemoglobin (HgbA) homozygote and also the heterozygote is normal (though heterozygote individuals will suffer periodic problems).
HBB protein is produced by the gene HBB which is located in the multigene locus of β-globin locus on chromosome 11, specifically on the short arm position 15.4. Expression of beta globin and the neighbouring globins in the β-globin locus is controlled by single locus control region (LCR), the most important regulatory element in the locus located upstream of the globin genes. [9]
White women may have darker skin than white men because the female sex hormone estrogen is known to increase skin pigmentation in lighter-skinned populations. [12] White women's skin is significantly darker than White men's, to the extent that White women have a much lower rate of skin cancer than White men. [12]
Hemoglobin SC disease – A compound heterozygous form with one sickle gene and another encoding hemoglobin C. Hemoglobin Hopkins-2 – A variant form of hemoglobin that is sometimes viewed in combination with hemoglobin S to produce sickle cell disease.
Autosomal dominant and autosomal recessive inheritance, the two most common Mendelian inheritance patterns. An autosome is any chromosome other than a sex chromosome.. In genetics, dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome.
Gene editing therapies aimed at increasing fetal hemoglobin production in beta thalassemia as well as sickle cell anemia by inhibiting the BCL11A gene have been developed. [ 44 ] [ 45 ] Exagamglogene autotemcel , sold under the brand name Casgevy, is a gene therapy for the treatment of transfusion-dependent beta thalassemia developed by Vertex ...
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