Who discovered sex linked inheritance

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Added: 20.10.2019
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Most of the inheritable characters are controlled by genes located in autosomes. The inheritance of traits related to autosomes normally follows Mendel's laws. Mendelian ratios are not obtained for those characters for which genes are exclusively located either in X or Y chromosome. He found that the gene for white eye colour is X - linked. Further it was found to be recessive to another X - linked, dominant gene for red eye colour.
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Sex linkage

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Who discovered sex linked inheritance - Answers

Sex linkage is the patterns of inheritance and presentation when a gene mutation allele is present on a sex chromosome allosome rather than a non-sex chromosome autosome. They are characteristically different from the autosomal forms of dominance and recessiveness as they are different depending on the sex of the individual. Since humans have several times as many genes on the female X chromosome than on the male Y chromosome , X-linked traits are much more common than Y-linked traits. Additionally, there are more X-linked recessive conditions than X-linked dominant , and X-linked recessive conditions affect males much more commonly, due to males only having the one X chromosome required for the condition to present.
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What is sex linked inheritance?

Humans have 23 pairs of chromosomes 22 of these pairs of homologous chromosomes are called autosomes. The 23rd pair of chromosomes is called the sex chromosomes and is indicated by the letter x for females and the letter y for males. If you are female then your sex chromosomes are homologous, XX, if you are male your sex chromosomes are XY.
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Genetic linkage was first discovered by the British geneticists William Bateson and Reginald Punnett. The understanding of genetic linkage was expanded by the work of Thomas Hunt Morgan. Alfred Sturtevant, a student of Morgan's, first developed genetic maps, also known as linkage maps. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.

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