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cmikell124
27.02.2020 •
Biology
A. Most of the X chromosome genes encode proteins that have no role in female sexual development. b. Heterozygous females are more severely affected by X-linked dominant disorders than heterozygous males. c. When dominant alleles are present on the X chromosome, they are expressed in a recessive manner in the hemizygous state. d. When males have the unusual condition of two Y chromosomes and are missing the X chromosome, all physiologic function remains normal.
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Ответ:
a) false
b) false
c) false
d) true
Explanation:
a) X-chromosomes have all the genes for sexual characters of female child because female child receives 2 X-chromosomes.
b). Female are more affected with X-linked dominant disorders because female receive both the X chromosome from each of the parent.
c). In hemizygous state only single copy of gene in diploid cells. All males are hemizygous for genes on sex chromosome because male have only one sex chromosome as X and Y.
d). The resultant male will be having normal features of fertility only slow learning process, acne and above average height is seen.
Ответ:
FUNG
Explanation: