#Question id: 5325
#XL - T Zoology
Cystic fibrosis is caused by a recessive lethal gene and can be detected by an excess concentration of chloride in sweat. A normal man whose sister has cystic fibrosis, his normal wife whose brother has cystic fibrosis. What is chance of cystic fibrosis in their child?
#Question id: 5326
#XL - T Zoology
The recessive allele located on heterozygous locus present on X-chromosome in female is conclude as
#Question id: 5327
#XL - T Zoology
In the human pedigree shown here, the daughter indicated by the black circle (II-1) has a form of deafness determined by a recessive allele. What is the probability that the phenotypically normal son (II 3) is heterozygous for the gene?
#Question id: 5328
#XL - T Zoology
Which of the following mode of inheritance of genetic disorder?
#Question id: 5329
#XL - T Zoology
A sex-linked recessive allele c produces a red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man. What are the chances that the second child from this marriage will be a colorblind boy?
#Question id: 5330
#XL - T Zoology
First child of both affected couple has normal, an autosomal dominant disorder. What is probability of second child of this couple would have diseased?