#Question id: 5325
#Unit 8. Inheritance Biology
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
#Unit 8. Inheritance Biology
The recessive allele located on heterozygous locus present on X-chromosome in female is conclude as
#Question id: 5327
#Unit 8. Inheritance Biology
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
#Unit 8. Inheritance Biology
Which of the following mode of inheritance of genetic disorder?
#Question id: 5329
#Unit 8. Inheritance Biology
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: 5331
#Unit 8. Inheritance Biology
In some me insect XX is female and XO is male. Red body color caused by recessive mutation, while wild type body color is green .Gene for body colour on X chromosome .if homozygous red female is crossed with wild type male, the phenotype of their offspring will be