Biology-B6-Inherited Disorders 0.0 / 5 ? BiologyDNA and inheritanceGCSEAQA Created by: tonisha_Created on: 21-02-23 19:51 What are two disorders? Cystic Fibrosis Polydactyly 1 of 20 CYSTIC FIBROSIS ---------------------- This is a genetic disorder of what? the cell membranes 2 of 20 This causes what? body to produce a lot of thick sticky mucus in air passages and pancreas 3 of 20 Th allele that causes it is? recessive 4 of 20 People with only one of the alleles? wont have the disorder 5 of 20 Why? because it is recessive a 2x of it is needed 6 of 20 These people however would be considered? carriers 7 of 20 If both parents are carriers what is the chance a a fraction that the offspring will also have it? 1/4 8 of 20 Polydactyly --------------------- This is where? a person is born with extra fingers or toes 9 of 20 Caused by what allele? dominant 10 of 20 This means that people with only one can? inherit the disorder 11 of 20 If only one parent is a carrier (P) what is the chance of offspring having the disorder? 50% 1:1 12 of 20 A solution to inherited disorders is? embryo screening 13 of 20 Here they test whether embryo has alleles? for genetic disorder 14 of 20 ISSUES ------------- Economic? expensive 15 of 20 Ethical is that large number of embryos are? created 16 of 20 But only small number? used 17 of 20 Meaning rest are? destroyed 18 of 20 People may begin to create _______ offspring? desirable 19 of 20 Scientists in the future may be able to correct faulty alleles this is called? gene therapy 20 of 20
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