Tay Sach's disease results from a mutation in the hexosaminidase A gene. Heterozygotes are normal. This is an example of what type of genetic effect? lethal epistasis dominant lethal dominant epistasis recessive lethal recessive epistasis
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| lethal epistasis |
| dominant lethal |
| dominant epistasis |
| recessive lethal |
| recessive epistasis |
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- In mitochondrial disorder, mutation in nuclear DNA may follow autosomal dominant, autosomal recessive, or X-linked pattern of inheritance Group of answer choices False TrueAll of the following human genetic diseases exhibit maternal inheritance EXCEPT: A. Leber's hereditary optic neuropathy B. Myoclonic epilepsy C. Kearnes-Sayre syndrome D. Edwards syndromeMany oncogenes result from mutations that cause excessive expression of a protein in cells where it is normally not expressed or is expressed at inappropriate times during development. This type of mutation can be described as ________. A) amorphic B) hypomorphic C)hypermorphic D) neomorphic E) dominant negative
