Concept explainers
To discuss:
Why some individuals may not exhibit the
Introduction:
DNA is a genetic material consisting of a long stretch of
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Anatomy & Physiology: The Unity of Form and Function
- True or false? Gene expression patterns can be inherited.arrow_forwardthe theory of the inheritance of acquired characteristics and noted that this theory is no longer accepted. Is the central dogma consistent with the theory of the inheritance of acquired characteristics? Why or why not?arrow_forwardWhy most loss-of-function mutant alleles are recessive to wild-type allelesarrow_forward
- Identical twins have identical but they do not have identical adult phenotypes. ---- This is caused by responses to the different environments they encounter. genotypes; mitochondrial DNA mitochondrial DNA; genotypic autosomal DNA; genotypic epigenomes; genotypic genotypes; epigeneticarrow_forwardFill in the Blanks  When two alleles are equally expressed, this is called (blank)  .arrow_forwardhow genotype and phenotype are relatedarrow_forward
- Traits are inherited germ line wise (vertical inheritance) and somatic (epigenetics) inheritance, what exactly is the difference in the traits manifestation between the two indicated inheritances?arrow_forwardan example of a condition which is inherited via homozygous genes and one which is heterozygous. Do not use things like hair color or the color of Mendel’s pea plants here- discuss genetic disordersarrow_forwardSuppose a maternal effect gene exists as a functional dominantallele and a nonfunctional recessive allele. A mother who is phenotypically abnormal produces all normal offspring. Explain thegenotype of the motherarrow_forward
- Mendelian Genetics and Non-Mendelian Genetics: Huntington’s disease, a neurodegenerative genetic disorder that typically becomes noticeable in middle age, is due to an autosomal dominant allele. Sickle cell anemia, on the other hand, is a genetic blood disorder due to a recessive allele. Jillian is a carrier of the allele for sickle cell anemia but has no sign of any neurodegenerative disorder in her family. She married  Jacobwhose father died of Huntington’s disease. His mother, however, is not inflicted with that condition. Neither of his parents exhibit sickle cell anemia. 1. Give the genotypes of Jillian and Jacob.    Assuming that they will have 4 children, what is the probability that: 2. all their children will be normal? 3. they will have a son with Huntington’s disease? 4. they will have a daughter inflicted with both conditionsarrow_forwardgenotype and phenotypearrow_forwardNeo-Mendelian Genetics: Complete dominance and overdominance Huntington’s disease, a neurodegenerative genetic disorder that typically becomes noticeable in middle age, is due to an autosomal dominant allele. Sickle cell anemia, on the other hand, is a genetic blood disorder due to a recessive allele. Mary is a carrier of the allele for sickle cell anemia but has no sign of any neurodegenerative disorder in her family. She married Paul whose father died of Huntington’s disease. His mother, however, is not inflicted with that condition. Neither of his parents exhibits sickle cell anemia.   What are the genotypes of Mary and Paul?  If they plan to have four children, what is the probability that: all their children will be normal? ____________ they will have a son with Huntington’s disease? ___________ they will have a daughter inflicted with both conditions?____________arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning