Children with this condition has the following features: wide or web-like neck; low-set ears; broad chest with widely spaced nipples; high, narrow roof of the mouth (palate); arms that turn outward at the elbows; fingernails and toenails that are narrow and turned upward; swelling of the hands and feet, especially at birth; slightly smaller than average height at birth; slowed growth; and cardiac defects.    The statement applies to Turner syndrome only       The statement applies to Down syndrome only       The statement applies to both Turner syndrome and Down syndrome       The statement applies to neither Turner syndrome nor Down syndrome

Neurofibromatosis type 1 (NF1) is an inherited is an inheritent dominant disorder. The phenotype usually involves the production of many skin neurofibromas. Answer the following question about the disorder:              The rarer form of neurofibromatosis is called segmental neurofibromatosis. In this form of the disease, neither parent of the patient has any clinical sign of the disease, and the tumors in the patient are restricted to one part of the body. Suggest an explanation for the genesis of segmental neurofibromatosis that clarifies why it is restricted to one part of the body.

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Complete each sentence with the appropriate term or phrase. dependent on The maternal effect refers to the fact that the phenotype of the offspring is depenedent on the mother. 75% dextral and 25% sinistral of the 1:2:1 Maternal effect genes such as those that control snail shell twisting code for proteins that are 100% dextral independent of With maternal effect genes, the phenotype of the offspring is genotype of the father. the deposited in the egg With maternal effect genes, the ratios of progeny that have right or left handed twisting can be predicted since the inheritance of the alleles follows genotype 100% sinistral In a mating of two Dd snails the phenotypic Mendel's law of ratio will be and the assortment genotypic ratio will be 2:1 Mendel's law of segregation Reset

5) Which of the following statements about fetal alcohol syndrome (FAS) is true? A) FAS is the most common birth defect in the United States. B) FAS is associated with alcohol consumption immediately after birth. C) Symptoms of FAS include mental retardation and an unusually large head. D) Symptoms of FAS include mental retardation and a small head.

Identify a disorder caused by a chromosomal abnormality and how the disorder affects the individuals with this disorder. When was this disorder discovered and how often is it seen in today’s population?

Autism: Describe the following for autism : the heredity patterns, pedigree does the disease/ disorder, Symptoms,Treatment and Incidence

Genetic disorders Complete the following statements to describe several genetic disorders and their symptoms. Choices can be used more than once. The disorder called causes blue-colored skin, sickle-cell disease osteogenesis imperfecta The disorder called that leads to weakened, brittle bones. causes defective collagen methemoglobinemia autosomal dominant The disorder called causes abnormally thick mucus in the bronchial tubes and pancreatic ducts. autosomal recessive The disorder called leads to progressive cystic fibrosis degeneration of neurons in the brain. alkaptonuria The disorder called causes urine to be black. Huntington disease acer %23 24 & 4 8. 9. e y u < 6

Jonah and Jana are siblings. Jonah has the genetic disorder cystic fibrosis, caused by inheriting one copy from each parent of a mutation in the CF gene. Jana does not have cystic fibrosis. Which of the following statements is/are true? (Select all that are true)   a)Jana does not have the gene that when mutant causes cystic fibrosis. b)Jana has the gene that when mutant causes cystic fibrosis. c)Jana has two copies of the allele that causes cystic fibrosis. d)Jana does not have two copies of the allele that causes cystic fibrosis.

Using the symptoms presented, research online to determine the nature of the disorder, its mechanism (what causes the disorder) and also any complications and treatment options that may exist.   A 24-year old patient presents with the following symptoms:   Presents as normal external male Close examination reveals small testes Gynecomastia (development of breasts) Genetic karyotyping revealed XX Further genetic testing determines the patient is SRY-positive Smaller than average in height and weight   Diagnosis:     Mechanism:     Possible Complications and Recommendations: