ETHC 210 EXAM 3 (100% CORRECT) | SCORE 75 OUT OF 75 POINTS : LIBERTY UNIVERSITY

ETHC 210 EXAM 3 • Question 1 3 out of 3 points In order for a child to get the genetic based disease cystic fibrosis which of the following must occur? • Question 2 3 out of 3 points Which of the following is true about Huntington’s disease. • Question 3 3 out of 3 points Cystic fibrosis is caused by a genetic mutation in a: • Question 4 3 out of 3 points A mutated recessive allele can never contribute to disease. • Question 5 3 out of 3 points Achondroplastic dwarfism is considered a lethal genetic syndrome because; • Question 6 3 out of 3 points Which of the following is true about the Jumping Frenchmen of Maine syndrome • Question 7 3 out of 3 points Protein tau can form sticky“tangles” as part of the cause of Alzheimer disease. • Question 8 3 out of 3 points Austrian monk Gregor Mendel primarily worked with what kind of organisms to do his genetic work? • Question 9 3 out of 3 points The “A” and “B” alleles in the ABO blood group are recessive to blood type “O.” • Question 10 3 out of 3 points King George III of England suffered from an autosomal dominant disorder porphyria variegate which caused many symptoms including wild behavior associated with madness. At the genetic level this is an example of • Question 11 3 out of 3 points LDL is the carrier of cholesterol in blood. • Question 12 3 out of 3 points According to widely accepted modern evolutionary ideas mitochondria originated in cells according to; • Question 13 3 out of 3 points The law of segregation states that alleles of a gene: • Question 14 3 out of 3 points Using and understanding pedigrees are important today because they help families identify the risk of transmitting an inherited disease • Question 15 3 out of 3 points The bodies of the Royal Romanovs, the ruling family of Russia in the early 1900s were exhumed in the 1990s and their DNA was sequenced. Geneticists found a variation in the mitochondrial DNA sequence among the royal family members. The variation was explained by the phenomena of: • Question 16 3 out of 3 points A Punnet square follows transmission of alleles and is based on probability. • Question 17 3 out of 3 points Which of the following are true about Marfan syndrome: • Question 18 3 out of 3 points Familial hypercholesterolemia is an autosomal dominant genetic disease wherein the disease carriers cannot take up cholesterol normally so that it builds up in the blood, so that homozygotes for the disease can die in childhood whereas heterozygotes don’t have heart attacks until they are young adults. This is an example of • Question 19 3 out of 3 points A single gene disorder with many symptoms, or a gene that controls several functions or has more than one effect is termed: • Question 20 3 out of 3 points The mitochondrial DNA contains no histones or introns. • Question 21 3 out of 3 points Leber congenital amaurosis and osteogenesis imperfecta are both genetic diseases demonstrating: • Question 22 3 out of 3 points Since osteogenesis imperfecta can be the result of single gene defects in a number of different genes (genetic heterogeneity) parents who carry the defect in different genes from their partner can produce a child with this syndrome. • Question 23 3 out of 3 points Mendel crossed some yellow round pea plants with wrinkled green pea plants. The traits of yellow and round were dominant. In the first generation, the F1 generation all the offspring were; • Question 24 3 out of 3 points The Mitochondrial Eve theory is a theory about: • Question 25 3 out of 3 points A single gene on chromosome 15 confers eye color by controlling melanin synthesis.