SCIENCE 101 > EXAM > HS 200 - Unit 8 Quiz ALL ANSWERS 100% CORRECT SPRING FALL-2022 LATEST SOLUTION GUARANTEED GRADE A+ (All)

HS 200 - Unit 8 Quiz ALL ANSWERS 100% CORRECT SPRING FALL-2022 LATEST SOLUTION GUARANTEED GRADE A+

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Which of the following is NOT true of Down syndrome? Question options: 1) It is a chromosomal disorder in which cells have three copies of chromosome 21. 2) All affected individuals experience cognitive delays, but the intellectual disability is usually mild to moderate. 4) The abnormality usually occurs in egg cells, but it occasionally occurs in sperm cells. Question 2 / 2 points The Human Genome Project has estimated that humans have between _______ and genes. Question options: 1) 10,000, 15,000 2) 5,000, 7,000 3) 50,000, 70,000 Question WRONG 0 / 2 points Cystic fibrosis gene has been located on: Question options: 1) chromosome 7 2) chromosome 10 3) chromosome 9 Question WRONG 0 / 2 points Which of the following statements is NOT true about hereditary mutations? Question options: 1) They are present only in a few cells in a body. 3) They are present throughout a person’s life. 4) They are inherited from a parent. Question 2 / 2 points Klinefelter syndrome: Question options: 1) occurs in males, with an extra chromosome 21. 2) occurs in females with 1 extra X chromosome. 3) is characterized by short stature and a broad neck. Question 2 / 2 points In Klinefelter syndrome, there is an addition of an extra X chromosome, which: Question options: 1) is present in all the cells in one of the parents. 2) occurs only in females. 4) is inherited. Question 2 / 2 points In normal development, how many pairs of chromosomes do people have in each cell? Question options: 1) 2 pairs 2) 22 pairs 4) 46 pairs Question 2 / 2 points Genes are defined as: Question options: 1) the basic unit of heredity 2) specific sequences of RNA 3) Entities, which vary in size, maximum length being less than 100 DNA bases, in humans 4) abnormalities of chromosome structure Question 2 / 2 points A gene mutation is when there is: Question options: 1) a temporary alteration in a sequence of DNA 2) a temporary alteration in a sequence of RNA 3) a permanent l alteration in a sequence of RNA Question 2 / 2 0 Which of the following statements is NOT true about Turner syndrome? Question options: 1) Most cases of Turner syndrome are not inherited. points 2) the chromosomal abnormality occurs as a random event during the formation of reproductive cells (eggs and spe the affected person's parents. 3) A child with Turner syndrome will have a single X chromosome in each cell and will be missing the other sex chromosome. Question 2 / 2 1 Early-onset Alzheimer’s disease is inherited in: Question options: 1) An autosomal dominant pattern. 2) An autosomal recessive pattern. 3) An X-linked recessive pattern. 4) An X-linked dominant pattern. points Question 2 / 2 2

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