BSC 1005 Lab Final Exam - Questions with Verified Answers

BSC 1005 Lab Final Exam - Questions with Verified Answers How many daughter cells are produced from one parental cell after meiosis and cytokinesis? three four one two Sometime a process known as non-disjunction occurs and a gamete has an extra or missing chromosome. If a person has an extra chromosome 21 it is known as __________. This person does survive into adulthood. Edwards Syndrome Down's Syndrome Patau's Syndrome The "Code of Life" is written in what molecule RNA DNA Proteins Lipids What percentage of your genes do you share with a banana? about 90% none about 10% about 50% about 1% How many nucleotide base pairs (represented by the letters A, T, C, and G) are in the human genome? 3 billion base pairs 100,000 base pairs 1000 base pairs 1 billion base pairs 1 million base paris Name of the respiratory disease caused by just THREE missing nucleotide base "letters" in a person's genome, that deletes an amino acid called Phenylalanine from the protein, and causes a membrane transport protein not to be made properly. Klinefelter Syndrome Cystic Fibrosis Down's Syndrome Tay Sacs Hemophillia T/F The BRCA1 and BRCA2 genes (now made famous by Angelina Jolie!) found in EVERY person. True How does a DNA mutation ("misspelling") cause a disease, such as Tay-Sachs? Check all that apply this enzyme is usually found in the lysosomes it causes blood not to clot correctly children are unaffected a protein enzyme is not made to break down lipids the parents don't usually know they are carriers of this gene, unless they get a genetic test What does extracted DNA look like, to the naked eye double helix we could not see it with a naked eye looks like a spiral white slime Which base is found in RNA but not in DNA? A T G U How old is the Earth? 4.5 billion years 4.6 trillion years 4600 years 4.5 million years How old are the oldest fossils found to date?