BIO 315 Exam 1 Questions and Answers

Humans have 23 pairs of chromosomes. Chromosomes 1-22 are best referred to as ______. a. Centromeres b. Autosomes c. Karyotype d. Nuclei e. Sex chromosomes - Answer-B How many DNA molecules would be found in a single chromosome? a. 4 b. 10 c. More than 10 d. 1 e. 2 - Answer-D An alternate form of a gene is called a(n) ________. a. Allele b. Exome c. Genome d. Chromosomes e. mutation - Answer-A The Central Dogma is best described as ______. a. DNA to Protein to RNA b. Protein to RNA to DNA c. Protein to DNA to RNAd. RNA to Protein to DNA e. DNA to RNA to Protein - Answer-E The genome of a person from Mt. Pleasant and the genome of a person from Bombay India are about _____ dfferent. a. 75% b. 50% c. 0.50% d. 5% e. Greater than 90% - Answer-C A person's genes is their ______ and the proteins they make contribute to a person's ________. a. phenotype; genotype b. genotype; phenotype - Answer-B Which of the following is NOT a type of macromolecule? a. Lipids b. Proteins c. Ribosomes d. Carbohydrates e. Nucleic Acids - Answer-C The inborn error of metabolism disease of Lesch Nyhan syndrome is caused by the inability to properly metabolize ______. a. carbohydrates. b. lipids c. purines. d. specific amino acids. - Answer-CWhich of the following is true of the lysosome? a. The lysosome is responsible for adding sugars to proteins. b. The lysosome provides most of the energy (ATP) for a cell. c. The lysosome contains DNA. d. The lysome when not functioning properly is linked to Zellweger's syndrome. e. The lysosome breaks down cellular components. - Answer-E