BIO 182 Exam 1 – ASU| 67 Questions | With Complete Solutions

base pair? correct answer: different nuclei types in DNA what is a gene? correct answer: What is the purpose of cell division? correct answer: Four events must occur for cell division: 1. Reproductive Signal -initiate cell division 2. Replication 3. Segregation 4. Cytokinesis Binary Fission correct answer: In prokaryotes, binary fission results 2 new cells. Why can't correct answer: Chromosomes? correct answer: wrapped up/ compiled DNA - made of DNA and proteins. Nucleosome Chromatin Chromatin correct answer: uncoiled dna chromosomes correct answer: coiled dna The molecules that make up a chromosome are _________________ and __________________. correct answer: B. DNA; proteins Karyotype correct answer: the number, shapes, and sizes of the chromosomes in a cell. Ploidy correct answer: the number of homologous chromosomes in the cell. Diploid correct answer: one set of chromosomes from each parent - two copies of the genome. - diploid species have matched pairs of chromosomes = homologous chromosomes. Haploid correct answer: the number of chromosomes in a gamete (sperm or egg) only one copy of genome. Homologous Chromosomes correct answer: a pair of chromosomes. Goal of mitosis correct answer: move identical genetic info into 2 new cells. A diploid cell entering mitosis correct answer: - 3 pairs of chromosomes - 2n = 6 G1 phase correct answer: - protein synthesis - takes about 10 hrs. G2 Phase correct answer: preparation for mitosis. needs more proteins to mitosis to go. centrosomes make their way to the north and south pole. S phase correct answer: (DNA synthesis) - DNA is copied before cell division. - centrosomes are replicated. Mitosis correct answer: Goals: Separate replicated DNA