Biology Quiz: Cell Cycle & DNA

University:
Lindsey Wilson College
Course:
BIOL 1103 | Principles of Biology
Academic year:

2022
Views:

22

Pages:

3
Author:

Thomas Anderson

Biology quiz (1) Content :- Cell Cycle & DNA Replication (Lectures 9 and 10) (AK) I. Biology Quiz 1 Multiple choice (A-D) Questions 1-15 1)Which of the following correctly defines the semi-conservative model of DNA replication? A- One DNA strand is inherited in each new daughter cell B- One parent is used to make two new strands C- Two old strands inherited in each daughter cell D- Parent DNA in conserved in one of the two daughter cells 2)Which of the following is important in cell cycle control system? ABCD- Cyclin concentration and CDK activity A clock CDK activity alone High cyclin concentration 3)In what direction does DNA polymerase add nucleotides during replication? A- 5-3 direction B- 3-5 direction C- Both 3-5 and 5-3 directions D- Depends on DNA direction 4)Which of the following keeps the DNA strands apart while they are being replicated? ABCD- Single strand DNA binding proteins Helicase Topoisomerase Ligase 5)What are sister chromatids? ABCD- Duplicated chromosome Chromosomes in G1 DNA synthesis Chromatin 6)Which of the following enzymes is responsible for DNA proofreading ? ABCD- Helicase DNA polymerase Primase Topoisomerase 7)The Okazaki fragments are joined together by which of the following enzymes? ABCD- DNA ligase DNA polymerase Primase RNA polymerase 8)At which phase of the cell cycle is DNA synthesized? ABCD- S phase Interphase M phase Metaphase 9)Which of the following can trigger apoptosis? ABCD- Death signals Protein synthesis DNA replication Necrosis 10)Which of the following is not part of interphase of the cell cycle? A- G1 phase B- M phase C- G2 phase D- S phase 11)In multicellular organisms, which of the following processes do NOT depend on cell division? A- Signal transduction B- Development from a fertilized egg C- Growth D- Repair of tissues 12)Which of the following are always present throughout the cell cycle? ABCD- Cyclin-dependent kinases High concentration of specific cyclins Replicated DNA Cytokinesis 13)Which of the following enzymes correct the overwinding or supercoiling ahead of the replication forks? ABCD- Topoisomerase Helicase Ligase Primase 14)Which of the following is needed in preparation for cell division? A- DNA replication B- Production of identical daughter cell C- Germ cells D- Signal transduction 15)How many origins of replication are found in an eukaryotic chromosome? ABCD- Many origins of replication Only one Depends on length of chromosome Only 3