Biod210 Module 3 Genetics Exam/ Portage Learning Latest Update 2023/2024, Exams of Nursing

Download Biod210 Module 3 Genetics Exam/ Portage Learning Latest Update 2023/2024 and more Exams Nursing in PDF only on Docsity! Biod210 Module 3 Genetics Exam/ Portage Learning Latest Update 2023/2024 Module 3 Exam - Requires Respondus LockDown Browser + Webcam Due No due date Points 100 Questions 25 Available after Dec 16, 2021 at 8:28pm Time Limit 60 Minutes Requires Respondus LockDown Browser This quiz is currently locked. Attempt History Attempt Time Score LATEST Attempt 1 60 minutes 90 out of 100 Score for this quiz: 90 out of 100 Submitted Nov 4, 2021 at 11:09am This attempt took 60 minutes. Correct! False True True or False: Chromosomes are in a condensed form through most of the cell cycle. 2 / 2 pts Question 1 Storage of the information Variation of DNA through mutation 1. histone 2. positively 3. negatively Your Answer: histones positive negative Fill in the blanks: DNA is condensed within the nucleus (cellular compartment) by coiling around (1) proteins. Modification of these (2) charged proteins alters them to become either neutral or negatively charged. Thus, the interaction with (3) charged DNA is interrupted, and the interactions loosen. 6 / 6 pts Question 6 Correct! Correct! Correct! Correct! Correct! Telophase 5 Anaphase 4 Metaphase 3 Prophase 2 S-phase 1 Interphase marks the period of the cell cycle just before active cell division. Label the rest of the cell cycle in order, from 1-5. 10 / 10 pts Question 7 Which of the following is true about anaphase? It marks the longest phase of the cell cycle. Correct! Chromatids undergo disjunction to travel to opposite poles. 2 / 2 pts Question 8 Active DNA replication ensures that duplication is complete before the cycle ends. Cytokinesis helps the cell to divide into two parts containing equal cytoplasm. Correct! Degrade Intertwine Form a covalent bond Separate A chiasma is a point during meiosis at which the non-homologous sister chromatids: 2 / 2 pts Question 9 Which of the following statements is correct? 2 / 2 pts Question 10 1. Y 2. SRY 1. Klinefelter syndrome 2. male Your Answer: klinefelter syndrome male Fill in the blank: The sex disorder that exhibits an XXY phenotype is known as (1) . This disorder is found on the (2) sex chromosome. 4 / 4 pts Question 14 Correct! Correct! Correct! Correct! 8 / 8 pts Question 15 Answer 4: True Answer 3: True Answer 2: True Answer 1: False Indicate whether each of the following statements is True or False. 1. G0 is an actively dividing cell cycle phase. False 2. Cells enter G0 when the environmental conditions are not ideal for survival. True 3. Cells in G0 do not undergo active replication. True 4. When conditions become normal, cells may go back into the cell cycle. True 10 / 10 pts Question 16 Match each of the following terms with the correct description. Correct! Kinetochore Flank the centromere; Correct! Spindle fibers Made of tubulin, provi Correct! Centrioles Cytoplasmic bodies o Correct! Metaphase plate Area where centromer Correct! Cyclins Bind and activate kina Match each of the following terms with the correct description. Correct! Kinases Phosphorylate protein Correct! Cohesin Protein complex form Correct! Histones Hold DNA tightly wrap 8 / 8 pts Question 17 Correct! Mitosis G2 G1 G0 During which phase of the cell cycle do cells become quiescent? 2 / 2 pts Question 22 Correct! Homologous Genderphilial Mating Heteromorphic The X and Y sex chromosomes are known as chromosomes. 2 / 2 pts Question 23 Question 24 0 / 4 pts Why is modification of histone proteins critically important to DNA transcription? Your Answer: so the dna can be transcibed into rna and it has tobe done properly in order to make more proteins Modifications of the histone proteins allow for them to either wrap tightly around DNA or to loosen their grip on DNA. This is very important for transcription because when histones loosen their grip on DNA, it allows access to the transcriptional machinery so that DNA can be transcribed. Conversely, when the histones are tightly wrapped with the DNA, transcription is shut off because the machinery cannot access the DNA within the space. Correct! False True True or false: The eggs of a female undergo meiosis I before she is even born, but they undergo meiosis II after fertilization occurs. 2 / 2 pts Question 25 Quiz Score: 90 out of 100