Introduction: Eukaryotic cell cycle involves a series of changes including growth, replication, and division and this results in the production of new cells. During interphase, the cell prepares itself for the process of cell division. Interphase is composed of many phases which prepare the cell for the process of cell growth and division.
Answer to Problem 1TY
Correct answer: The chromosomes are replicated in the “S phase” of the cell cycle. Hence, the correct answer is option b.
Explanation of Solution
Reason for correct answer:
Interphase of the eukaryotic cell cycle is composed of many phases. The cell cycle involves the growth, division, and replication of chromosomes. This ultimately results in the production of the new cells through cell division. Replication of chromosomes to form sister chromatids takes place during S phase of the interphase. A cell will have twice the number of chromatids compared to the number of chromosomes present in the G1 phase.
Option b is given as “S phase”.
Replication of chromosomes takes place in the S phase of the cell cycle. Hence, the correct answer is option b.
Reason for incorrect answer:
Option a is given as “G1 phase”.
In the G1 phase, the cell may become committed for the process of cell division. The process of cell growth also occurs during this phase. A cell may accumulate certain molecular changes that will guide the cell to advance through the rest of the cell cycle. Hence, option a is incorrect.
Option c is given as, “M phase”.
M phase is defined by the presence of mitosis and cytokinesis. During mitosis, the mother cell is divided into two daughter cells and each daughter cell receives the same complement of chromosomes. Hence, option c is incorrect.
Option d is given as “G2 Phase”.
In addition to cell growth, proteins necessary for the process of cell division are synthesized in G2 Phase. Hence, option d is incorrect.
Option e is given as, “none of the above”.
G1, S, and G2 phase make the interphase of the eukaryotic cell cycle. The process of replication of chromosomes takes place during the S phase of the cell cycle. Hence, option e is incorrect.
Hence, the options a, c, d, and e are incorrect.
The process of replication of chromosomes takes place in the S phase of the eukaryotic cell cycle.
Want to see more full solutions like this?
Chapter 15 Solutions
Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
- Identify the indicated cavity (Fucus). a. antheridia b. conceptacel c. receptacle d. oogonium e. none of thesearrow_forwardIdentify the indicated structure (Saprolegnia). a. antheridium O b. oospore c.sperm d. auxospore e. tetraspore Of. zygosporearrow_forwardUsing information from the primary literature (several references have been provided as a starting point below) please answer the following question: Based on your review of the literature on rewilding, what are the major scientific pros and cons for rewilding? Please note that the focus of this assignment are the (biological) scientific issues associated with rewilding. As will be discussed in class, there are a number of non-scientific issues involved or implicated in rewilding, all ultimately affecting the public acceptability of rewilding. Although these issues are important – indeed, critical – in this assignment you should focus on the biological science issues and questions. Details: You must enumerate at least two pros and at least two cons. Your answer should be no more than 500 well-chosen words, excluding references. Think carefully about how best to organize and structure your answer. Aim for high information density: say a lot, but say it succinctly. Recall Nietzche’s…arrow_forward
- Using information from the primary literature (several references have been provided as a starting point below) please answer the following question: Based on your review of the literature on rewilding, what are the major scientific pros and cons for rewilding? Please note that the focus of this assignment are the (biological) scientific issues associated with rewilding. As will be discussed in class, there are a number of non-scientific issues involved or implicated in rewilding, all ultimately affecting the public acceptability of rewilding. Although these issues are important – indeed, critical – in this assignment you should focus on the biological science issues and questions. Details: You must enumerate at least two pros and at least two cons. Your answer should be no more than 500 well-chosen words, excluding references. Think carefully about how best to organize and structure your answer. Aim for high information density: say a lot, but say it succinctly. Recall Nietzche’s…arrow_forwardNow draw a rough sketch of what the control data might look like if in addition to the specific binding, there was also a considerable amount of nonspecific binding (again using a normal dose/response curve) (do % total bound ligand vs concentration)arrow_forwardWhat are functions of cuboidal cells in the kidney? Select all that apply. Concentration of gases Dilution of chemicals Secretion of molecules Nutrition to tissues Support of tissues Absorption of moleculesarrow_forward
- question1 In plants, epithelial tissue is only found as the outermost cell layer and acts as a barrier. In humans, epithelial tissue is found inside the body as well as on the surface. What function(s) does/do epithelial tissue carry out in humans? Select all that apply. Waste storage Filtration Oxygen transport Protection Diffusion Osmosis Absorptionarrow_forwardWhat words best describes this organism? a. Unicellular/nonmotile Ob. unicellular/motile c. colonial/nonmotile d. colonial/motile e. multicelluar O f. siphonous g. none of thesearrow_forwardIdentify the phylum or class. a. Euglenophyta b. Dinoflagellata c. Bacillariophyceae d. Oomycetes e. Phaeophyceae O f. Myxomycota g. Xanthophyceae ○ h. Chrysophyceae i. Dictyosteliomycota O j. Rhodophyta Ok. Chlorophyceaens I. Charophyceaensarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning