Concept explainers
The process of binary fission begins with a single mother cell and ends with two daughter cells. Would you expect the mother and daughter cells to be genetically identical? Explain why or why not.
To review:
Whether mother and daughter cells are genetically identical when they areformed by binary fission.
Introduction:
The process of reproduction in which offspring are produced by a single parent or a single organism where there is no need forfusion of the gametes, is known as asexual reproduction. Asexual reproduction mainly takes place in single-cell organisms, such as algae, bacteria, and fungi.
Explanation of Solution
Binary fission is the method of asexual reproduction in prokaryotes, through which new organisms are produced, that are genetically identical to the parent organism.In the process of binary fission, the DNA (deoxyribonucleic acid) within the cell is replicated, the copies then slide to opposite terminals of the cell in an energy-dependent process.
The cell elongates and equatorial plane of the cell contracts, whichsegregates the cell’s plasma membrane, following which, new cells are generated which constitute exactly the same genetic material.Thus, daughter cells are generated from a single parent cell and have same genetic material as well as cell components, so, theyare genetically identical. However, they are identical when the mutations are not considered.
Therefore, it is concluded that mother and daughter cells are genetically identical when they are generated by binary fission because they shareidentical copies of genetic material from a mother cell, provided that the mutations did not take place during replication.
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Chapter 3 Solutions
Genetics: Analysis and Principles
- Mitosis is used to make more body cells while meiosis is only used to make gametes for sexual reproduction. Use the diagram to identify one similarity and one difference between mitosis and meiosis. Your answer must specifically refer to this diagram. [i.e. say what specific cells in the diagram show the similarity or difference] Mitosis Parent cell Meiosis Parent cell DNA replicates DNA replicates 2 daughter cells 2 daughter cells 4 daughter cells U.S. National Librany of Medicine (Level 3) tv 6 MacBook Air DII DD 888 F8 F9 F10 F11 F4 F5 F6 F7 F2 F3 #3 $ % 3 4 9. 7 8 E R Y D F G H J K C V %3D V Barrow_forwardMitosis is used to make more body cells while meiosis is only used to make gametes for sexual reproduction. What would be a problem if an organism tried to use mitosis for sexual reproduction instead of meiosis? Mitosis Parent cell Meiosis Parent cell DNA replicates DNA replicates 2 daughter cells 2 daughter cells 4 daughter cells U.S. National Library of Medicine (Level 3) 26,426 étv 6 MacBook Air 80 DII F5 F7 F8 F9 F10 F11 F2 F3 # $ 3 4 9. 7 8 9 E Y D J K C V V Barrow_forwardIn a diploid cell, two homologous chromosomes are: A) similar , but from two different species B) mirror images of each other C) similar, but from two different people D) identical to each other E) copies of each otherarrow_forward
- Mitosis is used to make more body cells while meiosis is only used to make gametes for sexual reproduction. What would be a problem if an organism tried to use mitosis for sexual reproduction instead of meiosis? Mitosis Parent cell Meiosis Parent cell DNA replicates DNA replicates 2 daughter cells 2 daughter cells 4 daughter cells U.S. National Library of Medicine (Level 3) étv MacBook Air DD 80 888 F7 F9 F10 F2 F3 F4 FS F6 & #3 3 $ 4 5 9. 7 8 T Y P D F K L C V M Varrow_forwardlet's imagine a giraffe whose diploid is 30. 1)Under what circumstances would the giraffe go through a process of mitosis. 2) what will be the final result of this mitosis for the giraffe? (# of cells + # of chromosomes per cell)arrow_forwardif a parent cell going through mitosis starts with 22 chromosomes, how many chromosomes will be in the daughter cells? a) 11 b) 15 c) 22 d) 44arrow_forward
- Describe how and where each of the following terms applies to mitosis, meiosis, or both: (1) replication; (2) pairing; (3) separation.arrow_forwardIf there are 24 chromosomes in a somatic cell in the Gap 1 of the cell cycle, what would be the diploid number of chromosomes for this organism? Question 6 options: a) 48 b) 12 c) 24 d) 35arrow_forwardcell type: 9) Label the figure below. Chromosome number: cytokinesis by: division type: А- В- С- D- E- the halves the number of chromosomes, and at the same time, stage. The result is 10) daughter cells event that causes genetic diversity takes place in called (n? 2n?). An organism with two of each kind of chromosome is said to be: (3) tetraploid (1) haploid (2) diploid (4) polyploid. In multicellular organisms, mitosis results in: (1) reproduction (2) growth and repair (3) sperm and egg production (4) fertilization. If an organism produced an egg that had 20 chromosomes, the body cells of that organism should have: (1) 10 chromosomes (2) 20 chromosomes (3) 30 chromosomes (4) 40 chromosomes. 11) is what helps us grow and is why we are all unique! Human female karyotype contains .... (number) pairs autosomal and sex chromosomes. separate to go opposite poles in Anaphase in mitosis, while in Meiosis in AnaphaseI. (how many?) 12) If a diploid parent cell with 8 chromosomes (2n=8)…arrow_forward
- This form of cell division involves segregation of sister chromatids. (Choose one answer.) O A) mitosis only O B) meiosis only C) both mitosis and meiosis D) neither mitosis or or meiosis CS Scanned with CamScannerarrow_forwardA cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules (chromatids) will be found per cell when this original cell progresses to the following stages? a) G2 of interphaseb) Metaphase I of meiosisc) Prophase of mitosisd) Prophase II of meiosise) After cytokinesis following mitosis f) After cytokinesis following meiosisarrow_forwardHow many daughter cells are produced in mitosis? A) 2 B) 4 C) 8 D) Nonearrow_forward
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