Q: An organism has a diploid number of 20 in a primary oocyte. a. How many tetrads are present in the…
A: Oogenesis is a kind of gametogenesis. It produces four haploid gametes (egg) from single parent…
Q: Down Syndrome (trisomy 21) is caused by an error in meiosis which results in the presence of three…
A: Meiosis and mitosis Meiosis is the reductional division in which the parental cells divide to form a…
Q: If both chromatids in meiosis II move to the same pole in one of the two dividing cells, what will…
A: Answer: MEIOSIS = This is the reductional division occurs in germ cells producing n ploidy cells. It…
Q: Which of the following is a TRUE statement regarding the outcome of meiosis? A. In meiosis,…
A: Meiosis Meiosis is a type of cell division in sexually reproducing organisms, resulting in four…
Q: imagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a…
A: Meiosis It is a kind of cell division where the number of chromosome reduced.
Q: What is happening during this phase of meiosis? A.)Mitosis is complete and 4 diploid daughter cells…
A: Meiosis is a type of cell division which occur in germ cells to produce the gametes, such as sperm…
Q: What cellular process is responsible for genetic recombination? a. The independent alignment of…
A: Answer is d.) Crossing over between homologoues.
Q: 18. ХXY a. Which of the following terms describes the process of homologous chromosomes failing to…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Which of the following correctly describes the gametes that will form as a result of nondisjunction…
A: Meiosis is a reductional division. It reduces the chromosome number to half.
Q: Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the…
A: Introduction A Micrograph, Also Known As A Photomicrograph, Is A Photograph Or Digital Image That…
Q: Crossing over.... a. leads to the exchange of material between homologous chromosomes in meiosis.…
A: Crossing over occurs in the pachytene stage of meiosis 1. Recombination of genes occurs because of…
Q: 3 00 kl c. nondisjunction d. meiosis I O e. meiosis II enetically male 8-week-old fetus that…
A: In 1st diagram pairing of homologous chromosomes takes place. Chromosome number is 4 In 2nd…
Q: An organism has a diploid number of 16 in a primary oocyte. (a) How many tetrads are present in the…
A: Meiosis causes a reduction in chromosome number by half. It involves the recombination and pairing…
Q: Your father received 23 chromosomes from his mother and 23 chromosomes from his father. How many of…
A: As per the guidelines we are entitled to do one question at a time. So, I am providing a solution…
Q: The four daughter cells pictured below resulted from: A) normal mitosis B) fertilization with a…
A: Meiosis is a type of cell division that results in the formation of four new daughter cells with…
Q: At the end of meiosis in humans, four gametes are produced that are: A. Genetically identical to…
A: Meiosis is a two-step cell division process that helps to produce sex cells or gametes. This is a…
Q: Do you know of any genetic diseases or disorders that result from errors in mitosis or meiosis? How…
A: Introduction: Mitosis and meiosis are processes and fundamental stages of cell division and cell…
Q: following Mitosis phase: a. prophase b. metaphase c. anaphase
A: Number of chromosomes in mitosis phase is as follows : Prophase : 46 chromosomes Metaphase : 46…
Q: During oogenesis in an animal species with a haploid number of 6, one dyad undergoes nondisjunction…
A: Introduction oogenesis is the production or development of an ovum .Oogenesis is that the method of…
Q: For every one cell that goes through meiosis I and meiosis II a)four haploid sperm or four haploid…
A: Cell division is a process by which a cell divides into two or four daughter cells. The cell…
Q: If meiosis of a diploid organism produces haploid cells, then how is a diploid offspring generated?…
A: Diploid organism means the organism with 2 sets of genome.
Q: What type of cell is observed using the onion root tip? b. Between Mitosis and Meiosis, what type do…
A: Cell division is an important process that helps to keep the cells growing in number. This enables…
Q: The somatic cells of an allotetraploid containa. one set of chromosomes from four different…
A: Chromosomes are thread-like structure situated inside the nucleus of plant and animal cells. Each…
Q: Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced…
A: Inactivation of topoisomerase II, separase, or condensin causes 'nondisjunction". Separase breaks…
Q: During which stage of meiosis does crossing over occur? A. Prophase I B. Prophase II C.…
A: Mitosis and meiosis are nuclear division processes that occur during cell division. Mitosis is a…
Q: In which stage of meiosis do homologous chromosomes separate? Group of answer choices A. anaphase…
A: Meiosis is a process of reduction division that leads to production of gametes. There are two phases…
Q: A diploid organism produces four gametes from one parent cell through the process of meiosis. Two…
A: Meiosis is made up of two cell divisions occurring in succession in sexually producing organisms and…
Q: The most notable differences between gamete formation in most animals and gamete formation in plants…
A: Sexual reproduction is considered a type of reproduction, where the new organisms are created by the…
Q: 2. Triple X syndrome a. What is the genetic abnormality that occurs? b. What are some symptoms? C.…
A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…
Q: When does crossing over usually occur, and what is the endresult?a. It occurs during prophase of…
A: Linkage is the association of the genes on the same chromosome. It is the proneness of DNA sequences…
Q: In meiosis, DNA replicates during a. prophase I. b. both prophase I and prophase II. c. prophase…
A: Introduction:- Meiosis is the divison occuring during gamete production.This is also known as…
Q: In which phase of meiosis does crossing over occur? Group of answer choices A. prophase I B.…
A: Meiosis A type of cell cycle which only takes place in the reproductive cell. By meiosis gametes…
Q: There are 56 chromosomes in a mature elephant cell. If one of the elephants cells responsible for…
A: Mitosis: In all eukaryotes Equational division (Diploid (2n) => Diploid (2n)) Meiosis: In…
Q: 1. Gregor Mendel developed the idea of independent assortment based on his work with dihybrid…
A: Given: Gregor Mendel developed the idea of independent assortment based on his work with dihybrid…
Q: ondisjunction during meiosis I b) nothing went wrong c) nondisjunction during meiosis II d)…
A: Meiosis is the the cell division that primarily occurs at the time of reproduction that is it helps…
Q: Which of the following statements about homologous chromosomes is accurate? Select all that apply.…
A: The homologous chromosome is the term that refers to two pieces of the chromosome that carry the…
Q: During which stage(s) of meiosis do you expect to find tetrads? Select one: a. Prophase I and…
A: It is a process where a single cell divides to produce four cells containing half the original…
Q: Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced…
A: Non-disjunction It refers to the event when chromosomes fail to separate correctly. This results in…
Q: . How does meiosis I differ from mitosis? What about meiosis II from mitosis? difference between…
A: 1.DIFFERENCE BETWEEN MEIOSIS 1 FROM MITOSIS:- a) mitosis occurs continously in the body or somatic…
Q: e are 46 chromosomes in humans, of which A. any 23 chromosomes are from father and remaining from…
A: Humans have forty-six chromosomes in every diploid cell. Among those, there are 2 sex-determining…
Q: If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The…
A: A chromosomal mutation may occur during anaphase I of meiosis cell division, where chromosomes fail…
Q: Sketch a series of diagrams showing each of the following, making sure to end each series with…
A: Cell division is a process known as meiosis. Four haploid cells are supposed to define that they are…
Q: In fruit flies, chromosomal crossing over does not occur in meiosis in males, whereas crossing over…
A: Crossing over can be defined as the exchange of genetic material between the non-sister chromatids…
Q: In spinach 2n=12, how many different chromosomal combinations can be produced in spinach gametes…
A: Meiosis is a two-step process, in which the number of chromosomes is halved - n so that when two…
Q: Which of the following occur during anaphase II of meiosis?
A: Mitosis is an equational division that leads to the formation of two genetically identical daughter…
Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
28. ...... the process where portions of homologous chronosomes exchange segments occurs in
A. Meiotic overlap, tetrad
B. Clonal exchange, meiosis I
C. Homologous exchange, mitosis
D. Crossing over, meiosis II
E. Independent assortment, meiosis II
F. Crossing over, meiosis I
Step by step
Solved in 2 steps
- Tetraploidy may result from: a. lack of cytokinesis in meiosis II b. nondisjunction in meiosis I c. lack of cytokinesis in mitosis d. nondisjunction in mitosis in the early embryo e. none of theseWhat is the significant events of the stages in Meiosis? (explain in 2-3 sentences)a. Prophase Ib. Metaphase Ic. Anaphase Id. Telophase Ie. Prophase IIf. Metaphase IIg. Anaphase IIh. Telophase IIMITOSIS MEIOSIS 1. Haploid cells are produced 2. Crossing over takes place 3. One division 4. Diploid cells 5. Formation of tetrads 6. Somatic cells 7. For sexual reproduction 8.2 daughter cells 9. Two divisions 10.Separation of homologous chromosomes 11.Daughter cels with chromosomes identical to parent cell 12. For repair of damaged tissue 13 Cross-linkage of genes 14 Sex cells 15 Daughter cells not identica to the parent cell O 0 O 0 O OO0 O o o O 0 0 o 0 O O O O O
- Which of the following statements is an incorrect description of the processes of mitosis or meiosis in a diploid organism? Multiple choice (one asnwer is correct) 1.Crossing over of chromosomes takes place in meiosis I but not in mitosis. 2.Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II. 3.None of the above 4.Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells. 5.Homologous chromosomes align on the metaphase plate in meiosis I but not in mitosis.. If you were asked to complete the table with the correct answer, which of the following table would you chose? А. CHITERIA MITOSIS MEIOSIS 1. Na. of nuciear dimsion 2. Syriapaia/crossing over ECentromere of suster chromatids atanaphase Preseut separates Fresent M-attached/M-separates Haploid S. Na of chromosomes per daughter cell 6 Function Diplaid Growth. Rapair Growth. Repair and Reproduction B. CRITERIA MITOSIS MEIOSIS TNo, af nuclear darinion Synapsin/croing over 3. Centromere af sister chromatids at anaphase Absetit sepiarates Fresent -attached FNo. of daughter cells 5. No. of chromosomes per daughter cell 6 Function Diploid Haploid Growth, Eapair Growth, Repair and Reproduction C. CRITERIA MITOSIS MEIOSIS 1. No. of muclear division 2. Synapsis/crossing over 3. Centromereof sister chromatids at anaphane 4 Na, af daughter cells 5. No. of chromosoetes per daughter cell 6 Punction Absent Present separates MI-attached/Mli-separates Haploid Diploid Gruwth, Repair Reproduction D.…A. 1. Division of the cell nucleus, results in two daughter nuclei, each have the same number of chromosomes as the parent nucleus. 2. One two identical halves of a duplicated chromosome. 3. Fusion of haploid (n) gametes; results in the formation of a diploid (2)n zygote. 4. The breaking and rejoining of homologous (non sister) chromatids during early meiotic prophase I, resulting in an exchange of genetic material. 5. The diploid (2n) cell that results from the union of haploid (n) gametes in sexual reproduction. 6. The condition of having one set of chromosomes per nucleus. 7. The complex of DNA, proteins and some RNA that makes up eukaryotic chromosomes. 8. Structures in the cell nucleus, composed of chromatin and containing the genes. 9. An X-shaped site in a tetrad marking the location where homologous chromatids previously underwent crossing over. 10. A sex cell; in plants and animals, an egg or sperm. 11. Type of reproduction in which two gametes (usually, but not necessarily,…
- All of the following could be deduced from the table except CRITERIA MITOSIS MEIOSIS 1. No. of nuclear division 2. Synapsis/crossing over 3. Centromere of sister chromatids at anaphase 4 No. of daughter cells 5. No. of chromosomes per daughter cell 6 Function I. The mother cell in mitosis divides only once, while the mother cell in meiosis divides twice. II. Synapses only takes place in meiosis. III. Centromere of sister chromatids at anaphase separate in both mitosis and meiosis. The number of daughter cells in mitosis is 2, while meiosis is 4. V. Mitosis is haploid, meiosis is diploid. A. I, II, and III B. I, III, IV and V C. I, Il and IV D. I. II. II. V IV, • If you were asked to cormplete the table with the correct answer, which of the following table would you chose? А. CHITERIA MITOSIS MEIOSIS 1. No. of nuciear dimaion Synapais/cossing ove 3. Centromere of NIuzer chromatids atanaphase No. of daaghter cells PTESEnt MI-anached separates Present separates Haploid 5. No of…You are to compare mitosis with meiosis I and II for a diploid cell that is 2N = 46 chromosomes. (2N = 46)e] Mitosis Meiosis I and II How times are the chromosomes a. b. duplicated/replicated? d. at the end of meiosis Number of daughter cells at the end of division C. f. meiosis I and II How many times does the cell divide? Choice: 0, 1 or 2? е. How many chromosomes are in h. end of meiosis I and II each daughter cell at the end of division if 2n = 46? g. How the chromosomes lined up during metaphase (not the j. meiosis I only i. middle)? L. meiosis I only What separates during Anaphase? k. When does crossing over occur? m. n. When does independent O. assortment occur? p.1. In 3 sheets of bond paper, draw the mitosis, meiosis 1 and meiosis 2. 2. Fold each sheet into four and draw the mitosis, meiosis 1 and meiosis 2 on each sheet.'s folds. 3. If the mother cell has 10 chromosomes, draw the stages of mitosis, meiosis 1 and meiosis 2 using blue and red pencils only for the chromosomes.
- The end products of meiosis I are Ca. 2 diploid Cb.2 haploid Cc. 4 haploid cells.14.All of the following could be deduced from the table except CRITERIA MITOSIS MEIOSIS 1. No. of nuclear division 2. Synapsis/crossing over 3. Centromere of sister chromatids at anaphase 4 No. of daughter cells 5. No. of chromosomes per daughter cell 6 Function I. The mother cell in mitosis divides only once, while the mother cell in meiosis divides twice. II. Synapses only takes place in meiosis. III. Centromere of sister chromatids at anaphase separate in both mitosis and meiosis. The number of daughter cells in mitosis is 2, while meiosis is 4. V. Mitosis is haploid, meiosis is diploid. A. I, II, and III B. I, III, IV and V C. I, 1l and IV D. I. II. III. V IV, If you were asked to complete the table with the correct answer, which of the following table would you chose? A. CHITERIA MITOSIS MEIOSIS 1. No. of nuclear dimon Synapais/cossing ove 3. Centromere of NIRter chromatids atanaphase 7No. of daughter cells Present Fresent MI-attachedMuseparates separates Haploid 5. No of…When a nondisjunction event occurs only during meiosis I, the gametes will be 1.partially aneuploid, partially haploid, and partially diploid. 2. all aneuploid. 3. partially aneuploid and partialy haploid. 4. partially haploid and partially diploid.
