Q: In a comparison of the stages of meiosis to the stages of mitosis, which stages are unique ... to…
A: Meiosis is a cell division in which diploid cells divide to produce haploid cells. Mitosis is an…
Q: Define the important exception to the concept of homologous pairs of chromosomes ?
A: The complete set of DNA is called a genome. In prokaryotes, the genome is composed of a…
Q: Represent the segregation of chromosomes during Meiosis 1 and Meiosis 2 in normal segregation in…
A: The chromosome is the package of densely packed chromatin fibers with DNA and histone proteins. In…
Q: List two differences between meiosis I and meiosis II.
A: The meiotic division is divided into meiosis 1 and meiosis 2. Gametes required for the sexual…
Q: discuss the Typical meiosis in a triploid organism
A: Meiosis is a type of process of cell division that takes place in a diploid organism that results in…
Q: For a species with a diploid number of 36, indicate how many chromosomes will be present in the…
A: Haploid: Having only one set of chromosomes, i.e, n-chromosomes. Triploid, Tetraploid is a condition…
Q: Consider and individual with 3 pairs of homologous chromosomes labeled as: A/a B/b D/d (where the…
A: The gametes are produced by the meiosis process by which a diploid (2n) organism produce haploid (n)…
Q: If there are 9 chromosome pairs, how many univalents are there at anaphase?
A: The chromosomes are found in eukaryotic cells that is the compact form of DNA. The DNA with histone…
Q: Given a diploid number of 2N=8 and two crossing-over events, trace the fate of these chromosomes…
A: Meiosis is the process of cell division used by germ cells to produce haploid cells so they can…
Q: Explain the Comparison of Meiosis II with Mitosis ?
A: Introduction: A cell divides by two processes- mitosis and meiosis. In mitosis, vegetative cells or…
Q: Compare cohesin function between meiosis I and meiosis II
A: Cohesin is a complex of multiple protein units that is responsible for holding together the sister…
Q: The mating below shows the sex chromosome found in two parents and their resulting offspring. Use…
A: A chromosome is a long DNA molecule with part or all of the genetic material of an organism.
Q: Distinguish anaphase of mitosis from anaphase I of meiosis.
A: The cell cycle is the series of events that takes place in the cell that results in the duplication…
Q: Explain why meiosis leads to significant genetic variation while mitosis does not.
A: Introduction Cytology refers to the study of cell such as cell morphology, physiology etc. As we…
Q: Define the Protein structure that forms between the homologous chromosomes of prophase I of meiosis…
A: The synaptonemal complex (SC) is a protein structure that forms between homologous chromosomes (two…
Q: The repeat expansion appears to occur during meiosis but not mitosis. Why mightthis be true?
A: Repeat expansions refer to the duplication of a single codon extensively. They are a type of dynamic…
Q: Illustration of stages in Meiosis 1 with 10 chromosomes, explain briefly
A: Meiosis is the cell division process that involves division of a diploid (2n) mother cell and…
Q: Briefly explain why there is no interphase in between Meiosis I and Meiosis II.
A: Interphase is a transition stage concerned with the growth and replication of DNA. Once meiosis…
Q: Name and describe two birth defects resulting from nondisjunction of autosomes and two from…
A: Nondisjunction of chromosomes:- Non disjunction means failure of the paired chromosomes to separate…
Q: Briefly explain why sister chromatids remain together in anaphase I but separate in anaphase II of…
A: Cell is the structural and functional unit of life. When a parent cell divides into two or more…
Q: Discuss about Comparison of the main features of mitosis and meiosis.
A: The cell is the basic structural and functional unit of the body. It is responsible for various…
Q: Explain why the daughter cells produced by meiosis NEED to be genetically different from each other,…
A: All the events occur during cell division through which a cell divides into two daughter cells is…
Q: What are chromosomal disorders? Also gives a suitable example.
A: The chromosomes are thread-like structure located in the nuclei of both plant and animal cells. They…
Q: Describe the consequences of nondisjunction during meiosis
A: Non-disjunction occurs when the chromosomes do not separate properly, leaving gametes with one…
Q: Can I see the full diagram for the mitosis and meiosis drawing? And how to do it? The one posted…
A: Following are the steps of Mitosis:
Q: (a) Draw a pair of acrocentric homologous chromosomes as they would appear in Gz Indicate…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: Could nondisjunction occur during mitosis? Compare and contrast the likely consequence of…
A: Mitosis is an equational division where identical daughter cells are produced having the same…
Q: Explain how the separation of homologous chromosomes during meiosisaffects the appearance of…
A: DNA replication with the single round is followed by successive rounds of nuclear divisions during…
Q: If an organism has a haploid number of three, how many tetrad structures will align on the…
A: If an organism has a haploid number of three, how many tetrad structures will align on the…
Q: Within the sperm and egg cells of a frog, there are 13 chromosomes. What would be the diploid #?
A: A frog gamete has 13 chromosomes.
Q: explain the difference between anaphase in mitosis and anaphase (1 and 2) in meiosis.
A: Mitotic cell division is a process where cell divided into two with same or equal number of…
Q: Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an…
A: In chromosomal duplication, some of the part of chromosome has been doubled up. In duplication, the…
Q: Explain the genetic consequences of chromosomal configuration at different stages of meiosis.
A: There are few important points about meiosis are as follows ; We know that meiosis is a specialized…
Q: Explain why the products of meiosis may not be genetically identical, whereas the products of…
A: Cell is a basic membrane-bound unit and it is often called as the basic building blocks of all…
Q: If the amount of DNA in a diploid cell during G1 phase prior to meiosis I is 8 pg, how much DNA…
A: The G phase is a period of the cell cycle in which the cell grows and prepares for DNA replication.…
Q: if a species of animal has 18 chromosomes in its diploid cells (2n=18). Describe what the metaphase…
A: The number of chromosomes in the metaphase of mitosis would be 18 as 2n is 18. In meiosis 1 - 18…
Q: When does synapsis between homologous chromosomes occur? A. prophase I of meiosis B. prophase II of…
A: Step 1 During the pairing of the homologous chromosome, ends of homologous chromosomes in contact…
Q: If a cell has a diploid number of twelve (2N = 12) before meiosis, how many chromosomes will be in…
A: The process by which two sets of chromosomes migrate in the same pole during segregation (gamete…
Q: Identify the key events during meiosis that result in a 50% reduction in the amount of genetic…
A: Cell division is the biological process that results in the formation of two or more identical…
Q: Consider a diploid organism in which the somatic cell chromosome number is 42. Assume cytokinesis to…
A: Cell division is an important process which helps to keep the cells growing in number. This enables…
Q: With 46 chromosomes in a human diploid cell, how many chromosomes come from the person’s mother and…
A: A haploid cell has one complete set of chromosomes.
Q: Illustration of stages in Meiosis 2 with 10 chromosomes, explain briefly
A: Meiosis is a type of cell division that occurs in sex cells at the time of gamete formation. It…
Q: Meiotic nondisjunction is much more likely than mitotic nondisjunction.Based on this observation,…
A: Cells are the basic structural and functional unit of the organism. Cell division is the process in…
Q: Which of the following statements is an incorrect description of the processes of mitosis or meiosis…
A: Answer:
Q: Human cells normally have 46 chromosomes. For each of the following stages, state the number of…
A:
Q: discuss briefly The genetics of triploidy
A: Triploidy is a rare chromosomal abnormality. It is the presence of an additional set of chromosomes…
Q: Identify at least two key differences between mitosis and meiosis
A: Mitosis and meiosis are two modes of cell division.
Q: Chewbacca from Starwars is a part of a species that has 64 chromosomes for its diploid number. What…
A: Chromosomes are the specialized structures that carry the genetic information/genetic material for…
Q: explain how the Law of Segregation and the Law of Independent Assortment relate directly to…
A: Inheritance bis basically a phenomenon which evaluates how the genes bearing particular characters…
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:
Briefly explain what 2n=12 means in terms of mitosis and meiosis.
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- What are the major differences between mitosis and meiosis? Explain this both in terms of the different steps of each event and with regards to the final products of each event. Remember to mention the events which are unique to meiosis and why they are significant.The diploid chromosome number of an organisms is 8. How many of each of the following are present in each cell at the stage of mitosis and meiosis indicated?A certain species of animal has 18 chromosomes in its diploid cells (2n=18). Describe what the metaphase chromosome arrangement would look like for this species in each of the following stages: mitosis, meiosis I, and meiosis II
- For an organism with 3 pairs of chromosomes (6 total chromosomes, 2n = 6), draw chromosome diagrams for the following phases of meiosis: prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II & telophase II. Be sure to draw the correct number of chromosomes and the correct number of chromatids per chromosome. Use a different color to represent each chromosome type (for example, use blue to indicate all copies of chromosome 1, red for all copies of chromosome 2, and green for all copies of chromosome 3).Sketch a comparison of Metaphase Mitosis and Metaphase I Meiosis (diploid:8 chromosomes n=4) - Be sure to number the chromosomes and use a “P” for paternal and “M” for maternal.if a species of animal has 18 chromosomes in its diploid cells (2n=18). Describe what the metaphase chromosome arrangement would look like for this species in each of the following stages: mitosis, meiosis I, and meiosis Il
- Complete the following table for the number of chromosomes and chromatids per cell during the different stages of meiosis II for a 2n = 6 organism. NOTE: For telophase, consider the number of chromosomes/chromatids per cell after cytokinesis. Meiosis II #chromosomes/cell #chromatids/cell Prophase II Metaphase 11 Anaphase II Telophase IIA Diagrammatic Comparison of Mitosis and Meiosis Name: Draw chromosomes in the following cells to represent the various stages of mitosis and meiosis for an organism with a diploid number of 4. Label your diagrams with descriptions of the chromosomes and the key events that are occurring during this stage of the process. Mitosis Interphase Prophase Metaphase Anaphase Telophase OOOIn humans, each cell normally contains a diploid (2n) chromosome number of 46. Say that a human body cell and sex cell will undergo mitosis and meiosis respectively, provide the number of chromosomes in each cell for every stage. Stage of Mitosis Number of Stages of Meiosis Number of Chromosomes in Chromosomes in One Cell One Cell Prophase 2n = Prophase 1 2n = Prometaphase 2n = Prometaphase 1 2n = Metaphase 2n = Metaphase 1 2n = Anaphase 2n = Anaphase 1 2n = Telophase and Cytokinesis Telophase 1 and Cytokinesis 2n = n = Prophase 2 Prometaphase 2 n = Metaphase 2 n = Anaphase 2 = u Telophase 2 and Cytokinesis n =
- If an organism’s somatic cell has 2n=8, what will be the chromosome number of its gametes (undergo meiosis I and II)?In a turtle species, a diploid cell in the G1 phase of the cell cycle contains 22 picograms of DNA (picogram is a measure of the total mass of the DNA present). How much DNA is present in a cell of the same species at prophase II of meiosis (prophase of the second meiotic division)?An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.