List several ways in which telophase appears to be the reverse ofprophase and prometaphase.

Q: Describe the "folded-fiber" model of the mitotic chromosome.

A: Folded fibre model This model of chromosome was proposed by DuPraw in 1965 through his studies on…

Q: What are telophase 1?

A: Meiosis can be divided into two divisions as a) Meiosis I b) Meiosis II.  As mitosis, the cell is…

Q: During mitotic anaphase is there separation of homologous chromosomes or separation of identical…

A: Mitosis is a type of cell division that gives rise to two genetically identical daughter cells.…

Q: What cohesins facilitate the attachment of sister kineto-chores to microtubules emanating from the…

A: The segregation of homologous chromosomes lies in them being pulled apart by microtubules. On one…

Q: What happens in Telophase? Explain briefly.

A: Mitosis is a type of cell division, during which one cell gives rise to two genetically identical…

Q: what part of interphase II is crucial in meiosis for the producttion of haploid cells?

A: During the formation of haploid cells or gametes, the process of meiosis occurs twice (Meiosis I and…

Q: Describe the mechanism of chromosome compaction

A: Answer:- The chromosomes contain the genetic material of the cell. It contains DNA in coiled form.…

Q: In the absence of SPO11, what meiotic events will be affected during early prophase I?

A: Spo11 protein encoded by gene Spo11 plays an important role in creating double-stranded breaks and…

Q: During meiosis I, assuming no crossing over, what chromatid combination(s) will be present at the…

A: Meiosis is the cell division of germ cells to produce gametes (sperm or egg cells) in sexually…

Q: During which phase of the mitotic cycle would the terms chromosome and chromatic refer to identical…

A: Deoxyribonucleic acid, abbreviated as DNA, is a double-helix made-up of nucleic acids. Its role in…

Q: What phase of mitotic interphase is missing from meiotic interkinesis

A: The process in which duplication of the cell occurs and the resultant cell will be genetically the…

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: Describe the folded-fiber model of the mitotic chromosome

A: Taylor and his coworkers introduced this model of chromosome structure in 1957, 1963 and is based on…

Q: Differentiate telophase I vs. telophase II

A: Meiosis type of cell division takes place in two phases: meiosis I and II. These phases are further…

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: Which of the following is an accurate model and description of anaphase II in Cape parrots?

A: As per the Karyotype of the somatic cells from the cape parrots obtained, they have total 29 pair of…

Q: Let’s suppose that a cell is heterozygous for three different genes (Aa, Bb, and Cc) and that each…

A: Meiosis is the process of reductional division that is divided into two stages known as meiosis I…

Q: In prophase I, homologous chromosomes pair up and undergo synapsisand crossing over. Can this also…

A: Crossing over is an essential mechanism responsible for shuffling of genes. It occurs during the…

Q: Would it be correct to say that a bivalent has four times the amount of DNA present in the…

A: Cell division: A process where parent cell divides to get two daughter cells. There are two types of…

Q: During Prophase I, the homologous chromosomes formed a synaptonemal complex. diplotene O pachytene o…

A: Meiosis is a type of cell division that occur in our reproductive cells.  The main purpose of…

Q: Structurally, meiotic cohesins have different components than mitotic cohesins. This leads to what…

A: The "cell cycle", also known as "cell division", is a set of processes that occur in a cell leading…

Q: What would the consequences be if one set of sister chromatids failed to separate at anaphase?

A: As we know all living organisms are made of  basic unit of structure and function called as cell. To…

Q: The sperm of Panthera leo contains 19 chromosomes, which of the following is/are true about somatic…

A: The sperms are gametes produced by male individuals. They are haploid cells (n) that contain a…

Q: Describe the role of chiasmata in chromosomesegregation during meiosis

A: In the process of cell division, the chromatin present in the nucleus forms a thread-like structure…

Q: Draw a well labelled diagram of metaphasic chromosome.

A: The cell can divide either by mitosis or meiosis. Meiosis occurs in germ cells like egg and sperm.…

Q: Define the following terms: Somatic Cell ______________________________________________________…

A: There are 46 chromosomes in human somatic cells: 22 pairs and two sex chromosomes that may or may…

Q: Describe the cytological observation that suggests that crossing over occurs during the first…

A: The reductional cell division is the meiosis. It happens in two major stages- meiosis I and meiosis…

Q: How does the random alignment of homologous chromosomes during metaphase I contribute to the…

A: MEIOSIS - It is defined as a process where two ( diploid ) parent cells gives rise to four daughter…

Q: which are major mechanisms by whichchromosomal rearrangements take place

A: A chromosomal rearrangement is a mutation that is a type of chromosome abnormality involving a…

Q: Shown below is a karyotype from a human being. How many total autosomes does this individual have?…

A: A chromosome is a long DNA molecule that contains part or all of an organism's genetic material.…

Q: Refer to the figure showing a pair of homologous chromosomes. What process is demonstrated in this…

A: Introduction Meiosis is a type of cell division that occurs in sexually reproducing organisms' germ…

Q: The somatic cells of a given species contain 14 pairs of chromosomes. If a gamete receives one…

A: Somatic cells contain 2n number of chromosomes (diploid) and gametes contain n number of chromosomes…

Q: What cell cycle events will be affected in a cell that produces mutated (non-functional) cohesin…

A: Cohesin is a protein complex that has a major role to play in  cell division processes(mitosis or…

Q: During spermatogenesis, which of the following options describes when cytokinesis would occur?…

A: Meiosis is a process where single germ cell divides twice to produce 4 cells containing half of the…

Q: How mang sister chromatids are found in a single human cell undergoing Prophase II of Meiosis?

A: Meiosis is a reduction division. Number of chromosomes gets reduced by half in daughter cells.…

Q: Compare the behavior of cohesin complexes duringmitosis, meiosis I, and meiosis II.

A: Cohesin refers to a multi-protein complex that controls the division of sister chromatids during…

Q: Overall, meiosis and mitosis are analogous processes involving many of the same proteins. However,…

A: Meiosis and mitosis are the two types of cell divisions.

Q: Describe the three basic steps in the formation and fusion of autophagosomes.

A: Autophagosomes are double-membraned vesicles that contain cellular material slated to be degraded by…

Q: Name the disorder with choromosome compliment 22 pairs of autosomes +21st chromosomes +XY?

A: Normally every human cell contains 23 pairs of chromosomes i.e. 46 chromosomes but sometimes, some…

Q: What would be the effect of crossing-over between two sister chromatids?

A: A chromosome has one chromatid before DNA replication.

Q: During meiosis in male mammals, sex chromosomes segregate to produce two types of sperm: X‑bearing…

A: In mammals sex determination is male heterogametic type in which the male produces two types of…

Q: What is the mechanism of generating aneuploiding A) Mitotic unequal segregation of…

A: Aneuploids are the individuals whose chromosome number is not a multiple of the haploid number (n).…

Q: Briefly describe the molecular processes that cause one X chromosome in each female cell to be…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: If there are 9 chromosome pairs, what is the chromosome number at telophase I (after cytokinesis)?

A: * Meiosis is of two types  Meiosis I Meiosis II * Meiosis I consists of four stages  Prophase 1…

Q: What would be the consequences to the outcome of meiosis if SPO11 is absent? Explain your reason.

A: Meiosis is a type of cell division that produces four gamete cells by halving the number of…

Q: In a Drosophila where somatic cells have 8 chromosomes, and gametes have 4 chromosomes, what is the…

A: Meiotic cell division is the process in which a single chromosomal replications cycle is followed by…

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: