explain the Nondisjunction during second meiotic division

Q: Explain why a triploid individual is usually infertile?

A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…

Q: If nondisjunction occurs in a chromosome pair, what will be its effect on the gametes and the…

A: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to divide properly…

Q: During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the…

A: Meiosis is the process of cell division that produces four daughter cells from a single cell. These…

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: 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: If you observed a dicentric bridge at meiosis, what rearrangement would you predict had taken p

A: To observe: To observe the type of rearrangement if a dicentric bridge at meiosis have occurred.

Q: describe the Chromosomal rearrangements caused by TEs

A: Transposable elements (TE) or transposons are segments of DNA that can move around the genome.  It…

Q: During oogenesis, nondisjunction of X chromosome occurred in meiosis I. If the resulting egg unites…

A: Non disjunction is the failure of chromosomes / chromatids to separate during Anaphase. In Meiosis…

Q: Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.

A: To draw: A simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome

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: Chromosome nondisjunction during either meioticdivision creates unbalanced gametes and thus…

A: Aneuploidy can be defined as the presence of an abnormal number of chromosomes in a cell. For…

Q: At the end of meiosis I:

A: Meiosis : In organisms, sexual reproduction occurs with the fusion of male and female gametes, the…

Q: Crossing over in meiosis results in

A: Ans- B) New combinations of genes and more variety of offsprings. Crossing Over took place in…

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: Describe how meiotic and mitotic nondisjunction occur and identify their possible phenotypic…

A: Nondisjunction is the process of failure of sister chromatids or homologous chromosomes to separate…

Q: Describe the differences between the chromosomalcombinations of a cell at metaphase I and metaphase…

A: METAPHASE:           In eukaryotic cells the nuclear division occurs in four different phases…

Q: Does this diagram represent normal Meiosis? Why or why not? XX X) X 0000

A: Cell division happens when a parent cell divides into two or more cells called daughter cells. Cell…

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: Explain the meaning of diploid.

A: The cell is the basic structural and functional unit of our body. It carries out many functions in…

Q: Describe the consequences of nondisjunction during meiosis

A: Non-disjunction occurs when the chromosomes do not separate properly, leaving gametes with one…

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: explain how Errors in meiosis cause aneuploidy.

A: Meiosis is a type of cell division in which a single parent cell produces four daughter cells.…

Q: In which parent and during which meiotic division did non-disjunction occur? If there is more than…

A:

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: Illustrate how a married couple could have a child with XYY and XXY. Illustrate clearly in which…

A: XYY syndrome refers to Jacob's syndrome that is also a genetic disorder caused due to the presence…

Q: non-disjunction and explain if it matters if it happens during meiosis I or meiosis II.

A: Meiosis is a type of cell division (CD) where four gametes or daughter cells are produced as a…

Q: Assuming that independence assortment occurs during meiosis what types of gametes will form…

A: Independent assortment is the separation of gene pairs independently from the other gene pairs.…

Q: Briefly describe nondisjunction in meiosis and identify several potential consequences. In other…

A: Meiosis is the type of cell division that occurs in the sex cells to produce gametes in the form of…

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: 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: Crossing over occurs during prophase Il of Meiosis.

A: Crossing over is essential for the normal segregation of chromosomes during meiosis. It is also…

Q: Explain how the random alignment of homologous chromosomes during metaphase I contributes to the…

A: During metaphase I, the chromosomes align at the center of the cell. This phase ensures that the two…

Q: Crossing over occurs during the __________________________ phase of meiosis.

A: A cell cycle is a series of event that occurs in a cell to divide it into two cells by the process…

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: Briefly illustrate how nondisjunction in meiosis can result in Down syndrome.

A: Down syndrome is commonly resulting from a disorder within the cellular division called"non…

Q: Describe the process of crossing over AND identify the phase of meiosis when crossing over occurs.

A: Meiosis is the process in which a cell divides twice to create four cells containing the half amount…

Q: Explain the process of the following: a. The normal segregation of chromosomes during Meiosis 1 and…

A: Normal segregation will result in the formation of gametes with normal genotypes. Abnormal…

Q: If a female is born with Turner syndrome, how might this have occurred? Draw out the potential…

A: Turner's syndrome is an autosomal dominant genetic disorder found in only females due to missing…

Q: Discuss the significance of the mitotic process and meiotic process.

A: Mitotic process or mitosis is a type of cell division process which takes place in the somatic cells…

Q: explain the meiotic segregation of reciprocal translocations.

A: RECIPROCAL SEGREGATION results from exchange of two terminal segments from different chromosomes.…

Q: Please explain what would be the consequences in successive generations of offspring if the…

A: The genetic content of eukaryotes is found in the nucleus. It is tightly packed and can be seen in…

Q: Assuming no crossing over between the gene in question and the, when do alleles segregate during…

A: gene is present in different forms that are expressed in a phenotype; allele is a one of the…

Q: Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down…

A: Amongst all the chromosomal disorders, deformities in chromosome number are very easily recognisable…

Q: Explain the steps of meiosis in a diploid (2n ) cell.

A: Meiosis is a cell division that makes four daughter cells from a single parent cell.

Q: . If you observed a dicentric bridge at meiosis, what rearrangement would you predict had taken…

A: Introduction :- Only if there was at least one crossover in the inverted segment would a bridge…

Q: List and describe the phases of meiosis.

A: Cells are the unit of life which contribute in the formation of all living beings. It is the site…