what is Meiotic Nondisjunction?

Q: In meiosis, after telophase I, do other cells (comparing one another) have the same combination of…

A: Cell cycle consists of stages of cell growth and reproduction. In M phase of cell cycle, cell…

Q: What is the difference between meiosis 1 and 2?

A: Fertilization is the process by which the male gamete, sperm, fertilize with the female gamete,…

Q: What is the difference between Meiosis I and Meiosis II?

A: Meiosis is a process in which a single parent cell divides and produces four daughter cells…

Q: In Meiosis, what is a tetrad?

A: A Bivalent or the pair of homologus chromosome with 4 sister chromatids. It is typically formed…

Q: In which meiotic division does the separation of the homologous occur? What are the ploidies of the…

A: Meiosis is a mode of cell division. In this one cell divides to form 4 cells.

Q: How many chromosome duplications take place in Meiosis?

A: Meiosis: It is the process of cell division forming four daughter cells that contain half of the…

Q: What is the definition of meiosis? What are the phases of meiosis? What are the general features of…

A: Meiosis is the cell division where a parent cell divides to give rise to two daughter cells that…

Q: what is the benefit of crossing over?

A: REPRODUCTION:- It is the production of offspring from the parents. It is of two types:- 1)Asexual…

Q: What are the periods of the second meiotic division?

A: Meiosis is the reduction division type of cell division in which the original number of chromosome…

Q: What is crossing over? In which period of meiosis does this event occur?

A: Introduction - Crossing over is a biological event in which chromosomes of the same kind line up…

Q: if during normal division meiosis I does not occur, will meoisis II still proceed?

A: Meiosis This process involves the division of a single cell twice to form four haploid daughter…

Q: How are chromosomes segregated during the process of meiosis?

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

Q: What is the result of meiosis 2?

A: Reproduction is the process that ensures the continuity of species on earth. It is the main feature…

Q: What is independent assortment, and during what phase of meiosis does it occur?

A: The cell cycle is the orderly series of events that causes a cell to grow and divide producing…

Q: What are the products of crossing over?

A: The process in which parent cells divide and produce two or more daughter cells is referred to as…

Q: Why does meiosis produce cells with half the required genetic material?

A: In the process of meiosis , at the end the produced reproductive and gamete each have 23 genetically…

Q: What is inversion heterozygotes ?

A: Heterozygote can be defined as the genes that are  for the specific trait are considered to be…

Q: What are the periods of the first meiotic division?

A: Meiosis could be divided as meiosis-I and meiosis-II. Meiosis-I is the reduction division and…

Q: What is the end result of crossing over?

A: Crossing over allows the exchange of genetic material and forms unique combinations of alleles. This…

Q: What are meiosis1 with example?

A: Meiosis is a type of cell division in which a parent cell divides into four genetically different…

Q: How does non-disjunction in meiosis lead to numerical chromosomal aberration?

A: Chromosome is the rod shaped, dark stained bodies which are most prominently seen in the metaphase…

Q: Why does nondisjunction in meiosis I results in a higher proportion of faulty gametes than…

A: Of all the chromosomal disorders, the most readily recognisable from a karyogram are chromosome…

Q: How are chain chromosomes formed and will the formation of this result to sterile or fertile…

A: Although seen rarely among vertebrates, chain chromosomes are a phenomenon that can be seen to…

Q: In what phase of meiosis is chromosome recombination most common?

A: Introduction :- Meiosis is a process in which a single cell divides twice to produce four cells with…

Q: What are the subdivisions of meiosis and what are the major events in meiosis I?

A: The cell cycle is the orderly series of events that causes a cell to grow and divide producing…

Q: How is the interval between the two meiotic divisions different from interphase?

A: Mitosis and meiosis are the two ways that cells divide and reproduce.

Q: In which meiotic division does the separation of identical chromatids occur? After the end of this…

A: Meiosis occurs in two steps known as meiosis-I and meiosis-II. Meiosis-I is the reduction division…

Q: What is the cause of aneuploidy?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: At what stage of meiosis (I or II) does crossing-over occur?

A: Crossing-over is a process that occurs during meiosis (I or II) whereby homologous chromosomes…

Q: What is crossing over? How is meiosis related to this phenomenon?

A: Linked alleles, such as A-b and a-B, combine to form the gametes A-b and a-B, which are responsible…

Q: t are the 8 phases of meiosis?

A: All organicism has two types of cells: somatic cells, which undergo mitosis and are responsible for…

Q: at what point in meiotic cell division would nondisjunction occur?

A: All living organisms are made up of cells. The cells are the basic structural and functional unit of…

Q: What is inversion heterozygote?

A: Inversion is a chromosomal rearrangement when a segment of chromosome breaks and then rejoins in…

Q: How does nondisjunction lead to disorders in chromosome number?

A: When the nucleotides sequences in the genome of an organism are altered or changed due to mistakes…

Q: What is Modeling Meiosis

A: Meiosis is a process of cell division in which a single cell is divided twice to provide four cells…

Q: An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B •…

A: Translocation is caused Due to separation of a chromosome segment and its union to a non-homologous…

Q: Which are the three different types of meiosis that can take place, each of which produces a…

A: Meiosis is a type of cell division in which the daughter cells formed have half the ploidy level as…

Q: How do the four cells at the end of meiosis differ from the original mother cell?

A: Meiosis is a process in which four cells containing half the original amount of genetic material are…

Q: Why are the homologous regions of the X and Y chromosome important during meiosis?

A: One of the defined types of cell divisions characterized by the occurrence of two rounds of division…

Q: What are the 8 stages of meiosis in order?

A: Meiotic cell divisions occur in germ cells where the genetic material in diploids undergoes two…

Q: How do we know if Nondisjunction occurs in meiosis one or two?

A: Meiosis is a type of cell division which generally occurs in germ cells or reproductive cells.…

Q: What is the purpose of meiosis? In other words, why create haploid cells?

A: Meiosis, is used for just one purpose in the human body.  The formation of gametes—sex cells,  which…

Q: What are the subdivisions of meiosis?

A: During meiosis one diploid parent cell produces four haploid daughter cells that are not identical…

Q: Since the goal of making haploid gametes is to create cells with only one full set of chromosomes…

A: The cell division in which parent cell divides into four daughter cells with half the chromosome…

Q: Why is meiosis necessary for sexual recombinations?

A: In the process of meiosis, a single cell divides twice to produce four haploid daughter cells…

Q: What is the Y Chromosome ?

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

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: