What happens to a cell in the absence of meiotic recombination?

Q: How do extra sets of chromosomes or extra individualchromosomes arise?

A: Some chromosomal conditions are caused by changes within the range of chromosomes

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: How is anaphase of mitosis different from anaphase I of meiosis?

A: Introduction :- The fourth stage of mitosis, known as anaphase, divides the duplicated genetic…

Q: Which process is responsible for creating unique recombinant chromosomes during meiosis?

A: The objective of the question is to identify the process that leads to the creation of unique…

Q: Are sister chromatids attached at the centromere considered to be one or two chromosomes?

A: Two threads like strands which divide a chromosome longitudinally are called chromatids.

Q: Why do the cells produced by meiosis undergo two nuclear divisions but only have a haploid number of…

A: Meiosis is a cell division that occurs at the time of the formation of gametes. It is divided into…

Q: Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with…

A: Meiosis is the process by which male and female gametes (n), sperm and ovum are produced from their…

Q: e difference between prophase I of meiosis and prophase of mitosis? How are they similar?

A: Introduction: The first stage of cell division in both mitosis and meiosis is known as Prophase.…

Q: What are the respective functions of the separation of homologous chromosomes and of the separation…

A: Meiosis is a process in which one cell divided to form four cells. It is responsible for the…

Q: In what stage of meiosis does two chromosomes divide?

A: In sexually reproducing organisms, cell division takes place via process called meiosis. *A single…

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 are the respective functions of the separation of homologous chromosomes and of the separation…

A: Introduction In this question we will discuss about the respective functions of the separation of…

Q: functions of the separation of homologous chromosomes and of the separation of dentical chromatids…

A: The detachment of homologous chromosomes in meiosis 1 serves two purposes: 1. it reduces the total…

Q: How many nonsister chromatids are in a chromosome?

A: Chromosomes are carrier of deoxyribonucleic acid (DNA). DNA is the genetic material. Chromatid…

Q: How is variation introduced into the genome by meiosis

A: Meiosis is a kind of cell division in which single diploid cell divides twice and four haploid cells…

Q: How is metaphase II of meiosis similiar to metaphase of mitosis?

A: Introduction: Meiosis, which produces gametes, is a reproductive cell division. Half of the…

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: Why is it important for DNA to replicate during interphase, before meiosis? Does it replicate…

A: Meiosis is a type of cell division where it brings about four extraordinary unique daughter cells,…

Q: When chromosomes improperly separate it is called what? What type of condition could this cause?

A: Introduction - Chromosomes are thread-like structures within the nucleus that securely wrap DNA.…

Q: What is a mitotic chromosome?

A: A cell is the basic structural and functional unit of life. They are often called as "Building…

Q: What happens in meiosis I?

A: Cell division is the biological process that results in the production of two or more cells from a…

Q: At what point duplicated chromosomes are joined?

A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…

Q: An important function of meiosis is to reduce the chromosome number to exactly half. How is this…

A: Meiosis is the division of a germ cell that involves two nuclear fissions and produces four gametes,…

Q: How does the first meiotic division differ from mitosis? The second meiotic division differ from…

A: Cell division is of two kinds that are mitosis and meiosis. The cell duplicates its complete content…

Q: If there are 4 chromosomes in the parent cell,how many chromosomes wil there be in the daughter…

A: Mitosis is a type of cell division in which the chromosomes replicate and are equally distributed to…

Q: What are homologous chromosomes? What happens to homologous chromosomes during meiosis?

A: Meiosis is reductional division. Mitosis is equational division.

Q: One Diploid Cell Produces which Four Haploid Cells?

A: Introduction  All cells with some exceptions undergo cell division in order to multiply. During cell…

Q: What is chromosomal mapping?

A: A chromosome contains all of the genetic material of an organism. Almost all the eukaryotic…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.