Are mules sterile because they are hybrids of two different species or because they have an odd number of chromosomes?

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: How does ploidy change in Meiosis I? How many cells are produced at the end of Meiosis I? How many…

A: Meiosis occurs in the germ cells to produce gametes (sperms or eggs). It is a special type of…

Q: How are epialleles different from genetic alleles, such as those that encode differences in the…

A: Alleles are the different forms of a particular allele. It is a different sequence at the same…

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: What is a Barr body? How is it related to the Lyon hypothesis?

A: Humans exhibit XX-XY type of sex determination.

Q: Why Mules Are Sterile?

A: A mule is the offspring of a male jackass and a mare. mares and jackasses are different species,…

Q: What is the relationship between nondisjunction and aneuploidy?

A: A karyotype represent all chromosomes that are found in an organism. In human beings, there are 23…

Q: Why are triploid plants infertile?

A: The plants with three sets of chromosomes called triploid (3n) plants. These plants morphologically…

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: What are the types of aneuploidy?

A: Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each…

Q: Why is it useful to sort male mosquitoes from female mosquitoes?

A: Male mosquito do not bite the human. They do not need human blood for feeding they avoid human. They…

Q: How many chromosomes does the original parent cells have at the end of meiosis? Are the daughter…

A: Meiosis is a type of cell division that leads to the formation of haploid gamete cells during the…

Q: How does the law of segregation reflect the events of meiosis?

A: Law of segregation: This is one of the laws of Gregor Mendels Law of Inheritance. This law says that…

Q: At the end of meiosis I, the daughter cells created are DIPLOID or HAPLOID?

A: At the end of meiosis, 23 separate genetic chromosomes are present in the resulting reproductive…

Q: How many chromosomes does each of the daughter cells have at the end of meiosis. Are the daughter…

A: Cell cycle: - it is a series of changes occur in a newly divided cell through which it duplicates…

Q: Why are variation possible in progeny of sexually reproduative individuals?

A: Genetic variation refers to differences in DNA sequence found between one individual and another…

Q: What are haploidentical paternal regions?

A: Haploidentical transplant is a type of allogeneic transplant. It is a half matched stem cell…

Q: How does the law of independent assortment reflect the events of meiosis?

A: The Principle of Independent Assortment explains how different genes differentiate from one another…

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: What is the Law of Independent Assortment and how does this “law” relate to meiosis?

A: Introduction :- The alleles of two (or more) distinct genes are sorted into gametes independently of…

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: what are aneuploids?

A: Chromosome is the tread-like appearance of the nucleic acids and protein molecules present in the…

Q: How does Nondisjunction affect humans?

A: Cell division is a process by which a cell divides into two or four daughter cells. The cell…

Q: A) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of…

A: Meiosis is a type of cell division. It is the mode of cell division in which one cell divided into…

Q: What is the difference between the haploid and diploid number?

A: Ploidy It gives the information about the number of sets of chromosomes found in the nucleus.…

Q: Concept: The Monohybrid Cross RevealsQuestion: How One Trait Is Transmitted from Generation to…

A: The transference of the phenotypic traits from the parents to the offspring during reproduction is…

Q: How will the offspring be affected if one of the gametes or one of the parents carries an impaired…

A: Any syndrome marked by deformities or malfunctions in any of the body's systems and caused by an…

Q: How did the cessation of crossing-over contribute to the disparity between the X and Y chromosomes?

A: Crossing over is a process where two homologous chromosomes exchange their genetic material to…

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: 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: How many females are wild type?

A: Wild type is a type of gene, genotype or phenotype that is present in the natural strains. On the…

Q: How would you set up crosses to determine if a gene is Y-linkedversus X-linked?

A: Sex determination mechanisms include sex differences based on sex chromosomes, number of sets of…

Q: During meiosis, does random assortment occur before or after crossing-over?

A: Meiosis is the cell division that includes meiosis I and meiosis II without any DNA replication…

Q: Why does aneuploidy increase with maternal age?

A: A normal human cell has 46 chromosomes. Aneuploidy is a condition when a human cell has an abnormal…

Q: What is a partial diploid?

A: The term diploid refers to the status of ploidy level in the cells of an organism. Ploidy is defined…

Q: Chewbacca from Starwars is a part of a species that has 64 chromosomes for its diploid number. What…

A: Haploid is number of chromosome which is present in gametes .It is represented as n. Example :-…

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: What is the reason behind the event that a zygote receives half of the chromosome from the parents

A: A zygote is a cell formed by the fusion of sex gametes. During human fertilization, sperm from the…

Q: what are autopolyploids?

A: Chromosomes are structures in the nucleus of eukaryotes that carry genes. Animals and plants have…

Q: What is the formula for a female with a Philadelphia chromosome?

A: Hi, Thanks For Your Question.  Answer : The Philadelphia chromosome Is A Specific Genetic…

Q: What is crossing over and where does it occur in meiosis? Why is crossing over important for…

A: When a mother cell divides into two or more daughter cells, a parent cell has undergone the process…

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 evidence indicates that humans with aneuploid karyotypes occur at conception but are usually…

A: Introduction- Aneuploidy refers to errors in chromosome separation leading to occurrence of one or…

Q: Why do the daughter cells produced from meiosis I need to divide again in meiosis II?

A: Meiosis is a cell division which decrease the no. of chromosomes in the parent cell by half and…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.