Why are Barr bodies not found in males?

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: Identify some differences between meiosis in men andwomen.

A: Meiosis is a process of cell division in which a parent cell divides twice to form four daughter…

Q: What is the main reason for meiosis in animals? What is the main reason for mitosis in animals?

A: The process that allows a cell to divide into two or more daughter cells is called cell division. It…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

Q: What is considered to be the fundamental difference between males and females of most organisms?

A: The males and females of almost all species differ from one another in various characteristics.…

Q: How does meiosis increase variation?

A: Meiosis is a process in which single cell divides twice to produce four daughter cells containing…

Q: How are the primary and secondary neurulation similar? How do they differ?

A: According to the question we have to explain the similarities and differences between primary and…

Q: what is the chromosomal system for determining sex in mammals?

A: Chromosomal determination of sex It is also known as allosomic determination of sex and is based on…

Q: Define allostery.

A: The term "allostery" is a Greek word, in which "allo" means other and "stery" means space. It…

Q: Explain sex differentiation?

A: Introduction  Chromosomes are classified into two types: Autosomes and Allosomes/Sex chromosomes.…

Q: Why is it important to learn about Mei

A: Ans- Meiosis is important to learn for three reasons: it allows diploid organisms to reproduce…

Q: Explai sex determination briefly?

A: Sex determination is defined as the establishment of the sex of an organism. It is done usually by…

Q: Determine the stages of meiosis and the major events take place in each stage.

A: During meiosis, the cell divides into four daughter cells, each of which shares 50% of the parental…

Q: How many chromosomesdoes a human normal haploidcell have? How many chromosomes does a human normal…

A: The chromosomes are a thread-like structure that consists of tightly packed DNA and proteins.  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: What respectively arezygotic meiosis, gameticmeiosis and sporic meiosis?

A: Introduction  Cytology refers to the study of cell such as cell morphology, physiology etc. As we…

Q: Describe the movements of chromosomes during the states of meiosis to produce sperm and eggs?

A: Meiosis is the process mainly used for the production of sex cells like female egg and sperm. In the…

Q: How many Barr bodies would you expect in a 48,XXYY individual? 3 4 0 2 1

A: The inactivated X chromosome present in the normal female somatic cell is known as Barr body.. The…

Q: What are the advantages and disadvantages of the alternation between fertilization and meiosis in…

A: The fusion of female gamete (egg cell) and male gamete (sperm) is termed as fertilization.

Q: Describe the basis of sex reversal in humans.

A: Sex-reversal is an event in which the sex of an offspring is opposite to the genetically determined…

Q: How does meiosis maintain the number of chromosomes in a sexually reproducing species?

A:

Q: Is Barr's Corpuscle a Reliable Tool for Sex Determination?

A: Canine morphology is used for the determining the sex. However aside from this technique, X and Y…

Q: What features of meiosis are important in sexual reproduction

A: The movement of cells is a four-stage mechanism consisting of Gap(1), Synthesis, Gap 2(G2), and…

Q: What prevents an individual from mating with itself?

A: Mating is the process when hermaphroditic organisms or individuals of two opposite sex pair up for…

Q: Describe how neurulation occurs. Why is it important?

A: We know that The continuation of species in the world is due to the process of reproduction; either…

Q: What are zygotes and other cells carrying two matching sets of chromosomes?

A: Gametes are basically the reproductive cells of an entity or organism.  Sperm cell and egg cells…

Q: Where is the specific location in an animal where cells are undergoing Meiosis?

A: Meiosis is process of cell division. During meiosis process cell divides into four daughter cells…

Q: What is true of meiosis? 1.Meiosis produces four daughter cells. 2.The daughter cells that result…

A: We usually inherit some of the physical traits( skin texture, eye color, etc.) and biochemical…

Q: How are mitosis and meiosis alike and different? Identify the steps of meiosis

A: The cells in our body divide and reproduce by two methods known as mitosis and meiosis. There are…

Q: What is a gamete and other cells that carry only a single set of chromosomes?

A: Gametes are cells that are formed by meiosis. Four gametes are formed as a result of two fissions.…

Q: What is inability to reproduce known as?

A: In humans the mode of reproduction is sexual and involves the fusion of male and female gametes…

Q: Which of the following cells are haploid? (a) (b) spermatogonium ova (c) (d) oogonium somatic cell

A: Answer: Introduction: Embryonic development is also called as embryogenesis, is the growth of an…

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.