During spermatogenesis, is there any difference in outcome between first- and second-division nondisjunction?

Q: a. How many spermatozoa does one secondary spermatocyte produce?   b. Where in zygote does the first…

A: The male gamete "sperm" fuses with the female gamete "Ovum" and after this fusion "Zygote" develops.…

Q: Define spermiogenesis and spermiation.

A: The process of the development of male gametes or sperm cells is referred to as spermatogenesis.…

Q: What causes impaired spermatogenesis?

A: Answer- Spermatogenesis is the process of the formation of sperms in the testis by the help of…

Q: Explain about the gamete formation ? What are the results of this ?

A: Gamete can be defined as a  sex cell;which contains a haploid number of chromosomes and it has the…

Q: What is the entire process of oogenisis?

A: Oogenesis is the formation of a mature female gamete called ovum in the ovary. It is one of the…

Q: If a genetic male failed to produce MIS during fetal life, what would the result be?

A: The Müllerian-inhibiting substance (MIS) is a protein that is secreted from the testes, which leads…

Q: How do teratogens cause birth defects?

A: Teratogens are those substances or agents that cause harmful mutations or deformations in the genome…

Q: During which stage of cell division are spermatids formed from the secondary spermatocytes?

A: BASIC INFORMATION  GAMETOGENESIS  It is the process of formation of gametes. The diploid…

Q: How many sperms will be formed from 64 spermatids?

A: Spermatogenesis is the process of producing sperms from the spermatogonia cells.

Q: What is the acrosome of the sperm cell? How is it formed?

A: The sperm represents the male gamete which is a reproducible cell and contains a haploid number of…

Q: Why are Barr bodies not found in males?

A: In 1949, Barr and Bertram first observed a condensed body was called sex chromatin by them and was…

Q: Define spermiogenesis.

A: Sperm are the male gametes. They contain haploid (n) number of chromosomes. The process in which…

Q: Describe the principal events of spermatogenesis.

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: the most common cell type found outside of the follicular cells of a follicle?

A: Answer: Primordial cells: Primordial germ cells are highly specialised cells that are precursors of…

Q: Explain the process of gamete production in both malesand females.

A: In biology, gametogenesis is defined as the biological process in which diploid gamete cells divided…

Q: What is sex determination?

A: Genes are the structural and functional units of heredity that carry coded genetic information in…

Q: Which gene on the Y chromosome triggers the development of male characteristics? What would happen…

A: The Y chromosome is one of two sex chromosomes in therian vertebrates, including homo sapiens, and…

Q: What is the state of gonadotropin secretion during pregnancy,and what is the cause?

A: During the time of pregnancy, there are several hormones released by the placenta and ovary for the…

Q: Why do anabolic steroids lead to reduced sperm counts?

A: A steroid is an organically dynamic natural compound with four rings orchestrated in a particular…

Q: What is polycystic ovary syndrome and what causes it?

A: Ovulation is the release of an ovum from a mature follicle. Luteinizing hormone (LH) and…

Q: What happens in the process of spermiogenesis?

A: Spermatogenesis is the formation of a haploid and functional male gametes (i.e — spermatozoa) from…

Q: List the major steps in spermatogenesis.

A: BASIC INFORMATION GAMETOGENESIS  It is the process of formation of gametes. The diploid gametocytes…

Q: Name the hormones involved in regulation of spermatogenesis.

A: Spermatogenesis is the process of the formation of sperm cells. It begins when the spermatogonia…

Q: At what stage of spermatogenesis does meiosis I occur?

A: In the male, the primary sex organs are the testes. Sperm is the male reproductive cell. Sperms…

Q: rthenogenesis produce sterile offspring?

A: Parthenogenesis is a type of asexual reproduction in which the progeny is produced without…

Q: How many chromosomes are in a sperm cell?

A: All the somatic cells of the organism contain diploid set of chromosomes. The daughter cells formed…

Q: What gene normally present on the Y chromosome is responsible for a male phenotypic sex?

A: Sex determination in humans is based on the type of chromosomes present in an individual. Humans…

Q: What type of cells surround the oocyte in a unilaminar follicle?

A: oocyte present in a unilaminar follicles. oocytes is an cell present in the ovary which form ovum…

Q: What is spermatogenesis? Briefly describe the process of spermatogenesis.

A: The testes is the male reproductive organ which produces sperm and the male sex hormone. Sperm is…

Q: True or false sperm and ova or not identical to the parent cells that produce them?

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: What is the differencebetween spermatogonium andspermatocyte I?

A: In male reproductive system, a pair of testes are the primary reproductive organs. The chief aim of…

Q: If spermatogenesis is normal and all cells survive, how many sperm cells will be formed from 100…

A: Spermatogenesis is the process of sperm development. This cells play importance role in sexually…

Q: How does the femalegamete move from the ovaryto the uterus?

A: In the sexual mode of reproduction, gametes are the male and female reproductive cells that will…

Q: Explain how a spermatogonium, containing a diploid number of chromosomes, develops into four…

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: When are primary oocytes and spermatocytes produced, and how manygametes result from one diploid…

A: Spermatogenesis as the name suggests is the production of male gametes by the process of meiosis,…

Q: How common is sperm DNA fragmentation?

A: Sperms are the haploid male reproductive cells, which fuses with the haploid ovum or egg to form…

Q: Why is a genetic predisposition suggested for testicular cancer?

A: Testicular cancer is hereditary. It passes from parent to offspring. Many genes alteration are…

Q: Which nondisjunction disorder must be due to an event in sperm development: XO, XXX, XXY or XYY?

A: Allosomes are the sex chromosomes that differ from normal autosomes in size, form, and behavior.…

Q: What is the differencebetween spermatocyte I andspermatocyte II?

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: Explain the process of spermatogenesis

A: There are several events that take place in the sexual reproduction of human beings. The events…

Q: What is secondary spermatocytes?

A: Sperm is also called as spermatozoa. It is a male reproductive cells, produced by most animals. In…

Q: Prior to fertilization, where is the male gamete located?

A: Flowers are also known as blossom. Their primary function is reproduction in plants. They also a…

Q: What is the disorder that causes an individual who has inherited the XY chromosomes to appear female…

A: Human males contain two heteromorphic sex chromosomes i.e., XY, and females contain homomorphic sex…

Q: How does oogenesis differ from spermatogenesis?

A: The cell is the basic and smallest unit of organisms. A group of cells functions together that form…

Q: What is known as spermatogonium ?

A: The language used to describe anatomical features, procedures, symptoms, processes, and therapies…

Q: What are the Consequences of Inversions during Gamete Formation ?

A: A chromosomal inversion occurs when a portion of a chromosome is flipped end-to-end. When a single…

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.