In most sexual species, males produce far more gametes than do females.  Why does this occur when, in most cases, only one male gamete can fertilize one female gamete?

Q: How Do Meiosis and Union of Gametes Produce Genetically Variable Ofspring?

A: Introduction: In meiosis, a single cell undergoes the process of division twice and result in the…

Q: (b) P generation P generation Precocious Normal Normal Normal puberty ở Pp puberty ? pp puberty ? Pp…

A: The term precocious puberty means when the development/onset of puberty characteristic or changes…

Q: How many types of gametes can be produced by an individual with genotype AaBbCcDdee?  9, 8, 16, 32,…

A: Gametes are produced by the process of meiosis from the parent cell.

Q: Why do anisogamous organisms only experience the twofold cost of sex?

A: Anisogamy Aniosgamy is a reporduction process in which the different forms or sizes of male and…

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: Contrast the XX/XY and XX/X0 modes of sex determination.

A: A sex-determination system is a biological system that determines the development of sexual…

Q: What is the role of meiosis? In what ways does meiosis give rise to different genetic combinations…

A: What is the role of meiosis?

Q: 6. What is the probability that an egg bearing a Y- chromosome be fertilized by a sperm carrying an…

A: Fertilization is the summation of physico chemical events leading to the fusion of two sex cells…

Q: but, luckily, scientists develop a way for women to produce babies by virgin birth. Meiocytes are…

A: The process of conversion of meiocytes directly into zygote, without undergoing meiosis, is known as…

Q: In the process of Oogenesis in animal cells, will the genotype of the second polar body (derived…

A: The process of ova formation also referred to as the formation of female gametes, is characterized…

Q: Where does meiosis occur in males? Why are each of these stages important in sexual reproduction?…

A: Meiosis is a type of cell division that results in the formation of four daughter cells that have…

Q: Concerning the sexchromosomes of the XYsystem which type of gametedo the male and the…

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

Q: Given that each secondary spermatocyte has 23 chromosomes, how is it possible that at the end of…

A: Spermatogenesis is a process to produce sperms in seminiferous tubules. Meiosis division takes place…

Q: Why is it necessary for gametogenesis to reduce the chromosome number of the sex cells by one-half?

A: Ans: Gametogenesis: It is the biological process in which haploid or diploid cells divide as well as…

Q: 3 00 kl c. nondisjunction d. meiosis I O e. meiosis II enetically male 8-week-old fetus that…

A: In 1st diagram pairing of homologous chromosomes takes place. Chromosome number is 4 In 2nd…

Q: Only one gene is present in gamete and not both . explain it?

A: Gametes  Gametes are the male and female reproductive cell produce by male and female reproductive…

Q: 22. Identify the stage of meiosis. Why is this stage critical to human development?

A: The cell is the basic structural and functional unit of the body. The chromosomal theory of…

Q: Show via a diagram how the product(s) of a meiotic (either I or II) nondisjunction involving the X…

A: Kilnefelter's Syndrome:  Klinefelter's syndrome is a genetic disorder in which a boy is born with an…

Q: Define the following terms related to sexual production: a.) Autosome b.) Sex chromosome c.) Gamete…

A: The type of reproduction in which two parents are involved is known as sexual reproduction.

Q: 1. It is the creation of an offspring by fusion of haploid gametes, male sperm and female eggs, to…

A: Introduction Reproduction:- It is the process of producing new individuals of the same kind, an…

Q: compared to an organism that reproduces asexually. What process that occurs during meiosis is…

A: There are two types of cell division and they are mitosis and meiosis. Meiosis is also called the…

Q: _1. How many polar bodies will be produced by 32 primary oocytes considering that their meiosis II…

A: Male and female gametes (sperms and eggs) are created in the male and female gonads (testes and…

Q: Why do mature gametes carry only one set of chromosomes?

A: Gametes are male and female gametes which are haploid .These are germ cells. Ex: sperm cell and egg…

Q: What is the difference between a diploid cell and a haploid cell, and which of these cell types is…

A: Cell is the building block of the body. It is a structural unit of life. It is the basic functional…

Q: A 5.) a. Choose the figure (A or B) where nondisjunction occurs in Meiosis I. b. Explain…

A: Nondisjunction is an error in cell division that happens when homologous chromosomes or sister…

Q: 7. Why are the marks of imprinted genes erased and reset during gamete formation?

A: The expression of gene is decided by the sex of parent they come up from, such genes are known as…

Q: What are two distinct chromosomes that provide the basis of sex determination?

A: In a biological system, the development of sexual characteristics in an organism is determined by…

Q: Folliculogenesis is characterised by the progressive development of ovarian follicles prior to…

A: Folliculogenesis is a coordinated process that is triggered by signals from the anterior pituitary…

Q: •.explain why meiosis occurs only in specialized cells (gametes), and that the overall goal of…

A: Gametes are developed with half chromosomal content from the parent's genetic materials, for that…

Q: . A nondisjunction occurs in the sex chromosomes of a male mouse. What ratio of sex chromosome…

A: Nondisjunction occurs when sister chromatids and homologous chromosomes fail to separate from each…

Q: Name 2 sources of variation produced during meiosis.

A: Meiosis is a form of cell division in which the  reduction of the number of chromosomes to half…

Embryology