Q: After fertilization the blastocyst develops three germ layers. Which germ layer is the innermost…
A: In the human embryo , after about three days of fertilisation,the zygote forms a solid mass of cells…
Q: Which is a triploid tissue? How is the condition achieved in a fertilized ovule?
A: Anther produces pollen grains which lands on the stigma of the pistil with the help of biotic and…
Q: Describe the internal structure of a testis. Where are sperm cells produced? What are the functions…
A: BASIC INFORMATION MALE REPRODUCTIVE SYSTEM It includes different organs namely; Scrotum, Spermatic…
Q: What is the implication that sperm cells have a lot of mitochondria and not much other organelles?
A: Mitochondria It is a double membrane bound organelle found in cytoplasm of eukaryotic cells. They…
Q: in an ectopic pregnancy what happens?
A: Pregnancy is a condition in which an embryo develops inside a female. Under normal conditions, the…
Q: Why fertlization doesnot takes place if the sperm count is lower?
A: The man's body makes tiny cells called sperm. During sex, ejaculation normally delivers the sperm…
Q: What do you mean by ovulatory phase?
A: The reproductive cycle in the female primates e.g.monkeys, apes and human beings) is called…
Q: What is the difference between internal & external fertilization?
A: The process in which a male gamete commonly known as sperm that is released by the male reproductive…
Q: Explain why there is a high level of estrogen and progesterone once in every 28-day uterine cycle of…
A: Menstruation is a complicated mechanism that occurs in every female for about 28 days after puberty.…
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: Describe the sequence of events leading from spermatogonia tosperm?
A: The process of fertilization is the process in which the male gamete fuses with the female gamete.…
Q: Where in the ovary would you find the various stages of the female gamete?
A: Oogeneis is the gradual development as well as maturation of oogonium into mature ovum through the…
Q: If a human female begins taking estradiol and progesterone immediately after the start of a new…
A: The hormones of the reproductive arrangement of vertebrates (sex hormones) are steroids that are…
Q: How many sperms will be formed from 64 spermatids?
A: Spermatogenesis is the process of producing sperms from the spermatogonia cells.
Q: In cryptorchidism, one or both testes of an infant have not descended into the scrotal sac by the…
A: Cryptorchidism is the absence of testes (one or both) from the scrotum. It is a common birth defect…
Q: Why does menopause occur?
A: Menopause is the natural biological decline process that defines the condition of reproductive…
Q: How old is an ovulated oocyte of a 35-year-old woman? What consequences does this have?
A: Fertility changes with age. For a woman, the beginning of their reproductive year starts onset of…
Q: What happenes if fertilization doesnot takes place in utreus?
A: Humans, as mammals, have the capability to reproduce sexually. Sexual reproduction requires the…
Q: What are the stages of oogenesis? Describe all the ways in which it differs from spermatogenesis ?
A: Introduction: The process of formation of the egg cells in the ovaries of the fetus is known as…
Q: Contrast the number of sperm that are produced from oneprimary spermatocyte and the number of eggs…
A: Introduction The life starts from single cell called Zygote. A zygote is formed by the fusion of…
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: "What is the advantage of internal fertilization over external fertilization and vice versa"?
A: The natural cycle by which new individual creatures – "offspring" – are delivered from their…
Q: What is the advantage of cephalization?
A: Cephalization is an evolutionary process of concentrating the nervous tissues, sense organs and…
Q: What happens to the corpus luteum if fertilization does not take place?
A: Corpus luteum is a mass of cells formed in the ovary. It is responsible for the production of the…
Q: What are the different layers of a fertilized T. trichiura? Discuss their respective compositions…
A: Introduction:- Trichuris trichiura (also known as Trichocephalus trichiuris) affects the human…
Q: .What type of abnormality in the sperm that fertilizes a normal egg will produce an XYY zygote? What…
A: XYY syndrome or Jacob's syndrome . This condition 47 ( or 46Y) is seen in male . It is not…
Q: Why is the ovary the most essential female reproductive organ?
A: Reproductive system is the organ system that is aimed at producing gametes. Female reproductive…
Q: In creating male contraceptives, what steps in fertilization might be possible to block to produce…
A: Contraceptives are the techniques, drugs are devices that play a vital role in the prevention of…
Q: Why the polar bodies cannot be fertilized by sperms?
A: A polar body is a tiny haploid cell that forms during oogenesis at about the same moment as an egg…
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: Despite the presence of So many sperms in the vicinity of an egg cell, only one sperm enters the…
A: Fertilization is a process in which male and female gametes fuse to form a zygote. This zygote…
Q: What happens if the mature ovum is not fertilized in a female? Name the process.
A: Reproductive system of an organism is also called a genital system. It is a biological system made…
Q: What is the advantage of internal fertilization over external fertilization and vice versa?
A: Question - What is the advantage of internal fertilization over external fertilization and vice…
Q: Describe the pre- and post- ovulation events of the menstrual cycle. How is menstruation prevented…
A: Menstruation cycle is the part of the female reproductive cycle. It's a series of events which takes…
Q: Where does the fusion of male and female gametes generally take place? I. Fallopian tube…
A: Gametes are an organism’s reproductive cells. They are also referred to as sex cells. Male gametes…
Q: Describe how a female primordial germ cell can produce multiple gametes.
A: The female reproductive system includes ovaries, uterine tubes or oviduct, uterus, vagina, vulva and…
Q: What is the outermost layer of the ovary?
A: The female reproductive system performed diverse functions. It produces the ovum also known as an…
Q: Explain how pituitary and hypothalamic hormones regulate and control the process of reproduction.…
A: Here we have to describe about how pituitary and hypothalamic hormones regulate and control the…
Q: List two important functions of gonads.
A: The reproductive system of an organism is also known as the genital system. It is the biological…
Q: What female reproductive structure is analogous to the male testes?
A: The female reproductive structure analogous to male testes is ovaries . Analogous structure are…
Q: What is sperm aneuploidy?
A: Aneuploidy is defined as the abnormal chromosome number in contrast to the usual chromosome number…
Q: Explain the function of the corpus luteum in the menstrual cycle. If an ovulated egg is fertilized,…
A: MENSTRUAL CYCLE:- In this cycle, the preparation of the uterine wall occurs accompanied by…
Q: What are the steps of fertilization
A: Fertilization is a process in which there is a fusion or union of the male gamete (sperm) and female…
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: Why is it risky for a haploid sperm cell to go through diffrencition after meiosis?
A: In males, new germ cells continuously enter meiosis from the time of sexual maturation, and each…
Q: Name the process of rupture of follicle and release of ovum from the ovary.
A: The above-mentioned definition is true for ovulation. This process ensures the presence of a mature…
Q: Define fertilization.
A: Embryonic development is also known as embryogenesis. This process includes the formation and…
Q: During spermatogenesis, is there any difference in outcome between first- and second-division…
A: Non disjunction-It occurs when pairs of homologous Chromosomes or sister chromatids fail to separate…
Why does external fertilization not require the involvement of gametes?
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