Q: Briefly describe and compare male and female gametogenesis in human.
A: The process where a haploid cell is formed from a diploid cell through meiosis and cell…
Q: At what time in the menstrual cycle is the level of thefollowing hormones high, and what is the…
A: The mensural cycle refers to sequential changes that occur within the female reproductive system by…
Q: Describe 4 factions of progesterone during the menstrual cycle.
A: Every month in the time between puberty and menopause, a woman’s body undergoes a number of changes…
Q: What is nidation? In whichphase of the menstrual cycledoes nidation occur?
A: The female reproductive system in mammals involves structures and organs that are involved in the…
Q: Explain how sexual differentiation is determined by the sex chromosomes and prenatal hormones?
A: Chromosomal determination of sex - It is also known as allosomic determination of sex and is based…
Q: In which period of life doesthe formation of gametesbegin in women?
A: Gametes are reproductive cells. In male it is known as sperm and in female it is known as egg or…
Q: Give the significance of the following: a. spermiogenesis b. acrosome formation c. sperm…
A: The sperms are produced in the primary sex organ of males and it is the haploid gamate that fused…
Q: Distinguish between parthenogenesis and hermaphroditism.
A: The biological process through which an organism produces its offspring from its parents is called…
Q: What directly triggers the release of progesterone? The release of FSH O Ovulation O Fertilization O…
A: Progesterone is well known as sex hormone. It is endogenous steroid in nature because they belong to…
Q: If a woman 7.5 months pregnant is found to have a marked decrease in plasma estrogen but normal…
A: Estrogen and progesterone are the hormones that maintain pregnancy in women. Estrogen is released in…
Q: Predict the effect on the ovarian cycle of administering a relativelylarge amount of estrogen and…
A: OVARIAN CYCLE The ovarian cycle refers to all the changes taking place in the ovaries during the 28…
Q: What event marks thebeginning of the menstrualcycle? What is the bloodconcentration of FSH,…
A: EVENT MARKS THE BEGINNING OF THE MENSTRUAL CYCLE; 1.If the egg does not become fertilized during…
Q: What will be the advantage and disadvantage of producing through asexual and asexual method?
A: BASIC INFORMATION ANIMAL KINGDOM It is among one of the five kingdom classified by R.H. Whittaker.…
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: During gametogenesis, from a single germ cell (oocyte/spermatocyte), males produce. O4;1 4:4 O1;1…
A: ANSWER) Gametogenesis is the process by which oocytes and spermatocytes produces gametes. More male…
Q: What are the endocrineglands that regulate sexualactivity in males? How doesthis regulation work and…
A: Endocrine glands are the ductless glands that secrete chemical messengers called hormones.
Q: Inhibition of the release of GnRH from the hypothalamus will O stimulate production of estrogen and…
A: Hormones are the chemical messengers that are secreted by the glands in the body. They are essential…
Q: What is the hormonesecreted by the growingovarian follicles? What is theaction of that hormone…
A: Ovarian follicles are immature eggs or oocytes found in ovaries of the female reproductive system.…
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: Briefly explain the contradictory roles of estrogen in the humanfemale reproductive cycle.
A: The female reproductive system consists of internal and external sex organs. It produces gametes,…
Q: Draw a labelled diagram of a Graafian follicle?
A: The Graafian follicle is the follicle that is formed after first meiotic division but before…
Q: What is the structure intowhich the follicle istransformed after ovulation?What is the importance of…
A: Ovulation is a part of the menstrual cycle and is the process in which an egg is released from the…
Q: What would happen to the LH/FSH blood levels after menopause (the cessation of the ovarian and…
A: Luteinizing hormone and follicle-stimulating hormone are called gonadotropins because they…
Q: what is the importance of nucleolar amplification in terms of gametogenesis?
A: Gametogenesis is a biological process in which diploid or haploid precursor cells divide and grow…
Q: What conclusion can you draw regarding the relationship between the thickness of the endometrium and…
A: Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy.
Q: In ovary which structure transforms as corpus luteum and name the hormonesecreted by corpus luteum?
A: The reproductive system consists of two system namely male reproductive system and female…
Q: What are the hormonesthat promote the release ofthe female gamete from thefollicle and at which day…
A: Reproductive cycle is a common phenomenon exhibited by all sexually reproducing animals. In primates…
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: List three hormone-dependent reproductivedisorders and describe the role of the hormone ineach case.
A: The hormones produced by the reproductive organs are called the reproductive hormones. They are…
Q: At puberty, the testes contain a finite number of cells and producean enormous number of sperm cells…
A: Spermatogenesis could be a joint sequence of events throughout maturation of spermatogonia into…
Q: How will the feedback mechanism in the menstrual cycle responds if there is a high level of…
A: A feedback mechanism or feedback loop is a physiological regulation system in a living body that…
Q: List three ways in which oogenesis differs from spermatogenesis. Be specific!
A: Spermatogenesis and oogenesis are the processes of the formation of male and female gametes.…
Q: What is the relationshipbetween the estrogen leveland the LH level in themenstrual cycle? What is…
A: Step 1 The menstrual cycle is regular recurring physiological changes. It is found in the human…
Q: Explain the concept of negative feedback using the male reproductive hormones (hormonal control of…
A: As per the guidelines we are supposed to answer only the first question in case of multiple question…
Q: What is the organ thatreleases the female gameteunder formation? How is thisrelease triggered? What…
A: The reproductive system is involved in sexual reproduction. The male and female reproductive systems…
Q: How many follicles mature every month during the reproductive phase of human female?
A: The reproductive phase is a period when an individual reproduces sexually. It begins at an early…
Q: If the release of LH were inhibited in a human female, which of the following events would not…
A: Luteinizing hormone is a hormone produced by gonadotropic cells in the anterior pituitary gland. The…
Q: What role does pituitary gonadotrophins play during follicular and ovulatory phases of menstrual…
A: The menstrual cycle takes place in a cyclic order and can be divided into four main phases.…
Q: What is the relationshipbetween the menstrual cycleand ovulation?
A: The menstrual cycle is also known as the uterine cycle. In this cycle, the uterus endometrium layer…
Q: Describe gametogenesis in human.
A:
Q: Describe the steps from ovulation through implantation in the uterine wall. How does hormonal…
A: Ovulation is the release of an egg from one of the ovary, into the fallopian tube and implantation…
Q: Parthenogenesis is the most common form of asexualreproduction in animals that at other times…
A: Asexual reproduction is a type of reproduction in which offspring are produced without the fusion of…
Q: Does the hypophysis-ovaries endocrine axis work inthe same way duringpregnancy as in…
A: MENSTRUAL CYCLE:- In this cycle, the preparation of the uterine wall occurs accompanied by…
Q: Concerning their size andbasic morphology how andwhy do the male and thefemale gametes…
A: Gametes or the sex cells are produced by the meiosis process called gametogenesis. The production of…
Q: Describe the effects of increased estrogen secretionduring the menstrual cycle.
A: Introduction:- In addition to regulating the menstrual cycle, estrogen affects the reproductive…
Q: In humans, gametogenesis in both sexes relies on meiosis. However, spermatogenesis produces four…
A:
Q: How is the ovulation dateestimated with the control ofthe woman's bodytemperature?
A: The body's resting temperature increases lightly during the luteal phase (the second half) of the…
Q: Regarding female gametes, when does melosis begin? O at age 5 O at tertilization O during fetal…
A: Gametes are sex cell or reproductive cell that consists of a haploid set of chromosomes. Gametes are…
Concerning events during
the periods of life how
different is the gametogenesis
in women and in men?
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- what is the importance of nucleolar amplification in terms of gametogenesis?Describe how the hypothalamic-pituitary-gonadal axis regulates gamete production in males and females. Give the hormones from each gland that are secreted in this process.Describe the hormonal control of spermatogenesis in terms of the hypothalamic-pituitarygonadal axis (HPG axis) – in this case, the hypothalamic-pituitary-testes axisList the anabolic and androgenic effects of testosterone
- List three hormone-dependent reproductivedisorders and describe the role of the hormone ineach case.A study divides healthy females into two groups (A and B). Both groupsare composed of those who have been sexually active for at least 2 yearsand are not pregnant at the beginning of the experiment. The subjectsweigh about the same amount, and none smoke cigarettes, althoughsome drink alcohol occasionally. Group A individuals receive a placeboin the form of a sugar pill each morning of their menstrual cycles. GroupB individuals receive a pill containing estrogen and progesterone eachmorning of their menstrual cycles. Then plasma LH levels are measuredbefore, during, and after ovulation. The results are as follows:Group 4 Days BeforeOvulationDay ofOvulation4 Days AfterOvulationA 18 mg/100 mL 300 mg/100 mL 17 mg/100 mLB 21 mg/100 mL 157 mg/100 mL 15 mg/100 mLThe number of pregnancies in group A is 37/100 females/year. Thenumber of pregnancies in group B is 1.5/100 females/year. Whatconclusion can you reach on the basis of these data? Explain themechanism involved.Predict the effect on the endometrium of maintaining high progesteronelevels in the blood, including periods of time during which estrogennormally increases following menstruation
- Ovaries secrete the hormone estrogen in greater amounts after menstruationand a few days before ovulation. Among its many effects, estrogen causesthe up-regulation of receptors in the uterus for another hormone secretedby the ovaries, called progesterone. Progesterone, which is secreted afterovulation, prepares the uterine wall for possible implantation of an embryo.Pregnancy cannot occur unless the embryo implants in the uterine wall.Predict the consequence of the ovaries’ secreting too little estrogen.Give at least nine (9) physiologic actions of estrogenFigure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.
- What is the difference between gamete intrafallopian transfer (GIFT) and intracytoplasmic sperm injection (ICSI)?Describe the processes of meiosis and mitosisDescribe the process of spermiogenesis Describe the hormonal control of spermatogenesis in terms of the hypothalamic-pituitarygonadal axis (HPG axis) – in this case, the hypothalamic-pituitary-testes axisList the anabolic and androgenic effects of testosteroneSexual reproduction results in offspring that are genetically different from one another and from their parents. Describe four mechanisms that produce this genetic variation. Do any of these mechanisms occur in asexualreproduction?
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