Which of the following is NOT one of the events leading to male sex-determination in humans?   The Wolffian ducts are degraded. TDF and SF1 stimulate transcription of SOX9. Testosterone is produced, which stimulates the development of male reproductive structures and other male secondary characteristics. Mullerian-Inhibiting Hormone (MIH) is produced. The SRY gene is expressed to produce Testes-Determining Factor (TDF).

Q: Between puberty and menopause, a biological woman in good health makes  A)testosterone but not…

A: There are two most important female sex hormones: Estrogen Progesterone

Q: Living organisms that are capable of producing both egg and sperm have both male and female…

A: Egg and sperm are two kinds of reproductive cells, sometimes known as gametes. Each carries half of…

Q: Spermatogenesis usually occurs during the ___________ and continues in the _________ stage in some…

A: * spermatogenis is the process of formation of sperm from germ cells in semniferous tubules of…

Q: Spermatogenesis usually occurs during the ___________ and continues in the _________ stage in some…

A: Note - We are supposed to answer 3 subpart according to our guidelines. Please repost other…

Q: Which of the following is TRUE about the mechanism of sex determination? A) The product of the SRY…

A: Human sex is controlled by the presence or absence of a Y chromosome with a utilitarian SRY quality.…

Q: a.) The conversion of the genital ridge into the bipotential gonad requires the Sf1, Wt1, and Lhx9…

A: Sex determination : There are certain genes which plays important role in sex determination. But…

Q: In positive mechanism, which of the following will happen if there is an increase production of…

A: Menstrual cycle It refers to the monthly cycle of alterations taking place in the ovaries and the…

Q: The change of successful fertilization is approximately 18% in every cycle. Why does this statistic…

A: c. Vagina is very acidic, killing many sperms. this statement seems to be false.

Q: The graph above shows the estrogen and progesterone levels of an individual during a menstrual cycle…

A: The menstrual cycle occurs in the uterus and the ovary as a part of making sexual reproduction…

Q: Which of the following is NOT TRUE? A) Menopause is marked by elevated levels of gonadotropins. B) A…

A: Menstruation: Menstruation is the periodic or cyclic discharge from the uterus through the vagina of…

Q: which of the following statement is NOT about follicle-stimulating hormones (FSH) in the male…

A: Follicle-stimulating hormones (FSH) stimulates growth of testes and also intensify the production of…

Q: Luteinizing hormone (LH) and follicle stimulating hormone (FSH) are essential in female reproduction…

A: Introduction :- The pituitary gland, a tiny gland behind the brain, produces LH. LH is essential for…

Q: proposed reason for why women go through menopause is _____.

A: The phenomena of Aging differ widely among living things. There are many Evolutionary explanations…

Q: One of the roles of follicle-stimulating hormones(FSH) in the female reproductive system is…

A: The follicle stimulating hormone is secreted from the pituitary gland when the hypothalamus released…

Q: Using the following hormone choices, which of the following puts the hormones of the female…

A: The main aim of menstrual cyle is to secrete ova for fertilization. The four phases of the menstrual…

Q: Select the conditions that would be present in a genetic male fetushaving a mutation that causes the…

A: In the embryonic development of the fetus, the sex determining factors/hormones play a major role.…

Q: Which of the following statements is NOT true concerning the hormonal control over the male…

A: The male and female reproductive cycles are controlled by hormones released from the hypothalamus,…

Q: Which of the following scenarios does NOT describe an event that leads to the conceptions of twins?…

A: While twin pregnancies can occur by some coincidence, there are a few factors that may expand your…

Q: The male gonads, or ___________ produce sperm in highly coiled tubes called _ _____. The female…

A: Humans are sexually reproducing and viviparous. The reproductive events in humans include formation…

Q: Which of the following statements does NOT correctly describe the role of inhibin in the male…

A: Introduction :- The biological system made up of all the anatomical organs involved in sexual…

Q: Which of the following events does NOT occur initially during a female reproductive cycle? *…

A: The correct option is A the progesterone promotes the secretory phase Normal vaginal bleeding that…

Q: What is the role of the SRY gene on the Y chromosome? a. Production of Mullerian hormone proteins b.…

A:

Q: Which of the following is true regarding the determinants of sexual development: the presence…

A: Introduction - During fetal development the sex organs that is gonads of the fetus are…

Q: A- BC C- D

A: Reproductive system and urinary system are connected in such a way in these both system use common…

Q: Right before the ovulation, the maturate follicle secretes high levels of estrogen which switches…

A: Estrogen, is a category of sex hormone responsible for the development and regulation of the female…

Q: Which of the following is most likely to occur as an immediate result of an injection of estradiol…

A: The estradiol is a form of estrogen that is the female reproductive hormone. It is responsible for…

Q: For numbers 9-10, refer to the choices below. A. To allow corpus luteum to disintegrate leading to…

A: Introduction : The menstrual cycle is the female reproductive cycle in which the uterine lining…

Q: The hormones in combined estrogen-progestin birth control pills prevent pregnancy primarily by…

A: For fertilization menstrual cycle is very important because it helps in the release of ova or egg…

Q: Fill in the following table with the words from the list below.   ovary | B. oviducts | C. vagina…

A: The internal and exterior sex organs that act in the generation of new children make up the female…

Q: Why does the estrogen released at the follicular phase inhibit FSH levels by a negative feedback…

A: FSH and LH are gonadotropin hormones which are secreted from the anterior pituitary. They play major…

Q: produce inhibin and to start spermatogenesis.  B. Increased levels of inhibin released by the…

A: Androgens are a bunch of hormones that play a task in male traits and procreative activity. Present…

Q: Discuss whether the following individuals (1) have male or female gonads, (2) are phenotypically…

A: with respect to the following individuals : a. XY, homozygous for a recessive mutation in the…

Q: Which of the following structure is controlling the rate of spermatogenesis? a.Sertoli cells…

A: Sertoli cells are a type of somatic cell. Leydig cells are responsible for the production of…

Q: Hypogonadism is a condition where the body does not produce enough testosterone. The symptoms of…

A: Testosterone - It is the primary sex hormone produced by testicles in men. It plays a major role in…

Q: Match four of the hormones of the negative feedback numbered above with their function given below.…

A: 1. LH (luteinising hormones), Stimulates the release of testosterone.  The pituitary gland produces…

Q: Which of the following statement does NOT describe the role of progesterone in the female…

A: Progesterone is a hormone which is secreted by the placenta. ovaries and adrenal gland. Sometimes…

Q: What is a tissue or group of tissues that make and releases hormones Which hormones are found in the…

A: HORMONES are chemical messenger that travel in our blood and reach to tissue and organ.IT work…

Q: During the menstrual cycle, the DEGRADATION of the corpus luteum causes what?    1. The decrease of…

A: Pregnancy in women is greatly controlled by various hormones. The level of the hormone increase or…

Q: Which of the following correctly describes the symptoms of a 10-year-old girl with a teratoma tumour…

A: Rare tumors of pituitary glands are, Teratomas Germinomas Choriocarcinomas Teratomas are tumors of…

Q: Match four of the hormones of the negative feedback numbered above with their function given below.…

A: There are various hormones that are responsible for controlling menstrual cycle in female . These…

Q: in developing and maintaining the female reproductive organs and secondary sexual characteristics…

A: Generally the female reproductive system encompasses  the ovarian and uterine cycles;along with it…

Q: What causes an embryo to develop female external genitals?A. A high ratio of estradiol to…

A: Cause of an embryo develop external genitals depends on testosterone level and not on estradiol

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: Identify the three (3) differences between the frog and mammalian testis, and three (3) differences…

A: Triadobatrachus is the earliest known "proto-frog" from Madagascar's Early Triassic, although…

Q: Which of the following statement does NOT describe the role of luteinizing hormones (LH) in the…

A: Answer is B. Explanation: Luteinising hormone (LH) plays an important role in female sexual…

Q: A study divides healthy females into two groups (A and B). Both groupsare composed of those who have…

A: Introduction Human females have menstrual cycle every 28/30 days. It is cyclic change in hormonal…

Q: Which of the following causes the bleeding (menstruation) during the menstrual cycle? Reduced…

A: Menstruation is the bleeding of uterus due to the loss of ovary. It usually take place when the egg…

Q: Which of the following hormones demonstrates more than one marked peak during the female…

A: Menstrual cycle is the cycle in which uterus grows and shed a lining  called endometrium.It occurs…