ow may positive feedback happen during parturition cycle (NOT uterine contraction cycle)? a) 0, b)1, c)2, d)3, e)4

Q: Which of the following is a circadian rhythm? a) approximately monthly menstrual cycles in womenb)…

A: The objective of the question is to identify which of the given options is a circadian rhythm.…

Q: The Mullerian ducts in female mammalian embryos develop into…   a)   The vas deferens   b)   The…

A: During embryonic development, the reproductive system goes through a complex differentiation process…

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: Which of the following hormones stimulates the production of breast milk? a) Estrogen (estradiol)…

A: Estrogen stimulates increased prolactin production but inhibits prolactin's effect on the mammary…

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: Placenta ... a) ... develops from trophoblast cells. b) ... develops from embryoblast cells. c)…

A: Pregnancy occurs when the male gamete sperm fuses and fertilizes with the female egg that is…

Q: What hormone is measured in an ovulation test? a) Progesterone b) LH (luteinizing hormone) c)…

A: Ovulation occurs approximately 14 days after the first day of menstruation. During ovulation, a…

Q: Which list is the correct order that sperm must pass through to get to egg?

A: Both the male and female reproductive systems play an important role in the development of sex…

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: 14.)Which hormone is inhibited during pregnancy in order to prevent contractions of the uterus? a.)…

A: Introduction: Hormones are chemical compounds that function in the body as messenger molecules. They…

Q: The point mutation in the Bone Morphogenetic Protein receptor 1B (BMPR-1B) appears to have no…

A: The Bone Morphogenetic Protein receptor 1B (BMPR-1B) is a gene that encodes a transmembrane receptor…

Q: 35. The differentiation of the primitive gonads into testes or ovaries depends on the presence or…

A: The Y chromosome have SRY gene which is referred to as the sex determination region. This is present…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

Q: 69. The greatest number of estrogen-secreting cells within a normal corpus luteum derives from which…

A: The corpus luteum is a fundamental yet temporary organ that assumes a important part in fertility…

Q: Monozygotic twins develop from a) one egg, fertilized by one sperm b) one egg, fertilized by two…

A:

Q: Into which structures do the trophoblast cells of the developing embryo, differentiate?   a)   The…

A: The fusion of male and female gamete produces zygote. This process is known as fertilisation. Zygote…

Q: he placenta develops from:  Question 26 options: a)  Maternal tissue only b)  Both fetal and…

A: The placenta is an organ that is developed in the female body during the gestation period. Its…

Q: How many negative feedback happen during parturition cycle (NOT uterine contraction cycle)? Exclud…

A: The answer to this question is based on the fact that what type of feedback mechanisms are exhibited…

Q: Many steroids abusers become infertile because of: A) Lack of testosterone B ) High levels of…

A: Many men take steroids to promote fast muscle growth to look sexually attractive and achieve more…

Q: This organ secretes which of the following: (A) spermatozoa (B) zinc and spermicine (C)…

A: The male reproductive system consists of a number of organs that play a vital role in the…

Q: The presence of which of the following hormones is tested for pregnancy a) Human chorionic…

A: Female body undergoes various hormonal changes during pregnancy. Hormonal fluctuations are very…

Q: What is the specific hormone that functions primarily during pregnancy? A) Estradiol  B) Estriol…

A: There are two hormones released by ovaries: estrogen and progesterone. Progesterone helps in the…

Q: During which trimester does the risk of spontaneous miscarriage decrease significantly? A) First B)…

A: A spontaneous miscarriage or abortion occurs before the fetus can live outside the womb. This…

Q: 1) Match the following terms with their location on the diagram of the male reproductive system. 8…

A: The male reproductive system is responsible for producing, storing, and delivering sperm. It…

Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…

A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…

Q: In the absence of sex hormones during fetal development, the human body will: A) develop a…

A: The objective of the question is to understand the role of sex hormones in the development of the…

Q: Which of the following is likely to happen when you remove the testes of an adult male rat? a)…

A: A hormone called testosterone is essential for the growth and development of male reproductive…

Q: What immediate effect does the SRY gene have on a developing fetus?   A) It directs the gonads to…

A: The sex of the fetus is determined before fertilization which depends on the presence of a Y…

Q: The stage of prenatal development in which there is rapid growth and all of the organ systems are…

A: Developmental biology is the branch of biology in which the development of the organisms from the…

Q: What is the period from the woman's ovulation to the start of menstruation called? a) The uterine…

A: There are two types of reproductive cycles in mammals. These are the Estrous cycle and the Menstrual…

Q: Which of the following primary germ layers nervous tissue develops from? a ) yolk sac b) endoderm…

A: The life of a human being begins in the womb as an embryo and undergoes various developmental stages…

Q: hich structure is the outermost extra-embryonic membrane? A ) Placenta ‘ B ) Yolk sac D ) Chorion

A: An extraembryonic membrane is one among the membranes that assist within the development of the…

Q: Meiosis II of spermatogenesis yields a) Primary spermatocyces www C) Spermatogonia d) Spežmatids 田…

A: Spermatogenesis is the process of producing sperms from the male germinal cell. It is a meiosis…

Q: What may be the most likely reason for the existence of polar bodies? A) They act as a…

A: The production of egg and sperm is called gametogenesis. This takes place during meiosis where the…