Description : Assertion : Chorionic gonadotrophin prevents corpus luteum from involuting. Reason : It has the property similar to luteinzing hormone.
Last Answer : Assertion : Chorionic gonadotrophin prevents corpus luteum from involuting. Reason : It has the property ... If both Assertion and Reason are false.
Description : A hormone produced by corpus luteum and placenta, concerned with relaxation of pelvis tissue is (A) HCG (B) Chorionic somatommotropin (C) Relaxin (D) Progestins
Last Answer : Answer : C
Description : The main function of mammalian corpus luteum is to produce (a) estrogen only (b) progesterone (c) human chorionic gonadotropin (d) relaxin only.
Last Answer : (b) progesterone
Description : During pregnancy, corpus luteum, having secreted increasing quantities of progesterone that helps build up endometrium of the uterus, suddenly declines in functioning in the (a) 14th week (b) 16th week (c) 11th week (d) 12th week
Last Answer : Ans:(d)
Description : Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus ... of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens
Last Answer : (c) Leydig’s Androgen Initiates the cells production of sperms
Description : Which one of the following is not the function of placenta? (a) Facilitates removal of carbon dioxide and waste material from embryo (b) Secretes oxytocin during parturition (c) Facilitates supply of oxygen and nutrients to embryo (d) Secretes estrogen
Last Answer : (b) Secretes oxytocin during parturition
Description : Distingeration of corpus luteum occurs due to inhibiton of secretion of hormone
Last Answer : Distingeration of corpus luteum occurs due to inhibiton of secretion of hormone A. LTH B. FSH C. Progesterone D. LH.
Description : Assertion : In post natal life , oocyte development occurs in mature follicle Reason : After ovulation , Graafian follicle transforms in corpus luteum
Last Answer : Assertion : In post natal life , oocyte development occurs in mature follicle Reason : After ovulation , ... D. If both Assertion & Reason are False.
Description : Yellow corpus luteum occurs in a mammals in
Last Answer : Yellow corpus luteum occurs in a mammals in A. Heart to initiate heart beat B. Skin ... cerebral hemispheres D. Ovary for secretion of progesterone.
Description : Is there exchange of cells between the mother and the fetus through the placenta ?
Last Answer : Under normal conditions, there is no passage of cells across the placenta during gestation. The placenta has a smooth mucosa separating the richly vascularized region in contact with the mother ... placental barrier forbids the passage of cells. Image Diversity: umbilical cord placental barrier
Description : The Miocene, Eocene and Paleocene epoches belong t what geologic period on the Phanerozoic Time Scale? Is it the: w) Devonian x) Permian y) Triassic (pron: try-as-ick) z) Tertiary
Last Answer : ANSWER: Z -- TERTIARY
Description : On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian
Last Answer : ANSWER: Z -- SILURIAN
Description : A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)
Last Answer : ANSWER: Y -- LENTIC COMMUNITY
Description : An open-ocean community is also called a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thik) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)
Last Answer : ANSWER: W -- PELAGIC COMMUNITY
Description : An animal which consumes plant and animal matter i called: a) a carnivore b) a saprophytic (pron: sap-roe-fit-ick) c) an omnivore d) an herbivore
Last Answer : ANSWER: C -- AN OMNIVORE
Description : Between the layers of phospholipids in a cell membrane, there is an area that is: a) hydrophobic (pron: high-dro-fo-bick) b) hydrophillic (pron: high-dro-fill-ick) c) hygroscopic (pron: high-grow-scop-ick) d) hygrolipic (pron: high-grow-lip-ick)
Last Answer : ANSWER: A -- HYDROPHOBIC
Description : Short-lived immunity acquired from mother to fetus across placenta or through mother’s milk to the infant is categorised as (a) active immunity (b) passive immunity (c) cellular immunity (d) innate non-specific immunity.
Last Answer : (b) passive immunity
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different
Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different
Description : The hormone causing growth of the endometrium (pron: en-doe-me-tree-um) is: a) androgen (pron: ann-drah-jen) b) leutenizing hormone (pron: lew-ten-I-zing) c) estrogen d) prolactin
Last Answer : ANSWER: C -- estrogen
Description : Assertion : Estrogen level is high during the follicular phase of menstrual cycle . Reason : During this phase corpus luteum secrete large amount of e
Last Answer : Assertion : Estrogen level is high during the follicular phase of menstrual cycle . Reason : During this ... D. If both Assertion & Reason are False.
Description : Draw a diagrammatic sectional view of human ovary showing different stages of oogenesis along with corpus luteum. (ii) Where is morula formed in human? Explain the process of its development from zygote. -Biology
Last Answer : (i) Sectional view of human ovary. (ii) Morula is formed in the (a)Isthmus of the oviduct (Fallopiantube). (b)The zygote undergoes mitotic divisions in quick succession called cleavage, forming 2, 4 ... 8-16 blastomeres is called a morula and the inner cell mass gets ready to form the embryo proper.
Description : What is corpus luteum? -Biology
Last Answer : answer:
Description : What is corpus luteum ?
Last Answer : : The part of the graphene follicle that is in the ovary after ovulation is called corpus lutea .
Description : During pregnancy degeneration of corpus luteum is prevented by the hormone
Last Answer : During pregnancy degeneration of corpus luteum is prevented by the hormone A. hCG B. hPL C. LH, estrogen and estradiol D. Relaxin.
Description : Corpus luteum releases
Last Answer : Corpus luteum releases A. Androgen B. Progesterone C. Estrogen D. Both B and C.
Description : Which hormone is not produced by corpus luteum
Last Answer : Which hormone is not produced by corpus luteum A. Progesterone B. Estradiol C. Inhibin D. Relaxin
Description : Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to maintain pregnancy.
Last Answer : Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to ... A. A B. B C. C D. D
Description : Corpus luteum produces
Last Answer : Corpus luteum produces A. Lutenizing hormone B. Progesterone C. Luteotrophic hormone D. Inhibin.
Description : Assertion : If fertilization dies not occur than the corpus luteum begins to degenerate . Reason : The levels of progesterone and estrogen decline due
Last Answer : Assertion : If fertilization dies not occur than the corpus luteum begins to degenerate . Reason : The ... D. If both Assertion & Reason are False.
Description : Assertion : After ovulation ruptured graafian follicle transforms into corpus luteum . Reason : Corpus luteum act as endocrine gland and it is stable
Last Answer : Assertion : After ovulation ruptured graafian follicle transforms into corpus luteum . Reason : Corpus ... If both Assertion & Reason are False.
Description : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High concentration of progesterone is present in proliferati
Last Answer : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High ... . If both Assertion & Reason are False.
Description : Assertion : After fertilization corpus luteum is stable till parturition . Reason : After 3 months of intrauterine , life it dominantly secretes proge
Last Answer : Assertion : After fertilization corpus luteum is stable till parturition . Reason : After 3 months of ... D. If both Assertion & Reason are False.
Description : In mammals corpus luteum is found in which organ
Last Answer : In mammals corpus luteum is found in which organ A. Brain B. Ovary C. Liver D. Eyes
Description : In which phase of menstrual cycle Graafian follide transform as the corpus luteum.
Last Answer : In which phase of menstrual cycle Graafian follide transform as the corpus luteum. A. Luteal B. Proliferation C. Follicular D. Growth
Description : The main function of mammalian corpus luteum is to produce:
Last Answer : The main function of mammalian corpus luteum is to produce: A. estrogen only B. progesterone C. human chorionic gonadotropin D. relaxin only
Description : Corpus luteum is
Last Answer : Corpus luteum is A. Excretory B. Endocrine C. Digestive D. Reproductive
Description : Which induces the development of corpus luteum :
Last Answer : Which induces the development of corpus luteum : A. LH B. Oestrogen C. FSH D. LTH
Description : In case of nonfertilization , corpus luteum
Last Answer : In case of nonfertilization , corpus luteum A. Stops secreting progesterone B. Changes to corpus ... producing progesterone D. None of the above
Description : Corpus luteum develops from
Last Answer : Corpus luteum develops from A. Oocyte B. Nephrostome C. Graafian follicle D. Antrum
Description : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH production.
Last Answer : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH ... D. If both Assertion and Reason are false.
Description : During late pregnancy, the major source of progesterone is (A) Adrenal cortex (B) Placenta (C) Corpus luteum (D) Graafian follicles
Last Answer : Answer : B
Description : The production of progesterone by corpus luteum cell is stimulated by (A) LH (B) TSH (C) ACTH (D) MSH
Last Answer : Answer : A
Description : Blood pressure is controlled by – (1) Adrenal gland (2) Thyroid gland (3) Thymus (4) Corpus luteum
Last Answer : (1) Adrenal gland Explanation: Adrenaline directly affects, regulates and determines the body's ability to maintain a healthy blood pressure. When the adrenal gland becomes damaged or ... greatly increases blood pressure levels, causing severe headaches, weight loss and other serious problems.
Description : The mammalian corpus luteum produces (a) luteotrophic hormone (b) luteinising hormone (c) estrogen (d) progesterone.
Last Answer : (d) progesterone.
Description : After ovulation Graafian follicle regresses into (a) corpus artesia (b) corpus callosum (c) corpus luteum (d) corpus albicans.
Last Answer : (c) corpus luteum
Description : Which set is similar? (a) Corpus luteum - Graafian follicles (b) Sebum - Sweat (c) Bundle of His - Pacemaker (d) Vitamin B7 - Niacin
Last Answer : a) Corpus luteum - Graafian follicles
Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely? (a) Corpus luteum will disintegrate. (b) Progesterone secretion rapidly declines. (c) Estrogen secretion further increases. (d) Primary follicle starts developing.
Last Answer : (c) Estrogen secretion further increases.
Description : Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female? (a) Maintenance of the hypertrophical endometrial lining (b) ... the blood stream (c) Retention of well-developed corpus luteum (d) Fertilisation of the ovum
Last Answer : (b) Maintenance of high concentration of sex- hormones in the blood stream