Description : The most vulnerable period of pregnancy for the causation of foetal malformations due to drugs is: A. 18-55 days of gestation B. 56-84 days of gestation C. Second trimester D. 36 weeks onwards
Last Answer : A. 18-55 days of gestation
Description : Assertion : hCG , hPL and relaxin are produced in women only during pregnancy . Reason : These hormones are produced by placenta .
Last Answer : Assertion : hCG , hPL and relaxin are produced in women only during pregnancy . Reason : These hormones ... . D. If both Assertion & Reason are False.
Description : In simplest type of placenta. Six barriers separate mat ernal blood from foetal blood. How many barriers are lost in human placenta?
Last Answer : In simplest type of placenta. Six barriers separate mat ernal blood from foetal blood. How many barriers ... form two haploid nuclei. C. three D. four
Description : Assertion : Foetal disorders can be diagnosed by chrionic villi sampling . Reason : Karyotyping cells be done by mitotically dividing cells of chrioni
Last Answer : Assertion : Foetal disorders can be diagnosed by chrionic villi sampling . Reason : Karyotyping cells ... If both the assertion and resson are false.
Description : Signals from fully developed fetus and placenta ultimately lead to parturition which requires the release of (a) estrogen from placenta (b) oxytocin from maternal pituitary (c) oxytocin from fetal pituitary (d) relaxin from placenta.
Last Answer : (b) oxytocin from maternal pituitary
Description : Signals for parturition originate from (a) both placenta as well as fully developed fetus (b) oxytocin released from maternal pituitary (c) placenta only (d) fully developed fetus only.
Last Answer : both placenta as well as fully developed fetus
Description : .The fetal ejection reflex in humans triggers the release of (a) oxytocin from fetal pituitary (b) human chorionic gonadotropin (hCG) from placenta (c) human placental lactogen (hPL) from placenta (d) oxytocin from maternal pituitary.
Last Answer : (d) oxytocin from maternal pituitary.
Description : Signals for parturition originate from (1) Fully developed foetus only (2) Both placenta as well as fully developed foetus (3) Oxytocin released from maternal pituitary (4) Placenta only
Last Answer : (2) Both placenta as well as fully developed foetus
Description : Foetal Movements and spperance of hair on head occur in…..month of pregnancy
Last Answer : Foetal Movements and spperance of hair on head occur in…..month of pregnancy A. Fifth B. Sixth C. Third D. Fourth
Description : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a pentamer immunoglobulin jointed by I-chain
Last Answer : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a ... D. If both the assertion and reason are false
Description : Apomictic embryos in Citrus arise from (a) synergids (b) maternal sporophytic tissue in ovule (c) antipodal cells (d) diploid egg.
Last Answer : (b) maternal sporophytic tissue in ovule
Description : Maternal sporophytic tissue in ovule
Last Answer : Maternal sporophytic tissue in ovule
Description : 2Apomictic embryos in Citrusarise from:a)Diploid eggb)Synergidsc)Maternal sporophytic tissue in ovuled)Antipdal cells
Description : What is placenta? Mention its role during pregnancy? -Biology
Last Answer : The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood.
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 : Hormones secreted by the placenta to maintain pregnancy are (a) hCG, hPL, progestogens, prolactin (b) hCG, hPL, estrogens, relaxin, oxytocin (c) hCG, hPL, progestogens, estrogens (d) hCG, progestogens, estrogens, glucocorticoids.
Last Answer : ) hCG, hPL, progestogens, estrogens
Description : Hormones secreted by the placenta to maintain pregnancy are (1) hCG, hPL, progestogens, prolactin (2) hCG, hPL, estrogens, relaxin, oxytocin (3) hCG, hPL, progestogens, estrogens (4) hCG, progestogens, estrogens, glucocorticoids
Last Answer : (3) hCG, hPL, progestogens, estrogens
Description : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . Reason : Diploid nuclear status of organism is essen
Last Answer : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . ... . D. If both Assertion & Reason are False.
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 : Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona pellucida helps the ovum to penetrate endom
Last Answer : Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona ... . If both Assertion & Reason are False.
Description : OK, how many folks on Fluther believe that pregnancy begins two weeks BEFORE conception?
Last Answer : This is further evidence of the Republican war on Science. It’s amazing how many pregnant virgins there are these days, according to the Conservatives.
Description : Placenta acts as an endocrine tissue. Justify. -Biology
Last Answer : Placenta acts as an endocrine tissue as it secretes hormones like (i) hCG (human Chorionic Gonadotropin) (ii) hPL (human Placental Lactogen) (iii) Oestrogens (iv) Progesterone
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 : A project with total budget cost of 30 crores is scheduled to be completed in 80 weeks. A periodic review was carried out at end of 60 weeks and results are as given: Budgeted cost of work performed (EV) = 17 ... crores What is the cost performance index? A.0.895 B.0.81 C.0.90 D.1.12
Last Answer : A.0.895
Description : Describe the post-zygotic events leading to implantation and placenta formation in humans. Mention any two functions of placenta. [All India 2010] or Explain the process of fertilisation in human female ... events in a sequential order up to implantation of the embryo. [Foreign 2010] -Biology
Last Answer : Post-zygotic events leading to implantation and placenta formation. After implantation of blastocyst, the finger-like projections called chorionic villi, appear on the trophoblast and is surrounded by ... acts as an endocrine gland and secretes hormones like hPL, hCG, oestrogen and progesterone.
Description : Which one takes part in formation of placenta?
Last Answer : Which one takes part in formation of placenta? A. Only trophoblast B. Only allantois C. ... and mesoderm D. Trophoblast, mesoderm and allantois.
Description : Assertion (A): Organ transplantation patients are given immunosuppressive durgs. Reason (R): Transplanted tissue has antigens which stimulate the spec
Last Answer : Assertion (A): Organ transplantation patients are given immunosuppressive durgs. Reason (R): ... If both the assertion and reason are false
Description : Assertion : Most of bones of body are cartilagenous. Reason : Connective tissue originated first during embryonic develoment.
Last Answer : Assertion : Most of bones of body are cartilagenous. Reason : Connective tissue originated first during ... D. If both Assertion & Reason are false.
Description : Assertion :- Mast cells are undiferntiated cells of connective tissue proper. Reason :- Mast cells modified to from other cells of connective tissue p
Last Answer : Assertion :- Mast cells are undiferntiated cells of connective tissue proper. Reason :- Mast cells ... D. If both Assertion & Reason are false.
Description : Assertion : Originwise hair are epithelial tissue which are of ectodermal origin. Reason : Epithelial tissue can be formed from mesoderm and endoderm
Last Answer : Assertion : Originwise hair are epithelial tissue which are of ectodermal origin. Reason : Epithelial ... . If both Assertion & Reason are false.
Description : Assertion : Perichondrium in white fibrous cartilage is absent. Reason : Perichondrium is a white fibrous connective tissue
Last Answer : Assertion : Perichondrium in white fibrous cartilage is absent. Reason : Perichondrium is a white fibrous ... . If both Assertion & Reason are false.
Description : Assertion : Epithelium cells get their nutrientes from Adjacent cells . Reason : In epithelium tissue large intercellular spaces are present
Last Answer : Assertion : Epithelium cells get their nutrientes from Adjacent cells . Reason : In epithelium tissue ... . If both Assertion & Reason are false.
Description : Assertion : Mucoid connective tissue is called as embryonic tissue. Reason : Mucoid connective tissue is mainly found in enbryonic stage .
Last Answer : Assertion : Mucoid connective tissue is called as embryonic tissue. Reason : Mucoid connective tissue is ... D. If both Assertion & Reason are false.
Description : Assertion : Glands originate from all germinal layers. Reason : All glands are composed of epithelium tissue.
Last Answer : Assertion : Glands originate from all germinal layers. Reason : All glands are composed of epithelium ... D. If both Assertion & Reason are false.
Description : Assertion: Cartilage and bone are rigid connective tissues. Reason: Blood is a connective tissue.
Last Answer : Assertion: Cartilage and bone are rigid connective tissues. Reason: Blood is a connective tissue. A. If ... D. If both Assertion & Reason are false.
Description : Assertion : Epithelia are highly regenerative. Reason : When epithelia gets damaged they regenerate more repidly then other Tissue.
Last Answer : Assertion : Epithelia are highly regenerative. Reason : When epithelia gets damaged they regenerate more ... . If both Assertion & Reason are false.
Description : Assertion : Reticular fibrous connective Tissue is called as embryonic tissue. Reason : Reticular fibrous connective tissue is mainly found in embryon
Last Answer : Assertion : Reticular fibrous connective Tissue is called as embryonic tissue. Reason : Reticular fibrous ... . If both Assertion & Reason are false.
Description : Assertion : Ureter and Urinery bladder are lined with Transitional Epithelium. Reason : Transitional Epithelium rest directly on Connective tissue .
Last Answer : Assertion : Ureter and Urinery bladder are lined with Transitional Epithelium. Reason : Transitional ... If both Assertion & Reason are false.
Description : Assertion : Lymphocyte cells of connective tissue proper are called as cart whell cels. Reason : Lymphocyte cell is largest cell of connective tissue
Last Answer : Assertion : Lymphocyte cells of connective tissue proper are called as cart whell cels. Reason : ... D. If both Assertion & Reason are false.
Description : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed by the fusion of naked protoplasts of two plant.
Last Answer : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed ... false D. If both assertion and reason are false
Description : Assertion : Somatic embros can be induced from any cell in plant tissue culture. Reason : Any living plant cell is capable of differentiating into som
Last Answer : Assertion : Somatic embros can be induced from any cell in plant tissue culture. Reason : Any ... false D. If both assertion and reason are false
Description : Assertion : In plant tissue culture somatic embryos can be induced from any plant cell. Reason : Any viable plant cell can differentiate into somatic
Last Answer : Assertion : In plant tissue culture somatic embryos can be induced from any plant cell. Reason : ... false D. If both assertion and reason are false
Description : The following statement about lithium is not correct: A. It has a sedative action in normal individuals B. It controls mania, but takes 1-2 weeks to produce the effect C. ... recurrent unipolar depression D. It can be combined with tricyclic antidepressants for refractory cases of major depression
Last Answer : A. It has a sedative action in normal individuals
Description : The structure which helps in the nutrition of the Embryo is – (1) Yolk sac (2) Amniotic membrane (3) Crypts (4) Placenta
Last Answer : (1) Yolk sac Explanation: The yolk sac is a membranous sac attached to an embryo, providing early nourishment. It functions as the developmental circulatory system of the human embryo, ... It carries out transfer of nutrients in weeks 2 and 3 when the uteroplacental circulation is established
Description : Placenta is the structure formed?
Last Answer : by the union of foetal and uterine tissue
Description : What structure attaches the embryo to the placenta?
Last Answer : ANSWER: UMBILICAL CORD
Description : The structure which helps in the nutrition of the Embryo is (1) Yolk sac (2) Amniotic membrane (3) Crypts (4) Placenta
Last Answer : Yolk sac
Description : Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. Reason: The entropy of formation of gaseous oxygen
Last Answer : Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. ... D. If both Assertion & Reason are false.