Description : In human females. Meiosis II is not completed until
Last Answer : In human females. Meiosis II is not completed until A. Puberty B. Fertilization C. Uterine implantation D. Birth.
Last Answer : In human females. Meiosis II is not completed until A. birth B. puberty C. fertilization D. uterine implantation
Description : (i) Mention the event that induces the completion of the meiotic division of the secondary oocyte. (ii) Trace the journey of the ovum from the ovary, its fertilisation and further development until the implantation of the embryo. -Biology
Last Answer : (i)Secondary oocyte completes meiosis-ll only when a sperm enters its cytoplasm. It forms a larger cell, the ootid and a small cell, the second polar body. (ii)The secondary oocyte is ... and inner cell mass.The trophoblast attacheds to endometrium (implantation) and blastocyst gets embedded in it.
Description : (i)Explain the events taking place at the time of fertilisation of an ovum in a human female. (ii)Trace the development of the zygote up to its implantation in the uterus. (iii)Name and draw a labelled sectional view of the embryonic stage that gets implanted. -Biology
Last Answer : (i)In humans, the fertilisation of ovum takes place in ampullary-isthmic junction of Fallopian tube. The events that occur during the process of fertilisation are: (a) The sperm reaches the ... endometrium of the uterus. This is called implantation.(iii) Blastocyst stage implants in the uterus.
Description : Study the given figure below and answer the question that follow important-questions-for-class-12-biology-cbse-fertilisation-pregnancy-and-embryonic-development-t-33-3 (i)Name the stage of human embryo the ... implantation in the uterus. (iv)Where are the stem cells located in this embryo? -Biology
Last Answer : (i)The stage is blastocyst. (ii) A—Trophoblast. It helps in attachment to endometrium during implantation and provides nourishment to developing embryo. (iii) Inner cell mass acts as precursor to embryo ... into ectoderm and endoderm. (iv) Stem cells are located in inner cell mass of embryo.
Description : (a) IN WHICH PART OF HUMAN FEMALE REPRODUCTIVE SYSTEM DO THE FOLLOWING EVENTS TAKE PLACE. (i) RELEASE OF FIRST POLAR BODY (ii) RELEASE OF SECOND POLAR BODY (iii) FERTILISATION (iv) IMPLANTATION (b) NAME TWO HORMONES SECREATED ONLY DURING PREGNANCY.
Last Answer : ANS (a) (i) OVARY (ii) FALLOPIAN TUBE (iii) AMPULLA-ISTHAMUS JUNCTION OF FALLOPIAN TUBE (iv) ENDOMETRIUM LINING OF UTERUS (b) HUMAN CHORIONIC GONADOTROPIN AND HUMAN PLACENTAL LACTOGEN
Description : In human female, the blastocyst (a) forms placenta even before implantation (b) gets implanted into uterus 3 days after ovulation (c) gets nutrition from uterine endometrial secretion only after implantation (d) gets implanted in endometrium by the trophoblast cells.
Last Answer : (d) gets implanted in endometrium by the trophoblast cells.
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 : Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the placenta in described as deciduous type Cor
Last Answer : Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the ... and R is a correct explanation to S.
Description : Cu ions released from copper-releasing intra uterine devices (IUDs) (a) make uterus unsuitable for implantation (b) increase phagocytosis of sperms (c) suppress sperm motility (d) prevent ovulation.
Last Answer : suppress sperm motility
Description : What is the work of copper-T? (a) To inhibit ovulation (b) To inhibit fertilisation (c) To inhibit implantation of blastocyst (d) To inhibit gametogenesis
Last Answer : c) To inhibit implantation of blastocyst
Description : n human adult females oxytocin (a) stimulates pituitary to secrete vasopressin (b) causes strong uterine contractions during parturition (c) is secreted by anterior pituitary (d) stimulates growth of mammary glands.
Last Answer : (b) causes strong uterine contractions during parturition
Description : Which of the following approaches does not give the defined action of contraceptive? (a) Hormonal contraceptives Prevent/retard entry of sperms, prevent ovulation and fertilisation (b) ... devices Increase phagocytosis of sperms, suppress sperm motility and fertilising capacity of sperms
Last Answer : (b) Vasectomy Prevents spermatogenesis
Description : Puberty occurs in females at the age of
Last Answer : Puberty occurs in females at the age of A. 8-10 years B. 11-14 years C. 15-17 years D. 18-20 years
Description : The technique called Gamete Intra Fallopian Transfer (GIFT) is recommended for those females (a) who cannot produce an ovum (b) who cannot retain the fetus inside uterus (c) whose cervical ... narrow to allow passage for the sperms (d) who cannot provide suitable environment for fertilisation.
Last Answer : (a) who cannot produce an ovum
Description : Which of the following statements is correct with reference to a test tube baby? (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother ... . (d) Fertilisation of the egg and growth of the embryo are affected in a large test tube.
Last Answer : (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother where the gestation is completed.
Description : Assertion : Menarche starts around the age of puberty . Reason : After birth oocyte is matured and developed to form Graafian follicle .
Last Answer : Assertion : Menarche starts around the age of puberty . Reason : After birth oocyte is matured and ... D. If both Assertion & Reason are False.
Description : The testes normally descend into the scrotum about (a) 6 months into pregnancy (b) the time of birth (c) the age of 3 months (d) the time of puberty
Last Answer : Ans:(b)
Description : The maximum number of oogonia are formed at what age of female life: a) One month intrauterine. b) Five month intrauterine. c) At birth. d) At puberty. e) At 21 years of age.
Last Answer : b) Five month intrauterine.
Description : What is the chromosome number found in humans after meiosis is completed?
Last Answer : Need answer
Description : What is uterine ablation and why would one opt for it over birth control or a hysterectomy?
Last Answer : A uterine ablation os probably not an option that you want to consider if you want to have a child. When performing a uterine ablation the surgeon actually detroys the uterine lining. As a ... procedure, scar tissues forms. It is not usually possible to become pregnant after a uterine ablation.
Description : The hormone required for uterine muscle contraction for child birth is (A) Progesterone (B) Estrogen (C) Oxytocin (D) Vasopressin
Last Answer : Answer : C
Description : Given below are four methods (A-D) and their modes of action (i-iv) in achieving contraception. Select their correct matching from the four options that follow. Method Mode of Action A. The pill (i) Prevents sperms reaching cervix B. Condom ... D - (ii) (d) A - (iv), B - (i), C - (ii), D - (iii)
Last Answer : A – (iii), B – (i), C – (iv), D – (
Description : Would the US be happier if future females could be genetically created not to have nipples until seven months pregnant?
Last Answer : I think you're focusing the solution on the wrong side of the issue. The nipple-phobes need to deal with their issues. The fact that they overly sexualize nipples is not anyone's problem but ... Women have nipples they provide milk to our babies. Somehow the first world seems to have forgotten that.
Description : Five male teenagers and five female teens each step into ten separate circles. The males make disparaging remarks to the females while pointing their thumbs downward, and the female teens respond to ... loudly, until only one person is left who is legally performing the maneuver within t -Riddles
Last Answer : The two five-member teams are competing in a hula-hoop endurance contest. The theme song played during the competition is one of The Chipmunks greatest hits called: The Chipmunk’s Hula-Hoop Christmas Song.
Description : August 2, 1776 (The final draft was completed July 4, but it wasn’t actually signed until nearly a month later).
Last Answer : Who do historians believe created the first American flag?
Description : Which of the following statements concerning audit planning is incorrect a. Planning is a continual and iterative process. b. Planning is a discrete phase of an audit. c. In a recurring ... activities and audit procedures that are to be completed prior to the performance of further audit procedures
Last Answer : Planning is a discrete phase of an audit
Description : Which of the following is not an ethical guideline for conducting research with humans? a. Getting informed consent of the participant b. Telling participants they must continue until the study ... Keeping participants' identity anonymous d. Telling participants they are free to withdraw at any time
Last Answer : b. Telling participants they must continue until the study has been completed
Description : Delta Air Lines wishes to purchase five new aeroplanes. Management seeks information from several aircraft manufacturers, screens the offers, and discusses price and terms of sale with the preferred company until a ... method of pricing is: A)administered. B)sealed bid. C)open bid. D)negotiated.
Last Answer : D)negotiated.
Description : Activities that cannot be started until one or more of the other activities are completed, are called.......................................... a. Dummy activities b. Initial activities c. Successor activities d. Predecessor activities
Last Answer : c. Successor activities
Description : In females, vigorous contraction of uterus at the time of child birth and milk ejection from the mammary gland is due to
Last Answer : In females, vigorous contraction of uterus at the time of child birth and milk ejection from the mammary gland is due to
Description : $ Appearance of pubic hair in human beings indicates the onset of puberty. ! Pubis is a bone of the pelvic girdle of human beings.
Last Answer : $ Appearance of pubic hair in human beings indicates the onset of puberty. ! Pubis is a bone of the pelvic ... is wrong D. If both As and R are wrong.
Description : Name the embryonic stage that gets implanted in the uterine wall of a human female. -Biology
Last Answer : Blastocyst gets implanted in the uterine wall.
Description : Identify the human developmental stage shown as well as the related right place of its occurrence in a normal pregnant woman and select the right option for the two, together. Developmental Site of ... tube (c) Blastocyst - Uterine wall (d) 8-celled morula - Starting point of Fallopian tube
Last Answer : (c) Blastocyst – Uterine wall
Description : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?
Last Answer : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii ... All are methods of conservation of extinct organisms.
Description : Given below are the events that lead to pregnancy and development of embryo i. fertilisation of egg ii. maturation of egg iii. release of egg iv. embedding of embryo in uterus a) i, ii, iii, iv b)ii, i, iii, iv c)i, iv , ii, iii d)ii, iii, i , iv,
Last Answer : d)ii, iii, i , iv,
Description : Why is PGD (pre-implantation genetic diagnosis) a bad thing to use for gender selection of your child?
Last Answer : Well do you think in China any girls would be born, they already think of having a girl as something bad. So how many couples in China would opt to have a girl vs a boy, do you think it ... if we start doing this type of selection here in the US then all other countries are going to follow suit.
Description : Ladies, please help. Implantation bleeding?
Last Answer : It’s really hard to say. More than 75% of pregnancies result in early termination, usually before the person realizes she was pregnant.
Description : What is Implantation ?
Last Answer : Implantation is the process by which the uterine endometrium is placed in the zygote blastocyst state after fertilization.
Description : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . Reason : The blastocyst , along with zona pel
Last Answer : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . ... . If both Assertion & Reason are False.
Description : During Implantation, the blastocyst beco,es embedded in which layer of the uterus?
Last Answer : During Implantation, the blastocyst beco,es embedded in which layer of the uterus? A. Trophoblast B. Endometrium C. Myometrium D. Perimetrium
Description : What are the advantages and limitations implantation of ion implantation?
Last Answer : Advantages: • Accurate control over doping • Very good reproducibility • Precise resistance value • A room temperature process Limitations: • Annealing at higher temperature is required for avoiding the crystal damage • The possibility of dopant implanting through various layers of wafer.
Description : The function of copper ions in copper releasing IUDs is (a) they inhibit gametogenesis (b) they make uterus unsuitable for implantation (c) they inhibit ovulation (d) they suppress sperm motility and fertilising capacity of sperms.
Last Answer : (d) they suppress sperm motility and fertilising capacity of sperms.
Description : Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH ... synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.
Last Answer : (c) High level of hCG stimulates the synthesis of estrogen and progesterone.
Description : Ectopic pregnancies are referred to as (a) implantation of defective embryo in the uterus (b) pregnancies terminated due to hormonal imbalance (c) pregnancies with genetic abnormality (d) implantation of embryo at site other than uterus.
Last Answer : (d) implantation of embryo at site other than uterus.
Description : For the implantation of fertilize ova uterus secret which harmone?
Last Answer : Estrogen
Description : The following contraceptive acts primarily by interfering with implantation of blastocyst: A. Gossypol B. Centchroman C. Combined estrogen-progestin pill D. Phased pill
Last Answer : B. Centchroman
Description : The function of copper ions in copper releasing IUD's is : (1) They inhibit gametogenesis (2) They make uterus unsuitable for implantation (3) They inhibt ovulation (4) The suppress sperm motility and fertilising capacity of sperms
Last Answer : (4) The suppress sperm motility and fertilising capacity of sperms
Description : In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was (1) High level of circulating HCG to stimulate estrogen and progesterone synthesis (2) ... endometrial thickening (4) High levels of FSH and LH in uterus to stimulate endometrial thickening
Last Answer : (1) High level of circulating HCG to stimulate estrogen and progesterone synthesis
Description : What is dental implantation and how much does it cost?
Last Answer : What is dental implantation and how much does it cost? Prosthetics issues in our country have long been solved with the help of implantation. However, there is a fairly significant number of different ... future crown. The last step is the placement of the abutment and the anchoring of the crown.