What is Implantation ?

1 Answer

Answer :

Implantation is the process by which the uterine endometrium is placed in the zygote blastocyst state after fertilization.

Related questions

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 : 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 : (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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 : In human females, meiosis-II is not completed until (a) uterine implantation (b) birth (c) puberty (d) fertilisation.

Last Answer : (d) fertilisation.

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 : (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 : 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.

Description : What is Basal Implantation?

Last Answer : What is Basal Implantation? Basal implantation is one of the most modern and least traumatic dental restoration technologies. This method is based on the implantation of specially designed implants into ... and mental disorders; the presence of swelling and inflammation in the oral cavity.

Description : Earliest visual rehabilitation occurs with: a. Phacoemulsification plus intraocular lens implantation b. Intracapsular cataract extraction plus intraocular lens implantation c. Extracapsular cataract extraction plus intraocular lens implantation d. Small incision cataract extraction

Last Answer : ANSWER: A