The second maturation division of the mammalian
ovum occurs
(a) shortly after ovulation before the ovum makes
entry into the fallopian tube
(b) until after the ovum has been penetrated by a sperm
(c) until the nucleus of the sperm has fused with
that of the ovum
(d) in the Graafian follicle following the first
maturation division.

1 Answer

Answer :

(b) until after the ovum has been penetrated by a sperm

Related questions

Description : Which one of the following is the correct matching of the events occurring during menstrual cycle? (a) Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle (b) ... ) Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone

Last Answer : (b) Secretory phase : Development of corpus luteum and increased secretion of progesterone

Description : Second maturation division of mammalian ovum occurs

Last Answer : Second maturation division of mammalian ovum occurs A. Until after sperm has penetrated ovum B. ... after ovulation before entry into fallopian tube.

Description : The second maturation division of the mammalian ovum occurs

Last Answer : The second maturation division of the mammalian ovum occurs A. In the Graafian follicle following the ... the sperm has fused with that of the ovum

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 : Extrusion of second polar body from egg occurs (a) simultaneously with first cleavage (b) after entry of sperm but before fertilisation (c) after fertilisation (d) before entry of sperm into ovum.

Last Answer : (b) after entry of sperm but before fertilisation

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 : After ovulation Graafian follicle regresses into (a) corpus artesia (b) corpus callosum (c) corpus luteum (d) corpus albicans.

Last Answer : (c) corpus luteum

Description : Meiotic division of the secondary oocyte is completed (a) prior to ovulation (b) at the time of copulation (c) after zygote formation (d) at the time of fusion of a sperm with an ovum.

Last Answer : (d) at the time of fusion of a sperm with an ovum.

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 : Which part of ovary in mammals acts as an endocrine gland after ovulation? (a) Stroma (b) Germinal epithelium (c) Vitelline membrane (d) Graafian follicle

Last Answer : (d) Graafian follicle

Description : Estrogens exert the following actions except: A. Cornification of vaginal epithelium B. Proliferation of endometrium C. Maturation of graafian follicle D. Anabolism

Last Answer : C. Maturation of graafian follicle

Description : 8.The reason for increased amount of progesterone during the secretory phase of menstrual cycle is ---- ---- . ( a)Maturation of secondary follicle, b)Increased secretion of FSH, c)Regression of corpus luteum, d)Formation of corpus luteum from Graafian follicle )

Last Answer : d)Formation of corpus luteum from Graafian follicle

Description : Which of the following events is not associated with ovulation in human female? (a) Release of secondary oocyte (b) LH surge (c) Decrease in estradiol (d) Full development of Graafian follicle

Last Answer : (c) Decrease in estradiol

Description : Which of the following hormone levels will cause release of ovum (ovulation) from the Graffian follicle? (a) High concentration of Estrogen (b) High concentration of Progesterone (c) Low concentration of LH (d) Low concentration of FSH

Last Answer : a) High concentration of Estrogen

Description : Match column I with column II and select the correct option using the given codes. Column I Column II A. Mons pubis (i) Embryo formation B. Antrum (ii) Sperm C. Trophectoderm (iii)Female external genitalia D. Nebenkern (iv) Graafian ... (i), C-(iv), D-(ii) (d) A-(i), B-(iv), C-(iii), D-(ii

Last Answer : (b) A-(iii), B-(iv), C-(i), D-(ii)

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 : The figure shows a section of human ovary. Select the option which gives the correct identification of either A  or  B with function/characteristic (a) B- Corpus luteum - Secretes progesterone (b) A- ... Secretes estrogen (d) A- Primary oocyte - It is in the prophase I of the meiotic division

Last Answer : (a) B- Corpus luteum - Secretes progesterone

Description : Fertilisation in humans is practically feasible only if (a) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the cervix (b) the sperms are transported ... the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube.

Last Answer : (d) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube.

Description : Assisted reproductive technology, IVF involves transfer of (a) ovum into the fallopian tube (b) zygote into the fallopian tube (c) zygote into the uterus (d) embryo with 16 blastomeres into the fallopian tube.

Last Answer : b) zygote into the fallopian tube

Description : Various changes in mammalian sperm which prepare it to fertilise the ovum are called :

Last Answer : Various changes in mammalian sperm which prepare it to fertilise the ovum are called : A. Capacitation B. Regeneration C. Growth D. None of these

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 : How is the entry of only one sperm ensured into an ovum during fertilisation in humans? -Biology

Last Answer : During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes (depolarisation) in the membrane that blocks the entry of additional sperms. This ensures that only one sperm can fertilise an ovum

Description : Grey crescent is the area (a) at the point of entry of sperm into ovum (b) just opposite to the site of entry of sperm into ovum (c) at the animal pole (d) at the vegetal pole.

Last Answer : (b) just opposite to the site of entry of sperm into ovum

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 : The test-tube baby programme employs which one of the following techniques? (a) Intra Cytoplasmic Sperm Injection (ICSI) (b) Intra Uterine Insemination (IUI) (c) Gamete Intra Fallopian Transfer (GIFT) (d) Zygote Intra Fallopian Transfer (ZIFT)

Last Answer : (d) Zygote Intra Fallopian Transfer (ZIFT)

Description : 88. The Test-tube Baby Programme employs which one of the following techniques ? (1) Zygote intra fallopian transfer (ZIFT) (2) Intra cytoplasmic sperm injection (ICSI) (3) Intra uterine insemination (IUI) (4) Gamete intra fallopian transfer (GIFT)

Last Answer : ) Zygote intra fallopian transfer (ZIFT)

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 : 3. Graafian follicle transforms into corpus luteum a) In the absence of fertilisation b) to secrete estrogen c) To secrete progesterone d) for disintegration of endometrium

Last Answer : c) To secrete progesterone

Description : The cavity contained in Graafian follicle is

Last Answer : The cavity contained in Graafian follicle is A. Antrum B. Centrocoel C. Blastocoel D. Archenteron.

Description : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature Graafian follicle . Reason : Endometrium of ute

Last Answer : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature ... D. If both Assertion & Reason are False.

Description : In mammals the estrogens are secreted by the Graafian follicle from its :-

Last Answer : In mammals the estrogens are secreted by the Graafian follicle from its :- A. External theca B. Internal theca C. Zona pellucida D. Corona radiata

Description : In the diagram of section of Graafian follicle , different parts are indicated by alphabets . Choose the correct combination

Last Answer : In the diagram of section of Graafian follicle , different parts are indicated by alphabets . Choose ... cumulus oophorus , e-antrum , f-theca interna

Description : In a Graafian follicle:

Last Answer : In a Graafian follicle: A. Many oocytes B. Many sperms C. A single oocyte D. Site for egg fertilisation

Description : Lamina propria is connected with (a) acini (b) liver (c) Graafian follicle (d) intestine.

Last Answer : intestine

Description : Fertilization of the ovum by the sperm usually occurs in the: a) oviduct b) vagina c) uterus d) ovary

Last Answer : ANSWER: A -- OVIDUCT

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 : 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 : Capacitation refers to changes in the (a) ovum after fertilisation (b) sperm after fertilisation (c) sperm before fertilisation (d) ovum before fertilisation.

Last Answer : (c) sperm before fertilisation

Description : The follicle that ruptures at the time of ovulation promptly fills with blood , forming :-

Last Answer : The follicle that ruptures at the time of ovulation promptly fills with blood , forming :- A. ... Corpus luteum C. Corpus albicans D. Corpus callosum

Description : Mammalian follicle was first described by

Last Answer : Mammalian follicle was first described by A. Leewenhock B. R.D. Graaf C. Spallazani D. Von Baer

Description : 1) The membranous cover of the ovum at ovulation is a)corona radiate b)zona radiate c)zona pellucida d)chorion

Last Answer : a)corona radiate

Description : Q7. The membranous cover of the ovum at ovulation is: (a)Corona radiata (b) Zona radiata (c)Zona Pellucida (d)Chorion

Last Answer : 7.(a) corona radiata

Description : The extra embryonic membranes of the mammalian embryo are derived from (a) trophoblast (b) inner cell mass (c) formative cells (d) follicle cells

Last Answer : (a) trophoblast

Description : Which types of division take place during second maturation division ?

Last Answer : Which types of division take place during second maturation division ? A. Reduction division B. Equational division C. Amitosis D. None

Description : Chain elongation of fatty acids in mammalian liver occurs in (A) Nucleus (B) Ribosomes (C) Lysosomes (D) Microsomes

Last Answer : Answer : D

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 : At ovulation , the mammalian egg is covered by a membrane called:

Last Answer : At ovulation , the mammalian egg is covered by a membrane called: A. Chorion B. Zona pellucida C. Corona radiata D. Both 2 and 3

Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely?

Last Answer : If mammalian ovum fails to get fertilised, which one of the following is unlikely? A. ... rapidly declines D. Estrogen secretion further decreases.

Description : In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation? (a) Gamete Intracytoplasmic Fallopian Transfer (b) Artificial Insemination (c) Intracytoplasmic sperm injection (d) Intrauterine transfer

Last Answer : (b) Artificial Insemination

Description : In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation ? (1) Gamete intracytoplasmic fallopian transfer (2) Artificial Insemination (3) Intracytoplasmic sperm injection (4) Intrauterine transfer

Last Answer : (2) Artificial Insemination