Sperms and ova are

Sperms and ova are
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Sperms and ova are A. Ectodermal in origin B. Mesodermal in origin C. Endodermal in origin D. All of the above
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If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms p

Description : If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms p

Last Answer : If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be ... `1:2` C. `1:4` D. `2:1`

An abnormal human baby with ‘XXX’ sex chromosomes was born due to (a) fusion of two ova and one sperm (b) fusion of two sperms and one ovum (c) formation of abnormal sperms in the father (d) formation of abnormal ova in the mother.

Description : An abnormal human baby with ‘XXX’ sex chromosomes was born due to (a) fusion of two ova and one sperm (b) fusion of two sperms and one ovum (c) formation of abnormal sperms in the father (d) formation of abnormal ova in the mother.

Last Answer : (d) formation of abnormal ova in the mother.

Artificial Insemination means (a) artificial introduction of sperms of a healthy donor into the vagina (b) introduction of sperms of a healthy donor directly into the ovary(c) transfer of sperms of a healthy donor to a test tube containing ova (d) transfer of sperms of husband to a test tube containing ova. (NEET 2013) 40. The stage transferred

Description : Artificial Insemination means (a) artificial introduction of sperms of a healthy donor into the vagina (b) introduction of sperms of a healthy donor directly into the ovary (c) transfer of sperms of a ... of sperms of husband to a test tube containing ova. (NEET 2013) 40. The stage transferred

Last Answer : (a) artificial introduction of sperms of a healthy donor into the vagina

The space in the male abdomen that would house the uterus, ova, etc. in females, what is it used for in men?

Description : The space in the male abdomen that would house the uterus, ova, etc. in females, what is it used for in men?

Last Answer : Storing beer.

In mammals ………….ova are found

Description : In mammals ………….ova are found

Last Answer : In mammals ………….ova are found A. Mesolecithal B. Megalecithal C. Alecithal or microblecithal D. none

In human females, ova are produc ed in

Description : In human females, ova are produc ed in

Last Answer : In human females, ova are produc ed in A. Ovarian follicles B. Oviduct C. Uterus D. Vagina

The process of formation of ova is called

Description : The process of formation of ova is called

Last Answer : The process of formation of ova is called A. Ovulation B. Oogenesis C. Oviparity D. Oviposition.

How many sperm and ova will be formed from 50 secondary oocytes and 50 secondary spermatocytes in human :-

Description : How many sperm and ova will be formed from 50 secondary oocytes and 50 secondary spermatocytes in human :-

Last Answer : How many sperm and ova will be formed from 50 secondary oocytes and 50 secondary spermatocytes in human :- ... ova & 200 sperm D. 100 ova & 400 sperm

Fertilization of sperm and ova takes place in:

Description : Fertilization of sperm and ova takes place in:

Last Answer : Fertilization of sperm and ova takes place in: A. Cervix B. Ampulla C. Isthmus D. Vagina

The minute cells which separate from the developing ova during their maturation are called

Description : The minute cells which separate from the developing ova during their maturation are called

Last Answer : The minute cells which separate from the developing ova during their maturation are called A. ... Oogonia C. Polar bodies D. Primary spermatogonia

10 oogonia yield 10 primary oocytes , then how many ova are produced on completion of oogenesis

Description : 10 oogonia yield 10 primary oocytes , then how many ova are produced on completion of oogenesis

Last Answer : 10 oogonia yield 10 primary oocytes , then how many ova are produced on completion of oogenesis A. 5 B. 10 C. 20 D. 40

Stool ova and parasites exam?

Description : Stool ova and parasites exam?

Last Answer : DefinitionStool ova and parasites exam is a laboratory test to determine if a stool sample contains parasites or eggs (ova) that are associated with intestinal infections.Alternative NamesParasites and stool ... properly, you can keep the stool separate from urine, thus ensuring a better sample.R

For the implantation of fertilize ova uterus secret which harmone?

Description : For the implantation of fertilize ova uterus secret which harmone?

Last Answer : Estrogen

Which of the following depicts the correct pathway of transport of sperms

Description : Which of the following depicts the correct pathway of transport of sperms

Last Answer : Which of the following depicts the correct pathway of transport of sperms A. Efferent ductules `to ... deferens `to` Efferent ductules `to` Epidiymis

Release of sperms from seminiferous tubules is called

Description : Release of sperms from seminiferous tubules is called

Last Answer : Release of sperms from seminiferous tubules is called A. Spermiogenesis B. Spermiation C. Spermatogenesis D. Fertilization.

How many sperms are present in an average 3 ml ejaculation

Description : How many sperms are present in an average 3 ml ejaculation

Last Answer : How many sperms are present in an average 3 ml ejaculation A. 200 million B. 300 million C. 500 million D. 800million.

Sperms develop in

Description : Sperms develop in

Last Answer : Sperms develop in A. Vas deferens B. Seminiferous tubules C. Prostate gland D. Interstital cells.

What happens during fertilization when many sperms reach close to ovum

Description : What happens during fertilization when many sperms reach close to ovum

Last Answer : What happens during fertilization when many sperms reach close to ovum A. Cells of corona radiata trap ... the one nearest to ovum lose their tails.

Sperms are produced in:

Description : Sperms are produced in:

Last Answer : Sperms are produced in: A. vas deferens B. Interstitial cells C. Prostate gland D. Seminiferous tubules.

Which provides nutrition to maturing sperms?

Description : Which provides nutrition to maturing sperms?

Last Answer : Which provides nutrition to maturing sperms? A. Leydig cells B. Scrotum C. Epididymis D. Sertoli cells.

Process of maturation and evelopment of sperms is

Description : Process of maturation and evelopment of sperms is

Last Answer : Process of maturation and evelopment of sperms is A. Spermatogenesis B. Spermiogenesis C. Oogenesis D. Spermiation.

How many sperms are formed from a secondary spermatocyte?

Description : How many sperms are formed from a secondary spermatocyte?

Last Answer : How many sperms are formed from a secondary spermatocyte? A. 4 B. 8 C. 2 D. 1

How many sperms are produced from one primary spermatocyte?

Description : How many sperms are produced from one primary spermatocyte?

Last Answer : How many sperms are produced from one primary spermatocyte? A. 8 B. 6 C. 2 D. 4

Sperms produce an enzymatic substance or lysin for dissolving egg coverings. It is called

Description : Sperms produce an enzymatic substance or lysin for dissolving egg coverings. It is called

Last Answer : Sperms produce an enzymatic substance or lysin for dissolving egg coverings. It is called A. ... B. hyaluronidase C. Androgamone D. Diastase.

In spermatogenesis, a primary spermatocyta produce four similar sperms while in oognesis a primary oocyte forms

Description : In spermatogenesis, a primary spermatocyta produce four similar sperms while in oognesis a primary oocyte forms

Last Answer : In spermatogenesis, a primary spermatocyta produce four similar sperms while in oognesis a primary oocyte ... One large ovum and 2-3 polar bodies.

$ Clitoris of woman is equivalent to the penis of men. ! The process of formation of sperms is called spermatogensis.

Description : $ Clitoris of woman is equivalent to the penis of men. ! The process of formation of sperms is called spermatogensis.

Last Answer : $ Clitoris of woman is equivalent to the penis of men. ! The process of formation of sperms is called ... is wrong D. If both As and R are wrong.

$ Sperm in Bryophytes are flagellated. ! Sperms in bryophytes move to the mature and dehisced archegonia, under the effect of chemicals.

Description : $ Sperm in Bryophytes are flagellated. ! Sperms in bryophytes move to the mature and dehisced archegonia, under the effect of chemicals.

Last Answer : $ Sperm in Bryophytes are flagellated. ! Sperms in bryophytes move to the mature and dehisced archegonia, under ... D. If both As and R are wrong.

The functional maturation of sperms takes place in :-

Description : The functional maturation of sperms takes place in :-

Last Answer : The functional maturation of sperms takes place in :- A. Oviduct B. Epididymis C. Vagina D. All of these

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is

Description : The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is

Last Answer : The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature ... . Spermatogonia - Spermatocyte - Spermatid - Sperms

How many sperms are formed by one primary spermatocyte ?

Description : How many sperms are formed by one primary spermatocyte ?

Last Answer : How many sperms are formed by one primary spermatocyte ? A. 4 B. 3 C. 2 D. 1

Assertion: Copper-T is an effectie contraceptive device in human females. Reason: Copper-T prevents passage of sperms from vagina upwards into fallopi

Description : Assertion: Copper-T is an effectie contraceptive device in human females. Reason: Copper-T prevents passage of sperms from vagina upwards into fallopi

Last Answer : Assertion: Copper-T is an effectie contraceptive device in human females. Reason: Copper-T prevents ... If both the assertion and resson are false.

S1 nuclease hydrolyses (A) DNA of somatic cells (B) DNA of sperms (C) Any double stranded DNA (D) Any single stranded DNA

Description : S1 nuclease hydrolyses (A) DNA of somatic cells (B) DNA of sperms (C) Any double stranded DNA (D) Any single stranded DNA

Last Answer : Answer : D

Identical twins are born when (a) Two sperms fertilise one ovum (b) Two sperms fertilise two ovums simultaneously (c) Open sperm fertilizes the ovum and zygote divides into two separate cells developing independently (d) One sperm fertilises two ovums

Description : Identical twins are born when (a) Two sperms fertilise one ovum (b) Two sperms fertilise two ovums simultaneously (c) Open sperm fertilizes the ovum and zygote divides into two separate cells developing independently (d) One sperm fertilises two ovums

Last Answer : Ans:(c)

By which the sex of a child is determined before birth? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Description : By which the sex of a child is determined before birth? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Last Answer : (2) Foetus of mother Explanation: The gender of the baby can be ascertained accurately after more or less than seven weeks of pregnancy. During this period of pregnancy, the fetal DNA is ... in the mother's blood. Thus, identifying the fetus gender through prenatal gender testing is easier.

A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? (a) 1/8 (b) 1/32 (c) 1/16 (d) 1/4

Description : A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? (a) 1/8 (b) 1/32 (c) 1/16 (d) 1/4

Last Answer : (a) 1/8

Mr. Kapoor has Bb autosomal gene pair and d allele sex-linked. What shall be proportion of Bd in sperms? (a) Zero (b) 1/2 (c) 1/4 (d) 1/8

Description : Mr. Kapoor has Bb autosomal gene pair and d allele sex-linked. What shall be proportion of Bd in sperms? (a) Zero (b) 1/2 (c) 1/4 (d) 1/8

Last Answer : (c) 1/4

. Select the incorrect statement. (a) Human males have one of their sex-chromosome much shorter than other. (b) Male fruit fly is heterogametic. (c) In male grasshoppers, 50% of sperms have no sex-chromosome. (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.

Description : . Select the incorrect statement. (a) Human males have one of their sex-chromosome much shorter than other. (b) Male fruit fly is heterogametic. (c) In male grasshoppers, 50% of sperms have no sex-chromosome. (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.

Last Answer : (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.

A human male produces sperms with the genotypes AB, Ab, aB and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person? (a) AaBB (b) AABb (c) AABB (d) AaBb

Description : A human male produces sperms with the genotypes AB, Ab, aB and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person? (a) AaBB (b) AABb (c) AABB (d) AaBb

Last Answer : (d) AaBb

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 canal is too narrow to allow passage for the sperms (d) who cannot provide suitable environment for fertilisation.

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

What is the work of progesterone which is present in oral contraceptive pills? (a) To inhibit ovulation (b) To check oogenesis (c) To check entry of sperms into cervix and to make them inactive (d) To check sexual behaviour

Description : What is the work of progesterone which is present in oral contraceptive pills? (a) To inhibit ovulation (b) To check oogenesis (c) To check entry of sperms into cervix and to make them inactive (d) To check sexual behaviour

Last Answer : (a) To inhibit ovulation

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 (ii) Prevents implantation C. Vasectomy (iii) Prevents ovulation D. Copper T (iv) Semen contains no sperms (a) A – (iii), B – (iv), C – (i), D – (ii) (b) A – (ii), B – (iii), C – (i), D – (iv) (c) A – (iii), B – (i), C – (iv), D – (ii) (d) A – (iv), B – (i), C – (ii), D – (iii)

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 – (

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.

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

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) Vasectomy Prevents spermatogenesis (c) Barrier methods Prevent fertilisation (d) Intra uterine devices Increase phagocytosis of sperms, suppress sperm motility and fertilising capacity of sperms

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

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.

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.

Which of the following is a correct statement? (a) IUDs once inserted need not be replaced. (b) IUDs are generally inserted by the user herself. (c) IUDs increase phagocytosis of sperms in the uterus. (d) IUDs suppress gametogenesis.

Description : Which of the following is a correct statement? (a) IUDs once inserted need not be replaced. (b) IUDs are generally inserted by the user herself. (c) IUDs increase phagocytosis of sperms in the uterus. (d) IUDs suppress gametogenesis.

Last Answer : (c) IUDs increase phagocytosis of sperms in the uterus.

What happens during fertilisation in humans after many sperms reach close to the ovum? (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida. (b) All sperms except the one nearest to the ovum lose their tails. (c) Cells of corona radiata trap all the sperms except one. (d) Only two sperms nearest the ovum penetrate zona pellucida.

Description : What happens during fertilisation in humans after many sperms reach close to the ovum? (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida. (b) All sperms except ... all the sperms except one. (d) Only two sperms nearest the ovum penetrate zona pellucida.

Last Answer : (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida.

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 into cervix within 48 hrs of release of ovum in uterus (c) the sperms are transported into vagina just after the release of ovum in fallopian tube (d) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube.

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.

How many sperms are formed from a secondary spermatocyte? (a) 4 (b) 8 (c) 2 (d) 1

Description : How many sperms are formed from a secondary spermatocyte? (a) 4 (b) 8 (c) 2 (d) 1

Last Answer : (c) 2

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is (a) spermatogonia - spermatocyte - spermatid - sperms (b) spermatid - spermatocyte - spermatogonia - sperms (c) spermatogonia - spermatid - spermatocyte - sperms (d) spermatocyte - spermatogonia - spermatid - sperms

Description : The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is (a) spermatogonia - spermatocyte - spermatid - sperms (b) spermatid - spermatocyte ... - spermatid - spermatocyte - sperms (d) spermatocyte - spermatogonia - spermatid - sperms

Last Answer : a) spermatogonia - spermatocyte - spermatid - sperms

Which one of the following statements is false in respect of viability of mammalian sperm? (a) Sperm is viable for only up to 24 hours. (b) Survival of sperm depends on the pH of the medium and is more active in alkaline medium. (c) Viability of sperm is determined by its motility. (d) Sperms must be concentrated in a thick suspension.

Description : Which one of the following statements is false in respect of viability of mammalian sperm? (a) Sperm is viable for only up to 24 hours. (b) Survival of sperm depends on the pH of the ... ) Viability of sperm is determined by its motility. (d) Sperms must be concentrated in a thick suspension.

Last Answer : (a) Sperm is viable for only up to 24 hours.