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
Description : Which of the following depicts the correct pathway of transport of sperms? (a) Rete testis → Efferent ductules → Epididymis → Vas deferens (b) Rete testis → Epididymis → Efferent ductules → Vas ... → Efferent ductules → Epididymis (d) Efferent ductules → Rete testis → Vas deferens → Epididymis
Last Answer : (a) Rete testis → Efferent ductules → Epididymis → Vas deferens
Description : Set of reproductive terms are given below . Choose the set that has incorrect combination a ) sperms ,testis, sperm duct ,penis b)menstruation, egg, oviduct ,uterus c) sperm, oviduct, egg, uterus d)ovulation, egg, oviduct , uterus
Last Answer : c) sperm, oviduct, egg, uterus
Description : Select the correct sequence for transport of sperm cells in male reproductive system. (a) Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → ... → Urethral meatus (d) Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra
Last Answer : (c) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
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.
Description : Vasa efferentia are the ductules leading from (a) testicular lobules to rete testis (b) rete testis to vas deferens (c) vas deferens to epididymis (d) epididymis to urethra.
Last Answer : b) rete testis to vas deferens
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.
Description : 13. The sequence of accessory ducts from the testis to the body cavity in Man is--------- (a) Rete testis,vasaefferentia, epididymis and vas deferens (b) Vasa efferentia, rete testis, ... , vas deferens, epididymis and rete testis (d) Epididymis, vasa efferentia , rete testis and vas deferens
Last Answer : (a) Rete testis,vasaefferentia, epididymis and vas deferens
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.
Description : 102.Perisperm differs from endosperm in (a) being a diploid tissue (b) its formation by fusion of secondary nucleus with several sperms (c) being a haploid tissue (d) having no reserve food.
Last Answer : (a) being a diploid tissue
Description : 2. Perisperm and endosperm differ in a. Being a diploid tissue b. Being a haploid tissue c. Having no reserve food d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Last Answer : d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Description : Perisperm differs from endosperm in :a)Being a diploid tissueb)Its formation by fusion of secondary nucleus with several sperms c)Being a haploid tissued)Having no reserve food
Last Answer : 3Being a diploid tissue
Description : Which one of the following represents the correct sequence of stages in the life cycle of flukes? a. Cercaria to redia to miracidium to sporocyst b. Miracidium to sporocyst to redia to cercaria c. Metacercaria to redia to cercaria to sporocyst d. Redia to miracidium to metacercaria to cercaria
Last Answer : b. Miracidium to sporocyst to redia to cercaria
Description : The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal. The correct sequence of ... 4 (B) 2, 3, 4, 1 (C) 2, 4, 3, 1 (D) 3, 1, 2 , 4
Last Answer : Answer: Option C
Description : Which one of the following part of human body withstands minimum radiation? A. Thyroid B. Kidneys C. Eyes D. Ovaries/testis
Last Answer : ANS: D
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 : In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells. (a) there is breakdown of these regulatory mechanism leading to formation of benign and malignant ... is mutated and produced in less amount (d) DNA is mutated and produced in less amount
Last Answer : Ans:(a)
Description : Pick out the correct statement. (A) If an insoluble gas is passed through a volatile liquid placed in a perfectly insulated container, the temperature of the liquid will increase (B) A ... compound is defined as the heat of reaction leading to the formation of the compound from its reactants
Last Answer : (D) The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its reactants
Description : In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division
Last Answer : (b) One meiotic and one mitotic divisions
Description : Below reaction sequence illustrates the various stages of reduction of nitric acid where a, b, c,d are the number of electrons involved in the reducti
Last Answer : Below reaction sequence illustrates the various stages of reduction of nitric acid where a, b, c,d are the number of ... value of `(2a + b + 3c -d)`
Description : Stages in proper sequence of prophase I are
Last Answer : Stages in proper sequence of prophase I are A. Leptotene, pachytene, zygotene, diplotene, ... diakinesis D. Leptotene, zygotene, diakinesis, diplotene
Description : Robot that perform the successive stages of a task according to predetermined, unchanging method is called as A : Fixed Sequence Robot B : Variable sequence robot C : Playback Robot D : Numerical Control robot
Last Answer : A : Fixed Sequence Robot
Description : Which is the right sequence of stages of Internationalization? a. Domestic, Transnational, Global, International, Multinational b. Domestic, International, Multinational, Global, Transnational ... , International, Transnational, Global d. Domestic, International, Transnational, Multinational, Global
Last Answer : Domestic, International, Multinational, Global, Transnational
Description : Which is the right sequence of the histological stages of tooth development? M07 A. Initiation, proliferation, histodifferentiation, morphodifferentiation, mineralization ... , mineralization D. Initiation, proliferation, morphodifferentiation, histodifferentiation, mineralization
Last Answer : A. Initiation, proliferation, histodifferentiation, morphodifferentiation, mineralization
Description : Which is the right sequence of a stages of Internationalization A. Domestic, Transnational, Global, International, Multinational B. Domestic, International, Multinational, Global, ... , International, Transnational, Global D. Domestic, Internatinal, Transnational, Multinational, Global
Last Answer : B. Domestic, International, Multinational, Global, Transnational
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.
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
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.
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
Description : 7.How many sperms are produced from 50 secondary spermatocytes in human beings? (a)100, b)200, c)100, d)25 )
Last Answer : (a)100,
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
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 : 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.
Description : Select the correct route for the passage of sperms in male frogs. (a) Testes → Vasa efferentia → Kidney → Seminal vesicle → Urinogenital duct → Cloaca (b) Testes → Vasa efferentia → Bidder's canal ... → Cloaca (d) Testes → Bidder's canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca
Last Answer : (c) Testes → Vasa efferentia → Kidney → Bidder’s canal → Urinogenital duct → Cloaca
Description : If your child had a ”gay gene”, or a sequence of genes leading to gayness, would you leave it unaltered if there was a way to eliminate, or modify it?
Last Answer : I am not perfect and neither are my kids and I would not change a thing.
Description : What are the stages to team formation?
Last Answer : Feel Free to Answer
Description : Critical stages of irrigation in cowpea_____ a Flowering & pod formation b Flowering c Seedling d None of these
Last Answer : a Flowering & pod formation
Description : Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these
Last Answer : (B) Accelerate fruit formation in later stages of growth
Description : The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser. (A) Nitrogenous (B) Phosphatic (C) Potassic (D) None of these
Last Answer : (A) Nitrogenous
Description : which is the correct sequence of events in the origin of life: I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic
Last Answer : which is the correct sequence of events in the origin of life: I. Formation of protobionts II. Synthesis of organic ... II, III, IV D. I, III, II, IV
Description : Which one of the following is the correct sequence of the age of formation-from the youngest to the oldest-of the given mountain ranges? (a) Himalayas, Vindhyas, Western Ghats, Deccan Traps ( ... ) Himalayas, Western Ghats, Vindhayas, Deccan Traps (d) Vindhyas, Himalayas, Deccan Traps, Western Ghats
Last Answer : Ans: (a)
Description : Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems (a) I, II, III, IV (b) I, III, II, IV (c) II, III, I, IV (d) II, III, IV, I
Last Answer : c) II, III, I, IV
Description : What is the correct sequence of sperm formation? (a) Spermatogonia, spermatozoa, spermatocytes, spermatids (b) Spermatogonia, spermatocytes, spermatids, spermatozoa (c) Spermatids, spermatocytes, spermatogonia, spermatozoa (d) Spermatogonia, spermatocytes, spermatozoa, spermatids
Last Answer : (b) Spermatogonia, spermatocytes, spermatids, spermatozoa
Description : Which one of the following is the correct sequence for the events of phagocytosis? a. Cell attachment, acidification, phagosome formation, lysosome degradation b. Cell ... attachment, acidification. lysosome degradationd. Cell attachment phagosome formation, lysosome degradation. acidification
Last Answer : Cell attachment, phagosome formation, acidification, lysosome degradation
Description : What is the correct sequence of events A. Differentiation of odontoblast, elongation of enamel epithelium, dentine formation then enamel formation. B. Differentiation of odontoblast, ... Elongation of enamel epithelium, differentiation of odontoblast, dentine formation then enamel formation.
Last Answer : C. Elongation of enamel epithelium, differentiation of odontoblast, dentine formation then enamel formation.