Description : Development of an egg without fertilization is called (1) Gametogenesis (2) Parthenogenesis (3) Oogenesis (4) Metamorphosis
Last Answer : Parthenogenesis
Description : Production of seeds without fertilization is termed as: a. Parthenocarpy b. Parthenogenesis c. Gametogenesis d. All of above
Description : Development of an organism from female gamete/ egg without involving fertilization is (a) adventitive embryony (b) polyembryony (c) parthenocarpy (d) parthenogenesis.
Last Answer : (d) parthenogenesis.
Description : Removal of outer exoskeleton is the process called a) Metamorphosis b) Ecdysis c) Paedogenesis d) Gametogenesis
Last Answer : a) Metamorphosis
Description : Which of the following refers to the development of viable individuals from unfertilized eggs? a) self-fertilization b) hermaphroditic reproduction (pronounced her - MAF - ro - dit - ik) c) parthenogenesis
Last Answer : ANSWER: C -- PARTHENOGENESIS
Description : Parthenogenesis is (a) development of embryo without fertilisation (b) development of fruit without fertilisation (c) development of fruit without hormones (d) development of embryo from egg without fertilisation.
Last Answer : (d) development of embryo from egg without fertilisation.
Description : .Prothallus (gametophyte) gives rise to fern plant (sporophyte) without fertilization. It is (a) apospory (b) apogamy (c) parthenocarpy (d) parthenogenesis.
Last Answer : (b) apogamy
Description : Development of embryo from unfertilized egg is known as A) Parthenogenesis B) Parthenocarpy C) Apomixsis D) None of the above
Last Answer : A) Parthenogenesis
Description : Development of animal embryo from egg without fertilization is called :
Last Answer : Development of animal embryo from egg without fertilization is called : A. Parthenogenesis B. Parthenocarpy C. Apospory D. Apomixis
Description : The development of an egg without fertilization by a sperm is referred to as:
Last Answer : ANSWER: PARTHENOGENESIS
Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis
Last Answer : Ans. ((b))
Description : When the embryo develops from haploid egg cell without fertilization, the phenomenon is called as
Last Answer : When the embryo develops from haploid egg cell without fertilization, the phenomenon is called as – Haploid parthenogenesis
Description : Draw a diagrammatic sectional view of human ovary showing different stages of oogenesis along with corpus luteum. (ii) Where is morula formed in human? Explain the process of its development from zygote. -Biology
Last Answer : (i) Sectional view of human ovary. (ii) Morula is formed in the (a)Isthmus of the oviduct (Fallopiantube). (b)The zygote undergoes mitotic divisions in quick succession called cleavage, forming 2, 4 ... 8-16 blastomeres is called a morula and the inner cell mass gets ready to form the embryo proper.
Description : The fruits without seed, like banana, are called-------? A. Seedless fruits B. Parthenogenesis fruits C. Parthenocarpic fruits (Answer) D. placental fruits E. Organic fruits
Last Answer : C. Parthenocarpic fruits (Answer)
Description : Formation of gametophyte directly from sporophyte without meiosis is (a) apospory (b) apogamy (c) parthenogenesis (d) amphimixis.
Last Answer : (a) apospory
Description : In some plants, the female gamete develops into embryo without fertilisation. This phenomenon is known as (a) parthenogenesis (b) autogamy (c) parthenocarpy (d) syngamy.
Last Answer : (a) parthenogenesis
Description : Nothing lives forever, but life continues’. What does it mean? (a) Older die but new are produced due to reproduction. (b) Nothing can produce without death. (c) Death has nothing to do with the continuation of life. (d) Parthenogenesis is must for sexual reproduction.
Last Answer : (a) Older die but new are produced due to reproduction.
Description : On fertilization of egg nucleus with sperm nucleus
Last Answer : On fertilization of egg nucleus with sperm nucleus A. Second maturation is completed B. Embryo is ... body is formed D. First maturation is completed.
Description : At the time of fertilization sperm head enters in the egg from :-
Last Answer : At the time of fertilization sperm head enters in the egg from :- A. Any where B. Animal pole C. Vegetal pole D. Lateral side of egg
Description : Where does Fertilization of a human egg by sperm takes place?
Last Answer : In the Fallopian tubes,
Description : Bryophytes are dependent on water, because (a) water is essential for their vegetative propagation (b) the sperms can easily reach upto egg in the archegonium (c) archegonium has to remain filled with water for fertilization (d) water is essential for fertilization for their homosporous nature.
Last Answer : (b) the sperms can easily reach upto egg in the archegonium
Description : Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion
Last Answer : (4) Syngamy and triple fusion
Description : The process of series of changes from larva to adult after embryonic development is called (a) regeneration (b) growth (c) metamorphosis (d) ageing.
Last Answer : (c) human males only
Description : Assertion : - Cockorach undergoes many moulting in their development stage. Reason : - Cockroach exhibits gradual metamorphosis.
Last Answer : Assertion : - Cockorach undergoes many moulting in their development stage. Reason : - Cockroach exhibits gradual metamorphosis. A. A B. B C. C D. D
Description : What is development of fruit without fertilization called? -Do You Know?
Last Answer : answer:
Description : What is development of fruit without fertilization called?
Last Answer : Parthenocarpy
Description : The development of fruit without fertilization or seed is called as: a. Pollination b. polyembryony c. pseudogamy d. Parthenocarpy
Description : The soils that that lies on the site of their formation, without transporting, just above their parent rock are called? a. Parasitic soil b. Docile Soil c. Sedentary soil d. Metamorphosis soil
Last Answer : c. Sedentary soil
Description : Development of fruit without fertilization
Last Answer : Ans. Parthenocarpy
Description : 9) The process of development of ovary into fruit without fertilization is c) parthenogenesis d) parthenocarpy c) apomixis d) Apospory
Last Answer : 9.b parthenocarpy
Description : (i) When does oogenesis begin? (ii) Differentiate between the location and function of Sertoli cells and Leydig cells. -Biology
Last Answer : Oogenesis begins during the embryonic development stage when a million gamete mother cells (oogonia) are formed within each foetal ovary. (ii) (a) Sertoli cells are located on ... seminiferous tubule called interstitial spaces. These cells synthesise and secrete testicular hormone called androgens.
Description : What is the process of Spermatogenesis & Oogenesis -Biology
Description : Oogenesis takes place in
Last Answer : Oogenesis takes place in A. Squamous epthelium of ovary. B. Interstitial cells of ovary C. Follicles of ovary D. Germinal epithelium of ovary.
Description : What is the total number of polar bodies formed during oogenesis in the ovary?
Last Answer : What is the total number of polar bodies formed during oogenesis in the ovary? A. 4 B. 3 C. 1 D. 2
Description : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of polarbodies is to bring haploidy of ovum .
Last Answer : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of ... . If both Assertion & Reason are False.
Description : The process of spermatogenesis and oogenesis in most vertebrates are under the influence of which hormone ?
Last Answer : The process of spermatogenesis and oogenesis in most vertebrates are under the influence of which hormone ? A. Oxytocin B. FSH C. ACTH D. ICSH
Description : First meiotic division during Oogenesis occurs in:
Last Answer : First meiotic division during Oogenesis occurs in: A. First polar body B. Second polar body C. Primary oocytes D. Secondary polar body
Description : How many polar bodies are produced during the entire process of oogenesis in unmarried human female ?
Last Answer : How many polar bodies are produced during the entire process of oogenesis in unmarried human female ? A. Three B. Two C. One D. Four
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
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
Description : DESCRIBE THE PROCESS OF OOGENESIS IN HUMAN FEMALE AND DIFFERENTIATE IT WITH SPERMATOGENESIS ON THE BASIS OF TIME OF INITIATION AND THE PRODUCTS FORMED.
Last Answer : ANS. OOGENESIS : DIAGRAMMATIC REPRESENTATION AS GIVEN IN NCERT. DIFFERENCES BETWEEN : OOGENESIS SPERMATOGENESIS (i) STARTS DURING FOETAL LIFE (i) STARTS DURING PUBERTY (ii)PRODUCTS: OVUM (ii) SPERMS
Description : WHEN DO THE OOGENESIS AND THE SPERMATOGENESIS INITIATE IN HUMAN FEMALES AND MALES RESPECTIVELY ?
Last Answer : ANS. OOGENESIS AT THE FOETAL LIFEAND SPERMATOGENISIS STARTS AT PUBERTY.
Description : What is gametogenesis ?
Last Answer : The process by which sperm and eggs are produced in an animal is called gametogenesis.
Last Answer : Fertilizer Without Occasionally Any Any Plants Game cells Special By Eggs The fetus Structure By New Of plants Born Gives. Of plants The gamete Or Ovary Fertilizer Without New Of plants Born To give Apunjani Or Parthenogenesis Says. Such as : mucor , spirogyra , banana Etc.
Description : What are the diploid stages in gametogenesis?
Last Answer : What are the diploid stages in gametogenesis? A. 50 secondary spermatocytes and 50 secondary ... 25 primary spermatocytes and 100 primary oocytes.
Description : In the following which vitamin essential for gametogenesis ?
Last Answer : In the following which vitamin essential for gametogenesis ? A. Vit. A and E B. Vit. C and D C. Vit. E and K D. Vit. E and B complex
Description : During which stage of gametogenesis meiosis occurs ?
Last Answer : During which stage of gametogenesis meiosis occurs ? A. Growth phase B. Multiplication phase C. Maturation phase D. None of the above
Description : In gametogenesis , reduction division take place during :-
Last Answer : In gametogenesis , reduction division take place during :- A. Multiplication phase B. Growth phase C. first maturation division D. Second maturation
Description : The following cell division occurs during gametogenesis a. Mitosis b. Meiosis c. Both d. None of them
Last Answer : Both