The example of hermaphrodite animal in which cross
fertilisation occurs is?

1 Answer

Answer :

Earthworm

Related questions

Description : The example of hermaphrodite animal in which cross fertilisation occurs is (1) Hydra (2) Ascaris (3) Earthworm (4) Silkworm

Last Answer : Hydra

Description : The example of hermaphrodite animal in which cross fertilization occurs is - (1) Hydra (2) Ascaris (3) Earthworm (4) Silkworm

Last Answer : (1) Hydra Explanation: Cross fertilization occurs in Hydra. The spermatozoa released from the testis of one Hydra swim about in water with their tails and finally come into contact with the ovum ... penetrates the ovum and fertilizes it. This results in the formation of a zygote which is diploid.

Description : Differentiate between ‘self-pollination’ and ‘cross-pollination’. Describe double fertilisation in plants. -Science

Last Answer : answer:

Description : How does fertilisation take place? Fertilisation occurs once in a month. Comment. -Biology

Last Answer : Fusion of male gamete sperm and female gamete egg in fallopian tube (oviduct) is called as fertilization. ... Ovulation is release of ovum from ovary into oviduct and takes place only once in a month i.e. 14th day of menstrual cycle. Hence, fertilization can occur only once in a month.

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 : Aquatic animals in which fertilisation occurs in water are said to be a) viviparous without external fertilisation b) oviparous with external fertilisation c) viviparous with internal fertilisation d) oviparous with internal fertilisation

Last Answer : b) oviparous with external fertilisation

Description : Do you consider the term hermaphrodite, for an intersexual person, to be offensive?

Last Answer : It’s a medical term, do people who are find it offensive? I don’t.

Description : How can I find a real hermaphrodite for interviewing purposes? I am very curious to know if this is a myth/real, and what it's like with looking for someone as a lifelong partner.

Last Answer : it’s real, I don’t know where to get in contact with these people, but, try searching google, they may have support groups or other such things in which you’d be able to find some.

Description : Can a hermaphrodite impregnate self?

Last Answer : Fertility is theoretically possible in true hermaphrodites,there is no documented case where both gonadal tissues function,contrary to the misconception that hermaphrodites can impregnatethemselves.

Description : Can a hermaphrodite impregnate self?

Last Answer : Fertility is theoretically possible in true hermaphrodites,there is no documented case where both gonadal tissues function,contrary to the misconception that hermaphrodites can impregnatethemselves.

Description : When male and female flowers of a hermaphrodite flower matures at different time

Last Answer : Ans. Dichogamy

Description : Is it possible for a hermaphrodite species to present crossfecundation?

Last Answer : There are hermaphrodite species of animals and plants that present crossfecundation mainly due to the maturation of female and male structures at different periods. Cross fecundation ... gametes from different individuals. These individuals approach their copulating structures and exchange gametes.

Description : Which one of the followings is correct statement D A. Almost all trematodes are hermaphrodite B. All are hermaphrodite except Schistosomatidae C. Members of Genus Fasciola are hermaphrodite D. All of above

Last Answer : All of above

Description : A flower which has all the usual parts sepals, petals, stamens and carpel is called a. hermaphrodite b. Complete c. Pistilate d. Incomplete

Last Answer : hermaphrodite

Description : When one plant has both male and female flowers separately, is called— (A) Monophrodits (B) Monoecious (C) Hermaphrodite (D) Apomixis

Last Answer : (B) Monoecious

Description : Which type of flowers can not produce seeds and / or fruit? Pistillate Perfect Hermaphrodite Staminat

Last Answer : Staminat

Description : Gynodioecious varieties of papaya produce – a) Only male plants b) Female and hermaphrodite c) Male and hermaphrodite plants d) Only female plants

Last Answer : d) Only female plants

Description : What is meant by external fertilisation? Give example.

Last Answer : Fertilisation taking place outside the body of the organism is called external fertilisation. Ex: Fishes, frog etc.

Description : 1. The oldest monarchy in the world is that of which country? 2. Starch iodide paper is used to test for the presence of which agent? 3. In the case of a test-tube baby' where does ... 19. Which is the smallest Union Territory? 20. In which year was India was invaded by Timur Lame?

Last Answer : Answer : 1. Japan 2. Oxidising agent 3. Outside the mother's body 4. In the Indian Ocean 5. The Satavahanas 6. 324 7. Khurja 8. 38th Parallel 9. North-West Atlantic 10. Hala 11. ... urbanisation15. Amir Khusrau 16. Prithvi Raj Kapoor 17. According to value 18. Exothermic 19. Lakshadweep 20. 1398

Description : How is the process of pollination different from fertilisation ? -Biology

Last Answer : The process of pollination is simply the transfer of pollen from one flower to other onto the stigma. The process of fertilization is what happens after the pollen is transferred into the ... takes place only in flowering plants whereas, fertilization happens in almost all animals and plants.

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 : Explain the events that occur during fertilisation of an ovum in humans. How is it that only one sperm enters the OVUm? -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 ... that blocks the entry of additional sperms. This ensures that only one sperm can fertilise an ovum

Description : Where does fertilisation occur in humans? Explain the events that occur during this process. -Biology

Last Answer : 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: (i) The sperm reaches the junction of ampulla ... and second polar body. (iv)Nucleus of sperm and of ovum fuses to form a diploid zygote.

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 : Explain external fertilisation in organisms. -Biology

Last Answer : answer:

Description : Explain the disadvantages of external fertilisation in organisms. -Biology

Last Answer : answer:

Description : Explain the post-fertilisation changes in a flower. -Biology

Last Answer : answer:

Description : Which type of the fruit formed without fertilisation? -Do You Know?

Last Answer : answer:

Description : In the case of a ‘test-tube baby’ where does fertilisation take place? -Do You Know?

Last Answer : answer:

Description : Carbon dioxides fertilisation effect is

Last Answer : Carbon dioxides fertilisation effect is A. Warming effect of `CO_(2)` B. Photosynthetic ... latitudes D. Poleward shifting of temprature zone .

Description : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage.

Last Answer : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage ... increases nor decreases but forms blasmtomeres.

Description : The fertilisation in mammals including human beings takes place in

Last Answer : The fertilisation in mammals including human beings takes place in A. Vestibule B. Vagina C. Fallopian tubes D. Uterus

Description : Development of fruite without fertilisation is

Last Answer : Development of fruite without fertilisation is A. Parthenogensis B. Parthenocarpy C. Apospory D. Apogamy

Description : Assertion : From day 10 to 17 of the mentrual cycle is called fertile period. Reason : As chances of fertilisation are very high during this period.

Last Answer : Assertion : From day 10 to 17 of the mentrual cycle is called fertile period. Reason : As chances of ... . D. If both Assertion & Reason are False.

Description : From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm are transported simultaneously to t

Last Answer : From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm ... b and c C. c and d D. b and d

Description : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?

Last Answer : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii ... All are methods of conservation of extinct organisms.

Description : The term Test Tube Baby' implies (a) Fertilisation of ovum takes place I the test tube but it develops in uterus (b) Fertilisation of ovum takes place in the test tube and develops in ... uterus but develops in the test tube (d) Fertilisation takes place in uterus and embryo develops in uterus

Last Answer : Ans:(a)

Description : A test tube baby means : (1) a baby grown in a test tube. (2) embryo fertilised in uterus and developed in test tube. (3) embryo fertilised and developed in uterus. (4) fertilisation in vitro and then transplantation in the uterus.

Last Answer : (4) fertilisation in vitro and then transplantation in the uterus. Explanation: In vitro fertilisation is a process by which an egg is fertilised by sperm outside the body: in vitro. IVF is a ... to collect a naturally selected ovum (egg) for fertilisation, it is known as natural cycle IVF.

Description : The duration 19-21 days refers to: (1) incubation period of hen's egg (2) average life-span of a red blood cell in humans (3) the period of menstrual cycle soon after menstruation, during ... to occur (4) period of completion of one schizogony cycle of malarial parasite inside a red blood cell

Last Answer : (3) the period of menstrual cy-cle soon after menstruation, during which fertilisation is most likely to occur Explanation: The menstrual cycle is the scientific term for the physiological changes ... 21 days or more between a woman's shortest and longest cycle lengths is considered very irregular

Description : Which of the following correctly explains the phenomenon of "Test Tube Bally"? (1) When every process of embryo formation is in the test tube. (2) When the embryo develops in a test tube ... is external and development is internal. (4) When the fertilisation is internal and development is external.

Last Answer : (3) When the fertilisation is external and development is internal. Explanation: Test tube baby is born from in vitro fertilization. In vitro fertilization (IVF) is a process by which an egg ... ) is then transferred to the patient's uterus with the intention of establishing a successful pregnancy.

Description : Which type of the fruit formed without fertilisation?

Last Answer : Parthenocarpy

Description : Fertilisation taking place outside the body of the organism is called

Last Answer : external fertilisation.

Description : Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.

Last Answer : (c) loss of half of the short arm of chromosome 5

Description : Sex is determined in human beings (a) by ovum (b) at time of fertilisation (c) 40 days after fertilisation (d) seventh to eight week when genitals differentiate in fetus.

Last Answer : (b) at time of fertilisation

Description : Which of the following statements is correct with reference to a test tube baby? (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother ... . (d) Fertilisation of the egg and growth of the embryo are affected in a large test tube.

Last Answer : (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother where the gestation is completed.

Description : The test tube baby means (a) fertilisation and development both in uterus (b) fertilisation in vitro and then transplantation in uterus (c) a baby grown in test tube (d) fertilised and developed embryo in test tube.

Last Answer : (b) fertilisation in vitro and then transplantation in uterus

Description : In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube? (a) Embryo only, upto 8 cell stage (b) Either zygote or early embryo upto 8 cell stage (c) Embryo of 32 cell stage (d) Zygote only

Last Answer : (b) Either zygote or early embryo upto 8 cell stage