Description : Part of the embryo from which early leaf is developed. -Biology
Last Answer : answer:
Description : In angiosperm, triple fusion is necessary for the formation of: (a) Embryo (b) Pollen (c) Endosperm (d) Leaf
Last Answer : Ans. ((c))
Description : Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and ... of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia
Last Answer : (d) Presence of vessel elements and absence of archegonia
Description : n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.
Last Answer : (b) megaspore, pollen grain and endosperm
Description : What are the three germline tissues developed by an embryo?
Last Answer : Endoderm, mesoderm, ectoderm.
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 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
Last Answer : fertilisation in vitro and then transplantation in the 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
Description : 3. In IVF technique zygote or early embryo is transferred into a. Cervical canal b. Uterus c. Fallopian tube d. Vagina
Last Answer : c. Fallopian tube
Description : Which part of an embryo grows into a root? -Biology
Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells
Last Answer : Ans. ((d))
Description : we've planted a white swamp oak tree early spring. the leaves are turning brown on outside of leaf. not enough water?
Last Answer : Need Answer
Description : Early leaf spot of groundnut is caused by
Last Answer : Ans. Cercospora arachidicola
Description : Early leaf spot disease of groundnut is caused by
Last Answer : Ans.Cercospora arachidicola
Description : The variety originated from a cross of King X Willow leaf is: a. Clementine b. Fair child c. Feutrell’s early d. Kinnow
Last Answer : Kinnow
Description : Fruit and leaf drop at early stages can be prevented by the application of (a) ethylene (b) auxins (c) gibberellic acid (d) cytokinins.
Last Answer : (b) auxins
Description : Fruit and leaf drop at early stages can be prevented by the application of: (1) Ethylene (2) Auxins (3) Gibberellic acid (4) Cytokinins
Last Answer : (2) Auxins
Description : What is the upper part of the embryo called ?
Last Answer : : It is called epicotyl.
Description : What is the lower part of the embryo called ?
Last Answer : The lower part of the embryonic stem is called epicotyle.
Description : The part which nourishes the embryo is
Last Answer : placenta.
Description : Which part of embryo forms the root?
Last Answer : Radicle
Description : Embryo sac occurs in (a) embryo (b) axis part of embryo (c) ovule (d) endosperm.
Last Answer : (c) ovule
Description : The coconut water and the edible part of coconut are equivalent to (a) endosperm (b) endocarp (c) mesocarp (d) embryo.
Last Answer : (a) endosperm
Description : 5.Scutellum, coleoptile, coleorhiza and epiblast are part of ---------------- . (a)Dicot embryo, b)Grass embryo, c)Castor seed, d)bean seed)
Last Answer : b)Grass embryo,
Description : 7 Which of the following is not a part of dicot embryo? a. Plumule b. Hypocotyle c. Coleoptile d. Radicle
Last Answer : Ans. c Coleoptile
Description : The coconut water and the edible part of coconut are equivalent to (1) Embryo (2) Endosperm (3) Endocarp (4) Mesocarp
Last Answer : (2) Endosperm
Description : Why did early civilizations developed for my writing?
Last Answer : They didn’t develop for your writing. But you have to write why.We don’t do students essays or homework. Your teacher is lookingfor your critical thinking skills and how well you understood thelesson. Not ours.
Description : A 45-year-old surgeon has developed symmetric early morning stiffness in her hands. She wishes to take a nonsteroidal anti-inflammatory drug to relieve these symptoms and wants to avoid gastrointestinal side ... appropriate? (a) Aspirin (b) Celecoxib (c) Ibuprofen (d) Indomethacin (e) Piroxicam
Last Answer : Ans: B
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) When and how does placenta develop in human female? (ii)How is the placenta connected to the embryo? (iii)Placenta acts as an endocrine gland. Explain. -Biology
Last Answer : (i)Development of placenta in human female After implantation of blastocyst, the finger-like projections called chorionic villi, appear on the trophoblast and is surrounded by uterine tissue and ... Chorionic Gonadotropin) (b) hPL (human Placental Lactogen) (c) Oestrogens (d) Progesteronem
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 : 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 : Mention the function of trophoblast in human embryo. -Biology
Last Answer : Trophoblast is the outer layer of blastocyst which helps in attachment of blastocyst to the endometrium of the uterus.
Description : What is embryo sac in plants? -Biology
Description : Explain embryo development in angiosperms. -Biology
Description : What is the function of embryo sac in plant? -Biology
Description : what is the function of the polar nucleus in an embryo sac? -Biology
Description : Nutrition of embryo sac? -Biology
Description : Why is the embryo sac called the female gametophyte? -Biology
Description : Structure of the embryo sac? -Biology
Description : Difference between ovule and embryo sac. -Biology
Description : What is the egg cell in the embryo sac? -Biology
Description : Difference between ovule and embryo sac? -Biology
Description : why the seed has an embryo and not zygote? -Biology