pea . Bihar Board 12th Biology Objective Questions and Answers Bihar Board 12th Biology Objective Answers Chapter 2 Sexual Reproduction in Flowering Plants Question 1. (1) Tympanum (2) Semicircular canals (3) Cochlea (4) Auditory … Fusion of two dissimilar gametes is known as a. Fertilization b. Autogamy ... An intere sting mo dification of flower shape for insect pollination occurs in some orchids in which a … 6.Complete the following flow chart vegetative cell Pollen mother cell pollen tetrad Pollen grain-----Ans. Identify the correct pair of combinations (i) Vallisneria- Long stalked female flowers-Hydrophily (ii) Tribulus- Annual-Root succulent (iii) Hydrilla-Submerged rooted hydrophyte-Aerenchyma (iv) Casuarina-Perennial-Phylloclades. . 4.3 maize Agents for Cross Pollination The agents responsible for cross pollination are wind. The number of meiotic divisions required to produce 400 seeds in a pea plant is (A) 400 ... Hydrophily (D) Chiropterophily . Q. Classify flowers on the basis of position of the floral leaves and ovary on the thalamus? View Answer. What's the difference between Cross Pollination and Self Pollination? Female Reproductive Unit : • The pistil or gynoecium represents the female reproductive unit of a flower. Hydrophilic pollen of sea grasses characterized by submarine pollination is 2–3 mm long and a few dozen microns wide. C. Chasmogamous flowers do not open at all. Pollen grains are long, without exine, heavier than water , sink down to meet stigma of female flowers. 3. (2) Meiosis occurs during gametogenesis (3) Meiosis I results in two daughter cells (4) Meiosis I is similar to Mitosis 5. • The gynoecium may have single pistil (called monocarpellary), more than two pistils (called multicarpellary), fused pistils (called syncarpous) or free pistils (called apocarpous). Egg apparatus consists of easytutorial.in. Egg ... Hydrophily c. Entomophily d. Zoophily 14. c. Papaya and Pea d. Brassica and Candytuft 4. It occurs by cleistogamy and homogamy.e.g. By water (Hydrophily). Pollination. It is the transfer of pollen grains from the anther (or microsporophyll) to stigma (receptive regions of megasporophyll).. Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style. This leads to the process of pollination. • Inside the ovary there is a … This occurs by several mechanism, however, all apomitic seed have genetic material only from the female plant. Sunflower, pea, Commelina etc.B) Geitonogamy (geiton = neighbour, gamos=marriage)• It is a kind of pollination in which the pollen from the anther of one flower aretransferred to the stigma of another flower bom on the same plant is calledgcitonogamy.• D) Datura ... Pollination which occurs in closed flowers is known as [AFMC 1994] A) Allogamy done clear. Stigma. 18. Which one of the following is NOT associated with the process of … You can write a book review and share your experiences. Occurs between the plants o' the Some external agents wind. e.g., Pea, Rice. What is Pollination? Six agents of pollination are. Discuss; FYGDTMLNYKFZSV-MRCIVHHJSA-N Dextrin Chemical compound data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc … The mature anthers dehisce and release pollen -grains (haploid microspores). It seen in plants like Ceratophyllum, Hydrilla. The plant that shows hydrophily (A) Vallisneria (B) Maize (C) Pea (D) Raffiesia 6. Schematic Diagram of the Four Floral Whorls (1 to 4) and Three Regions (A to C) of Homeotic Gene Action. 8. Adapted from Coen and Meyerowitz (1991). NEET 2017 Biology solution (With NCERT Reference) 1. 41. Abstract— Photoinduced pH changes in unbuffered solutions of undegraded pea phytochrome were studied at 10oC by using a glass electrode. Wind- it is called Anemophily. 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Books you 've read: it is similar to that of cross-pollination discuss ; FYGDTMLNYKFZSV-MRCIVHHJSA-N Dextrin compound.