Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth
Last Answer : c) seed is naked
Description : What type of pollination takes place in Vallisneria? (a) Pollination occurs in submerged condition by water. (b) Flowers emerge above surface of water, and pollination occurs by insects. (c) Flowers ... wind. (d) Male flowers are carried by water currents to female flowers at surface of water.
Last Answer : (d) Male flowers are carried by water currents to female flowers at surface of water
Description : Read the following five statements (A - E) and answer as asked next to them. (A) In Equisetum, the female gametophyte is retained on the parent sporophyte. (B) In Ginkgo, male gametophyte is not independent. (C ... . How many of the above statements are correct? (a) Two (b) Three (c) Four (d) One
Last Answer : (d) One
Description : Explain development of female gametophyte in a flowering plant. -Biology
Last Answer : answer:
Description : What is meant by monosporic development of female gametophyte?
Last Answer : Ans: The method of embryo sac formation from single megaspore is called monosporic development.
Description : What is the hybrid you obtain when a cross takes place between female donkey anda male horse?
Last Answer : Hinny
Description : Erythroblastosis fetalis is caused when fertilisation takes place between gametes of (a) Rh– female and Rh+ male (b) Rh+ female and Rh– male (c) Rh+ female and Rh+ male (d) Rh– female and Rh– male.
Last Answer : (a) Rh– female and Rh+ male
Description : Male gametophyte of angiosperms is shed at (a) four celled pollen grain (b) three celled pollen grain (c) microspore mother cell (d) anther.
Last Answer : b) three celled pollen grain
Description : Male gametophyte of angiosperms/monocots is (a) microsporangium (b) nucellus (c) microspore (d) stamen
Last Answer : (c) microspore
Description : Male gametophyte in angiosperms produces (a) single sperm and two vegetative cells (b) three sperms (c) two sperms and a vegetative cell (d) single sperm and a vegetative cell.
Last Answer : (c) two sperms and a vegetative cell
Description : Male gametophyte in angiosperms consists of
Last Answer : Male gametophyte in angiosperms consists of – Pollen grains, pollen tube, tube nucleus and two male nuclei.
Description : A typical angiospermic anther is; a) Bilobed b) unilobed c) Trilobed d) Tetralobed
Last Answer : Ans: a) Bilobed
Description : If there are 16 chromosomes in the cell of an angiospermic plant, how many chromosomes are there in the perisperm and endosperm cell
Last Answer : Ans: 16 in perisperm as it is diploid and 24 in endosperm as it is triploid
Description : Today, is it proper for a female to send flowers to a male?
Last Answer : Anytime the credit card isn’t overdrawn.
Description : which flowers do you remove from the zucchini plants & how can you tell which is male/female
Last Answer : We don't remove any.............we let them all bloom...........
Description : My pumpkins only have male flowers, how do I get female flowers?
Last Answer : Need Answer
Description : Flowers of Ophrys resembles female wasp Colpa and are pollinated by male wasp. The flowers show mimicry
Last Answer : Flowers of Ophrys resembles female wasp Colpa and are pollinated by male wasp. The flowers ... type aggressive D. concealing type aggressive mimicry
Description : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae
Last Answer : Ans. ((b))
Description : When male and female flowers occur on different plants
Last Answer : Ans. Diocious
Description : When male and female flowers occur on the same plant
Last Answer : Ans. Monocius
Description : When male and female flowers of a hermaphrodite flower matures at different time
Last Answer : Ans. Dichogamy
Description : The plants with male and female flowers on different plants are called (A)Dicot (B) Dichogamy (C) Dicliny (D) Dioecious
Last Answer : (D) Dioecious
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 : Monoecious plants have male and female sexes/flowers on a. Same plant b. Different plants c. Both of these d. None of these
Last Answer : Same plant
Description : Which is the structure in which the female gametophyte develops? -Biology
Description : In pines the female gametophyte contains? -Biology
Description : Why is the embryo sac called the female gametophyte? -Biology
Description : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous.
Last Answer : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous. A. If both As ... D. If both As and R are wrong.
Description : Female gametophyte of angiosperms is represented by (a) ovule (b) megaspore mother cell (c) embryo sac (d) nucellus.
Last Answer : (c) embryo sac
Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.
Last Answer : (d) Origin of seed habit can be traced in pteridophytes.
Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.
Last Answer : (b) female gametophyte lacks archegonia
Description : In angiosperm female gametophyte is: a) Embryo b) Egg Apparatus c)Embryo sac d) synergids
Last Answer : Ans: c)Embryo sac
Description : Female gametophyte of Gnetum follows the developmental pattern of ..... a) tetrasporic type b) bisporic type c) monosporic type d) none of the above.
Last Answer : a) tetrasporic type
Description : 85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes
Last Answer : Origin of seed habit can be traced in pteridophytes
Description : How can you describe the structure and function of the male and female reproductive parts of a typical flower?
Last Answer : Some flowers have both male and female organs in the flower.Some flowers have separate male and female flowers. Some plantshave separate PLANTS for each sex.A handy way of remembering is Pistol Packing Mama ... the style and into the ovarywhere it goes into the ovule to fertilize and create a seed.
Description : Examine the given figure and select the correct option giving all the four parts (A, B, C and D) rightly identified. A B C D (a) Archego- Female Gemma Rhizoids niophore thallus cup ( ... thallus (c) Seta Sporo- Proto- Rhizoids phyte nema (d) Antherid- Male- Globule Roots iophore thallus
Last Answer : (a) Archego- Female Gemma Rhizoids niophore thallus cup
Description : What part or parts of the male and female reproductive systems are typically colonized by indigenous microbiota? a. Male: Ureters; Female: Vagina And Ovaries b. Male: Testes And Epididymis c. Male: ... : Vagina, Vulva, And Cervix d. Male: Bladder And Ureters; Female: Fallopian Tubes And Cervix
Last Answer : c. Male: Urethra; Female: Vagina, Vulva, And Cervix
Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis
Description : Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory
Last Answer : Ans. ((c))
Description : Which one of the following is considered important in the development of seed habit? (a) Heterospory (b) Haplontic life cycle (c) Free-living gametophyte (d) Dependent sporophyte
Last Answer : (a) Heterospory
Description : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are
Last Answer : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are
Description : Is the male and female rectum located in the same place?
Last Answer : Need answer
Description : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce
Last Answer : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous ... . If both Assertion & Reason are False.
Description : Bisexual flowers are present in both Clerodendron and Scrophularia. Still cross pollination takes place. How?
Last Answer : Ans: In clerodendron the androecium attains maturity earlier than gynoecium and in Scrophulria the gynoecium attains maturity earlier than androecium.
Description : Ovulation in the human female normally takes place during the menstrual cycle
Last Answer : Ovulation in the human female normally takes place during the menstrual cycle A. At the end of ... D. At the beginning of the proliferative phase
Description : Ovulation in the human female normally takes place during the menstrual cycle (a) at the mid secretory phase (b) just before the end of the secretory phase (c) at the beginning of the proliferative phase (d) at the end of the proliferative phase.
Last Answer : (d) at the end of the proliferative phase.
Description : In which part of the female flower does fertilization takes place?
Last Answer : Ovary
Description : Which of the following statement about reproductions in human is correct. a) fertilisation takes place externally b) fertilisation takes place in the testes c) during fertilisation egg moves towards sperm d) fertilisation takes place in human female
Last Answer : d) fertilisation takes place in human female
Description : Photosynthesis generally takes place in which parts of the plant?
Last Answer : Leaf and other chloroplast bearing parts
Description : Conduction of food from leaves to differ- ent plants parts takes place through?
Last Answer : Phloem