Description : Hybrid varieties of cucumber grown in tunnels are: a. Parthenocarpic b. Zygotic c. Both types d. None of these
Last Answer : Parthenocarpic
Description : Apomictic seedlings are also called as: a. Nucellar seedlings b. Sexual seedlings c. Embryonic seedlings d. None
Last Answer : Nucellar seedling
Description : The development of fruit without fertilization or seed is called as: a. Pollination b. polyembryony c. pseudogamy d. Parthenocarpy
Last Answer : Parthenocarpy
Description : Polyembryony means a. One embryo b. Two embryo c. More than two embryo d. More than three embryo
Last Answer : More than three embryo
Description : In nursery production, a “liner” refers to __________. a. A plastic bag b. A rooted cutting or small seedling c. A type of garden tool d. A plastic mulch covering
Last Answer : A rooted cutting or small seedling
Description : Can you Bonsai a Avacoco seedling like other seedlings by cutting the tap root?
Last Answer : It wont work. You will probaly kill the plant. Avocado trees grow to be big size if planted out doors in a sub tropical climate. If you want a small one you have to pick a variety that remains small.
Description : Transplanter using soil bearing seedlings are more popular than washed root seedling transplanter because of a) less labour requirement b) lesser plant missing percentage c) higher work rates d) all of the above
Last Answer : d) all of the above
Description : Transplanting means a. Shifting of seedlings b. Shifting of large plants c. Shifting of potted plants d. All of these
Last Answer : Shifting of seedlings
Description : Which of the following vegetable is also called as ‘poor man’s food’? a. Carrot b. Onion c. Redish d. Potato
Last Answer : Onion
Description : The stamens are the male organs of flower which are also called a. Pistil b. Gynoecium c. Androecium d. Carpel
Last Answer : Androecium
Description : Tap roots of plants are also called as a. Secondary roots b. Adventitious roots c. Primary roots d. Tertiary roots
Last Answer : Primary roots
Description : Stooling is also called as a. Sexual propagatiobn b. Cutting c. Gooti layering d. Mound layering
Last Answer : Mound layering
Description : Inarching is also called as a. cutting b. Budding c. approach grafting d. non of these
Last Answer : approach grafting
Description : Reproduction of plants through seeds are also called: a. Asexual propagation b. Vegetative propagation c. Sexual propagation d. Tissue culture
Last Answer : Sexual propagation
Description : Date palm is also called as: a. Feather palm b. Wild palm c. Century palm d. Domestic palm
Last Answer : Feather palm
Description : A plant hardy in tropical zone will also be hardy in zone: a. Temperate b. Subtropical c. Arid d. Semi-arid
Last Answer : Subtropical
Description : Lemons and limes can also be propagated by a. Layering b. Cuttings c. a & b d. None
Last Answer : a & b
Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above
Last Answer : Auxins
Description : Which of the family is also named as Nightshade family: a. Alliace b. Cucurbitaceae c. Solanaceae d. None of above
Last Answer : Solanaceae
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 : $ Zygotic meiosis occurs at the time of germination of zygote. ! Zyogote may be diploid or triploid
Last Answer : $ Zygotic meiosis occurs at the time of germination of zygote. ! Zyogote may be diploid or triploid A. If ... is wrong D. If both As and R are wrong.
Description : Which of the following statements is not true about somatic embryogenesis? (a) The pattern of development of a somatic embryo is comparable to that of a zygotic embryo. (b) Somatic embryos can develop from ... an auxin such as 2, 4-D. (d) A somatic embryo develops from a somatic cell.
Last Answer : (b) Somatic embryos can develop from microspores.
Description : .Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child? (a) Two X chromosomes (b) Only one Y chromosome (c) Only one X chromosome (d) One X and one Y chromosome
Last Answer : (a) Two X chromosomes
Description : Adventive embryony in Citrus is due to (a) nucellus (b) integuments (c) zygotic embryo (d) fertilized egg.
Last Answer : nucellus
Description : Zygotic meiosis is characteristic of (a) Fucus (b) Funaria (c) Chlamydomonas (d) Marchantia
Last Answer : (c) Chlamydomonas
Description : 2.Which of the following organism shows zygotic meiosis? (a) Nephrolepis, b)Pinus, c) Spirogyra d) mango)
Last Answer : c) Spirogyra
Description : Zygotic meiosis is characteristic of; (1) Fucus (2) Funaria (3) Chlamydomonas (4) Marchantia
Last Answer : (3) Chlamydomonas
Description : The plants shed their leaves during autumn are called; a. Evergreen b. Deciduous c. Hardy plants d. Non of them
Last Answer : Deciduous
Description : A change in genetic constitution, which arises suddenly and not to segregation and recombination of genes in sexual reproduction is called as: a. Hybridization b. Bud variation c. Mutation d. Non of them
Last Answer : Mutation
Description : Formation of diploid embryosac from diploid vegetative structure, e.g., nucellus or integument etc., without meiosis is called: (a) Apospory (b) Apomixis (c) Diplospory (d) Adventives polyembryony
Last Answer : Ans. ((a))
Description : The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony
Last Answer : Ans. b) Pollination
Description : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as
Last Answer : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as – Adventive polyembryony
Description : Should I pinch suckers off my tomato plants even though they've gotten big and now have blossoms on them?
Last Answer : The only disadvantage of suckers is that the more you have, the less the tomatoes will weigh. The more suckers you have, the more tomatoes you will harvest, although they will be smaller. Your choice.
Description : Which of the following is the proper recommendation for pruning trees at planting. a. Pruning should be limited to shaping the plant by removing dead or damaged limbs b. Trees should be cut back to at ... d. Trees should not be pruned at all - the latest trend is to let them develop naturally
Last Answer : Pruning should be limited to shaping the plant by removing dead or damaged limbs
Description : To preserve the germination ability of most seeds, store them in a: a. Warm, dry environment b. Cool, dry environment c. Cool environment after scarification d. Warm, moist environment after stratificatio
Last Answer : Cool, dry environment
Description : The sweet orange is a a. Loose skinned b. Tight skinned c. Both of them d. Non of these
Last Answer : Tight skinned
Description : Botanical name of sweet orange is a. C. citrii b. C. chinensis c. C. sinensis d. Non of them
Last Answer : C. sinensis
Description : Severe pruning in grapes is recommended: a. Every year b. After two year c. After three year d. None of them
Last Answer : Every year
Description : What is polyembryony ?
Last Answer : Polyembryony is the phenomenon in which a single embryo in its initial embryonic stage divides itself forming many new individuals of the same sex and genetically identical. This is the way, for ... place in armadillos of the genus Dasypus. Polyembryony is an example of natural cloning .
Description : The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas
Last Answer : (3) Citrus Explanation: In citrus fruits such as oranges, the nuclear cells that surround the embryo start dividing and protrude into the embryo sac. These develop into embryos; thus resulting in the presence of more than one embryo inside each ovule. This condition is known as polyembryony.
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 : The polyembryony commonly occurs in (a) tomato (b) potato (c) Citrus (d) turmeric.
Last Answer : (c) Citrus
Description : Nucellar polyembryony is reported in species of (a) Citrus (b) Gossypium (c) Triticum (d) Brassica.
Last Answer : (a) Citrus
Description : Which one of the following generates new genetic combinations leading to variation? (a) Vegetative reproduction (b) Parthenogenesis (c) Sexual reproduction (d) Nucellar polyembryony
Last Answer : (c) Sexual reproduction
Description : Occurrence of more than one embryo in a seed is known as: a) Polyembryony b) parthenocarpy c) Apomixis d) Embryogeny
Last Answer : Ans: a) Polyembryony
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 : The seeds of Pinus plant show a. Polyembryony b. One embryo c. No embryo d. Redundant embryo
Last Answer : a. Polyembryony
Description : Nucellar polyembryony is reported in species of:a) Citrusb) Gossypiumc) Triticumd) Brassica
Last Answer : a) Citrus
Description : The chemicals which induce artificial polyembryony are
Last Answer : The chemicals which induce artificial polyembryony are – 2,4 D; 2,4,5, T, and NAA
Last Answer : Citrus