Description : What is common between vegetative reproduction and apomixis? (a) Both are applicable to only dicot plants. (b) Both bypass the flowering phase. (c) Both occur round the year. (d) Both produce progeny identical to the parent.
Last Answer : (d) Both produce progeny identical to the parent
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 : All the progeny obtained from a single plant by vegetative pro pa-gallon are called - (1) Clones (2) Pure line (3) Indred line (4) Pedigree line
Last Answer : (1) Clones Explanation: A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable ... their original characteristics after many years of vegetative propagation i.e. they are stable.
Description : All the progeny obtained from a single plant by vegetative propagation are called (1) Clones (2) Pure line (3) Indred line (4) Pedigree line
Last Answer : Clones
Description : Seed formation without fertilisation in flowering plants involves the process of (a) somatic hybridisation (b) apomixis (c) sporulation (d) budding
Last Answer : (b) apomixis
Description : $ Asexual reproduction is also called Apomixis. ! Apogamy shortens the life cycle of a plant.
Last Answer : $ Asexual reproduction is also called Apomixis. ! Apogamy shortens the life cycle of a plant. A. If both ... is wrong D. If both As and R are wrong.
Description : Give two reasons for the appearance of variations among the progeny formed by sexual reproduction. -Biology
Last Answer : Now, the two major reasons for appearance of variation among the progeny formed from sexual reproduction are; crossing over in which the DNA gets exchanged between the homologous chromosomes during the meiosis that causes variation in the offspring.
Description : Progeny of a single plant, obtained by asexual reproduction
Last Answer : Ans. Clone
Description : Gnetum, when not in flowering can be easily mistaken for a .............. a) tree fern b) dicot plant c) monocot plant d) thalloid plant
Last Answer : b) dicot plant
Description : Photoperiodism affects – (1) All of these (2) Flowering (3) Vegetative growth (4) Fruiting
Last Answer : (1) All of these Explanation: Photoperiodism is the developmental responses of plants to the relative lengths of light and dark periods. It affects the vegetative growth as well as ... period, while in yet other species the plant may continue vegetative development indefinitely without flowering.
Description : What are artificial methods of vegetative propagation in flowering plants?
Last Answer : Some plants can be artificially propagated by using their vegetative parts and this is called artificial vegetative propagation. Following are the types of artificial vegetative propagation: - 1) CUTTING: - ... vegetative propagation. ii) For example onion bulb, Canna or lily and potato tuber.
Description : What are natural methods of vegetative propagation in flowering plants?
Last Answer : 1) BY STEM: - The methods of vegetative propagation by stem are runners and suckers. Runners: i) A runner is long and thin stem, which creep along the surface of soil. ii) It gives ... ground, the adventitious buds appear in the notches with adventitious roots. iv) These grow into new plants.
Description : unlike sexual reproduction, vegetative reproduction -General Knowledge
Last Answer : Unlike sexual reproduction, vegetative reproduction: produces offspring by mitosis.
Description : Why is vegetative reproduction also considered as a type of asexual reproduction? -Biology
Last Answer : answer:
Description : Explain vegetative reproduction in higher plants. -Biology
Description : Vegetative reproduction in algae. -Biology
Description : $ Those parts of the plants which help in vegetative reproduction are called propagules. ! Vegetative propagation is a type of Asexual reproduction
Last Answer : $ Those parts of the plants which help in vegetative reproduction are called propagules. ! Vegetative propagation ... D. If both As and R are wrong.
Description : $ Flower is a modified shoot which helps in sexual reproduction. ! Monoparental reproduction is also called vegetative reproduction.
Last Answer : $ Flower is a modified shoot which helps in sexual reproduction. ! Monoparental reproduction is also called ... D. If both As and R are wrong.
Description : Bulbils takes part in - (1) Sexual reproduction (2) Vegetative reproduction (3) Food storage (4) Respiration
Last Answer : (2) Vegetative reproduction Explanation: Bulbil is a small bulblike organ of vegetative re-production growing in leaf axils or on flower stalks of plants such as the onion and tiger lily. It is a ... from the parent plant on to the ground, give out adventitious roots and develop into new plants.
Description : Mendel's principles of inheritance are based on – (1) Vegetative reproduction (2) Asexual reproduction (3) Sexual reproduction (4) All of the above
Last Answer : (3) Sexual reproduction Explanation: Genes located on different chromosomes will be inherited independently of each other. Mendel observed that, when peas with more than one trait were crossed, the progeny did not always match the parents.
Description : The seeds of certain plants fail to germinate if they do not pass through the digestive tract of fruit-eating birds. This is due to - (1) hibernation (2) seed coat impermeability (3) infertility (4) vegetative reproduction
Last Answer : (2) seed coat impermeability Explanation: A dormant seed is one that is unable to germinate in a specified period of time under a combination of environmental factors that are ... to prevent germination during unsuitable ecological conditions, but the probability of seedling survival is low.
Description : Eyes of potato are useful for - (1) Nutrition (2) Respiration (3) Reproduction (4) Vegetative propagation
Last Answer : (4) Vegetative propagation Explanation: Any potato variety can be propagated vegetatively by planting tubers, pieces of tubers, cut to include at least one or two eyes, or also by cuttings, a ... worms. The tapeworms use their head, called the scolex, to attach themselves to the intestinal wall.
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 : 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 : Vegetative reproduction of Agave occurs through (a) rhizome (b) stolon (c) bulbils (d) sucker.
Last Answer : (c) bulbils
Description : In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of (a) gamete formation (b) zoospore formation (c) zygospore germination (d) vegetative reproduction.
Last Answer : (c) zygospore germination
Description : Write short notes on leaves that help in vegetative reproduction
Last Answer : Ans: Leaves which have epiphyllous buds help in vegetative reproduction. Such leaves are called as reproductive leaves. In Bryophyllum, notches of leaf margins have epiphyllous buds which upon shedding strike ... buds arise at the leaf tip and in Begonia from the wounded regions of leaf.
Description : Advantages of Artificial Methods of Vegetative Reproduction include a) Crops with better quality b) Crops with more yield c) Ability to produce plants with desirable qualities d) All of these
Last Answer : c) Ability to produce plants with desirable qualities
Description : External agencies are not required in a) natural vegetative propagation b) sexual reproduction c) bisexual reproduction d) trisexual reproduction
Last Answer : a) natural vegetative propagation
Description : Bulbils takes part in (1) Sexual reproduction (2) Vegetative reproduction (3) Food storage (4) Respiration
Last Answer : Vegetative reproduction
Description : The seeds of certain plants fail to germinate if they do not pass through the digestive tract of fruit-eating birds. This is due to (1) hibernation (2) seed coat impermeability (3) infertility (4) vegetative reproduction
Last Answer : seed coat impermeability
Description : Eyes of potato are useful for (1) Nutrition (2) Respiration (3) Reproduction (4) Vegetative propagation
Last Answer : Vegetative propagation
Description : MO become void when a) The MO not paid to payee or remitter b) The MO not paid to payee or remitter at the end of the month following the month of its issue c) The MO not paid to payee or remitter at the end of the year d) None of these
Last Answer : b) The MO not paid to payee or remitter at the end of the month following the month of its issue
Description : Mark the incorrect option a) EA & Yugal suraksha policies may be surrendered or made paid up after 3 years. b) WL and CWL policies may be surrendered or made paid up after 4 years c) AEA policy may ... All the above Ans:c ( AEA policy cannot be surrendered) 25. As per revised Govt policy the insura
Last Answer : c) AEA policy may be surrendered after 3 year
Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.
Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
Description : Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. ... supply circuit breaker in the open position. D. Station a man at the circuit supply switch.
Last Answer : Answer: C
Description : 33. Dia-pause is a stage of ... b) Suspended reproduction b) suspended growth c) suspended flowering d) suspended development
Last Answer : d) suspended development
Description : 13. Dia-pause is a stage of ... a) Suspended reproduction b) suspended growth c) suspended flowering d) suspended development
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 : Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes ? How the human karyotype is usually represented?
Last Answer : Except for clones (individuals created from nucleus transplantation, like the Dolly sheep) and monozygotic twins, it is very improbable the genomes of two individuals of the same species and generated by sexual ... normal karyotype is represented by the formula 44+XX for women and 44+XY for men.
Description : A common test to find the genotype of a hybrid is by (a) crossing of one F2 progeny with female parent (b) studying the sexual behaviour of F1 progenies (c) crossing of one F1 progeny with male parent (d) crossing of one F2 progeny with male parent
Last Answer : (c) crossing of one F1 progeny with male parent
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 : You're stranded in a rainforest, and you've eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces ... how to use conditional probability to make sure you lick the right frog and get out alive. -Riddles
Last Answer : If you chose to go to the clearing, you're right, but the hard part is correctly calculating your odds. There are two common incorrect ways of solving this problem. Wrong answer number one: ... best options so that maybe next time, we can avoid eating that poisonous mushroom in the first place.
Description : A bacterial colony containing DNA made up of 100% N15 nitrogen bases is allowed to replicate in a medium containing N14 bases. After one round of replication the result would be a) All individuals ... Only 50% individuals would be hybrids d) All individuals would have DNA made up of 100% N14
Last Answer : b) All individuals will be hybrids
Description : Endodermis occurs in (a) Stems only (b) Roots only (c) Dicot stems and all types of roots (d) Both monocot and dicot stems as well as roots
Last Answer : Ans:(c)
Description : Are pollination and fertilization necessary in apomixis? -Biology
Description : What is apomixis in plant breeding? -Biology
Last Answer : Apomixis (asexual seed formation) is the result of a plant gaining the ability to bypass the most fundamental aspects of sexual reproduction: meiosis and fertilization. Without the need for male fertilization, the resulting seed germinates a plant that develops as a maternal clone
Description : Importance of apomixis in plant breeding? -Biology
Last Answer : Apomixis produces seed progeny that are exact replicas of the mother plant. The major advantage of apomixis over sexual reproduction is the possibility to select individuals with desirable gene combinations and to propagate them as clones.
Description : What is the difference between apomixis and parthenocarpy? -Biology
Description : Difference between parthenocarpy and apomixis. -Biology