Description : .Epipetalous stamens with free filaments and fused anthers occur in (a) Asteraceae (b) Solanaceae (c) Liliaceae (d) Poaceae.
Last Answer : (a) Asteraceae
Description : Synandrous c9ndition is the fusion of (a) Filaments only (b) Both filaments and anthers (c) Anthers only (d) Petals
Last Answer : Ans. ((b))
Description : Stamens are fused with each other by their anthers and also with the petals in (1) Leguminosae (2) Liliaceae (3) Compositae (4) Euphorbiaceae
Last Answer : (3) Compositae Explanation: The loose union of structure of the same whorl is called cohesion, but the intimate histological union is called conflation. When anthers are fused with each other, the ... When there is fusion of stamens with petals, they are described as epipetalous e.g., Gamopetale.
Description : Stamens are fused with each other by their anthers and also with the petals in : (1) Leguminosae (2) Liliaceae (3) Compositae (4) Euphorbiaceae
Last Answer : Compositae
Description : Write the function of each of the following (i)Middle piece in human sperm (ii)Tapetum in anthers (iii)Luteinising hormone in human males -Biology
Last Answer : (i)Middle piece in human sperm contains several mitochondria which produces energy for the motility of the sperm. (ii) Tapetum in anthers It is the innermost layer of the anther. ... male stimulates the Leydig cells to produce testosterone, necessary to complete the process of spermatogenesis.
Description : What are monothecous anthers? -Biology
Last Answer : answer:
Description : What is the difference between monothecous and dithecous anthers? -Biology
Description : What does the anthers contain?
Last Answer : similar things as bones
Description : Swollen placenta, oblique septum and conniving anthers are characteristics of family: (a) Brassicaceae (b) Asterácéae (c) Poaceae (d) Solatiaceae
Last Answer : Ans. ((d))
Description : Flowers having stigma below the highest anthers are called _______: a. Apistigmatic b. Hypostigmatic c. Peristigmatic d. Exostimgatic
Last Answer : Apistigmatic
Description : Maturation of anthers and stigma at the same time refers to: a. Homogamy b. Chasmogamy c. Cleistogamy d. Dichogamy
Last Answer : Homogamy
Description : The anthesis is a phenomenon, which refers to (a) development of anthers (b) opening of flower bud (c) stigma receptors (d) all of these.
Last Answer : (b) opening of flower bud
Description : If there are 4 cells in anthers, what will be the number of pollen grains? (a) 16 (b) 12 (c) 8 (d) 4
Last Answer : a) 16
Description : Long filamentous threads protruding at the end of a young cob of maize are (a) hairs (b) anthers (c) styles (d) ovaries
Last Answer : (c) styles
Description : 10. “Cleistogamous flowers are invariably autogamous because” (a) These flowers do not open at all. (b) There is no chance of cross – pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated.
Last Answer : (a) These flowers do not open at all.
Description : Can I also wrap a line of colored lights around a tree with lighted filaments?
Last Answer : I imagine it’d be fine unless you bring the whole thing in the bathtub with you.
Description : Difference between microfilaments and intermediate filaments? -Biology
Description : Many fungi exist as branching networks of multicellular filaments. What characteristic of these filaments helps with nutrient absorption?
Last Answer : large surface area
Description : Fill in the blanks with the suitable words____filaments are thinner as compared to the _____ filaments, hence are commonly called ______ and filaments
Last Answer : Fill in the blanks with the suitable words____filaments are thinner as compared to the ... are commonly called ______ and filaments respectively.
Description : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____
Last Answer : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____
Description : A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
Last Answer : A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
Description : Myosin filaments are localized in
Last Answer : Myosin filaments are localized in A. Z band B. H band C. A band D. None of the above
Description : At rest, when mucsle is relaed, thin filaments interdigitate with thick filaments only
Last Answer : At rest, when mucsle is relaed, thin filaments interdigitate with thick filaments only A. Outside A band B. ... band C. Inside A band D. Inside M line
Description : The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 W power and the other 60 W power, then
Last Answer : The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 ... D. Both the filaments have same cross-sectional area
Description : What are the filaments called that help some bacteria stick to surface and exchange plasmids through conjugation?
Last Answer : Pili are filaments that help bacteria stick to the surface andexchange plasmid through conjugation.
Description : The activities of the cytoskeleton is dependent on which of the following types of filaments? a. Microtubules b. Intermediate filaments c. Actin filaments d. None of the above
Last Answer : Answer: a, b, c The cytoskeleton is a collection of filamentous protein structures that allow cells to assume and maintain a variety of shapes, to produce directed movement of ... activities depend upon three main types of filaments: actin filaments, intermediate filaments, and microtubules
Description : Consider the following statements: 1. Cross bridges can cause muscle contraction. 2. They are able to oscillate back and forth and hook up with active sites on actin filaments 3. The bridges enable the thin filaments to pull the thick filaments by a ... (a) 1, 2 (b) 2, 3 (c) 1, 2, 4 (d) 1, 2, 3, 4
Last Answer : Ans:(c)
Description : The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the ... myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band
Description : Which metal is used in the filaments of electric lamps?
Last Answer : Tungsten
Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene
Last Answer : (A) Acrylic
Description : All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic (A) Filaments (B) Pipes (C) Buckets (D) Tubings
Last Answer : (C) Buckets
Description : With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state
Last Answer : actin is the major constituent of thin filaments
Description : Centriole consists of how many paired filaments a. 5 b. 7 c. 9 d. 11
Last Answer : 11
Description : Select the correct statement regarding the specific disorder of muscular or skeletal system. (a) Muscular dystrophy - Age related shortening of muscles (b) Osteoporosis - Decrease in bone mass and ... of myosin filaments (d) Gout - Inflammation of joints due to extra deposition of calcium
Last Answer : (b) Osteoporosis – Decrease in bone mass and higher chances of fractures with advancing age
Description : During muscle contraction in humans, the (a) sarcomere does not shorten (b) A band remains same (c) A, H and I bands shorten (d) actin filaments shorten.
Last Answer : (b) A band remains same
Description : The H-zone in the skeletal muscle fibre is due to (a) the central gap between actin filaments extending through myosin filaments in the A-band (b) extension of myosin filaments in the central portion ... the central portion of A-band (d) the central gap between myosin filaments in the A-band.
Last Answer : (a) the central gap between actin filaments extending through myosin filaments in the A-band
Description : Sliding filament theory can be best explained as (a) actin and myosin filaments do not shorten but rather slide pass each other (b) when myofilaments slide pass each other, myosin filaments shorten ... filaments do not shorten (d) actin and myosin filaments shorten and slide pass each other.
Last Answer : (a) actin and myosin filaments do not shorten but rather slide pass each other
Description : Cytoskeleton is made up of (a) callose deposits (b) cellulosic microfibrils (c) proteinaceous filaments (d) calcium carbonate granules.
Last Answer : (c) proteinaceous filaments
Description : The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as (a) microtubules (b) microfilaments (c) intermediate filaments (d) lamins.
Last Answer : (b) microfilaments
Description : Hair found in the inflorescence of Zea mays are the modification of (a) style (b) stigma (c) spathe (d) filaments.
Last Answer : (a) style
Description : Ulothrix filaments produce (a) heterogametes (b) basidiospores (c) isogametes (d) anisogametes
Last Answer : (c) isogametes
Description : Organisms are parasitic and have a resistant spore with one to six coiled polar filaments belong to which phylum of Protozoa? A.Labyinthomorpha B.Sarcomastigophora C.Apicomplexa D.Myxozoa
Last Answer : D.Myxozoa
Description : The protein from which hook and filaments of flagella are composed of, is A- keratin B- flagellin C- gelatin D- casein
Last Answer : flagellin
Description : To preserve the filaments at high temprature, which gas is filled in the electric bulbs?
Last Answer : Argon.
Description : As the tube filaments in the load heat up, will the circuit current increase or decrease?
Last Answer : Decrease.
Description : Which one of the following materials is useful for making bulb filaments? a. aluminum b. Iron c. Copper d. Tungsten
Last Answer : a. aluminum
Description : What is the function of proteins like microtubules and actin filaments?
Last Answer : Give structure to cells.
Description : Endoskeleton of a cell is made up of (A) Microtubules (B) Microfilaments (C) Intermediate filaments (D) All of these
Last Answer : (D) All of these