Description : During cleavage, what is true about cells? (a) Nucleocytoplasmic ratio remains unchanged. (b) Size does not increase. (c) There is less consumption of oxygen. (d) The division is like meiosis.
Last Answer : b) Size does not increase.
Description : Assertion :- Cell growth results into division Reason :- Cell growth leads to change in nucleocytoplasmic ratio.
Last Answer : Assertion :- Cell growth results into division Reason :- Cell growth leads to change in nucleocytoplasmic ... D. If both Assertion & Reason are false.
Description : .Centromere is required for (a) replication of DNA (b) chromosome segregation (c) poleward movement of chromosomes (d) cytoplasmic cleavage.
Last Answer : (c) poleward movement of chromosomes
Description : Centromere is required for (a) movement of chromosomes towards poles (b) cytoplasmic cleavage (c) crossing over (d) transcription.
Last Answer : (a) movement of chromosomes towards poles
Description : Assertion : Distal centriole acts as a basal granule . Reason : Distal centriole induces cleavage in egg.
Last Answer : Assertion : Distal centriole acts as a basal granule . Reason : Distal centriole induces cleavage in egg ... D. If both Assertion & Reason are False.
Description : Assertion : Cleavage in human zygote is holoblastic . Reason : Its egg contain enormous quantity of yolk.
Last Answer : Assertion : Cleavage in human zygote is holoblastic . Reason : Its egg contain enormous quantity of yolk ... D. If both Assertion & Reason are False.
Description : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R): The reaction involves cleavage of C-O bo
Last Answer : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R ... R is false D. A is false but R is true
Description : By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- ... membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these
Last Answer : all of these
Description : .Acetabularia used in Hammerling’s nucleocytoplasmic experiments is (a) unicellular fungus (b) multicellular fungus (c) unicellular uninucleate green algae (d) unicellular multinucleate green algae.
Last Answer : (c) unicellular uninucleate green algae
Description : Which of the following events does not occur in rough endoplasmic reticulum? (a) Protein folding (b) Protein glycosylation (c) Cleavage of signal peptide (d) Phospholipid synthesis
Last Answer : (d) Phospholipid synthesis
Description : Which of the following events does not occur in rough endoplasmic reticulum ? (1) Protein folding (2) Protein glycosylation (3) Cleavage of signal peptide (4) Phospholipid synthesis
Last Answer : (4) Phospholipid synthesis
Description : What is true for cleavage? (a) Size of embryo increases (b) Size of cells decreases (c) Size of cells increases (d) Size of embryo decreases
Last Answer : (b) Size of cells decreases
Description : Assertion : Among the land animals. Cheetah can run faster over the ground. Reason : Cheetah uses its powerful forelimbs to push it self forward durin
Last Answer : Assertion : Among the land animals. Cheetah can run faster over the ground. Reason : Cheetah uses its ... D. If both Assertion and Reason are false.
Description : Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is no increase in cromosome number.
Last Answer : Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is ... False. D. If both Assertion & Reason are false.
Description : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place during meiosis-II.
Last Answer : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place ... . If both Assertion & Reason are false.
Description : Assertion:- Ribosomes are involved in protein synthesis. Reason:- They are membrane bound cell organelles.
Last Answer : Assertion:- Ribosomes are involved in protein synthesis. Reason:- They are membrane bound cell organelles. ... . If both Assertion & Reason are false.
Description : .Experiments on Acetabularia by Hammerling proved the role of (a) cytoplasm in controlling differentiation (b) nucleus in heredity (c) chromosomes in heredity (d) nucleo-cytoplasmic ratio.
Last Answer : (b) nucleus in heredity
Description : Assertion: Diversity observed in the entire geographical area is called gamma diversity. Reason: Biodiversity decreases from high altitude to low alti
Last Answer : Assertion: Diversity observed in the entire geographical area is called gamma diversity. Reason: ... If both assertion and reason are false.
Description : Assertion `:-` Emphysema is a chornnic disorder in which alveolar walls are damaged due to which respiratory surface decreases. Reason `:-` One of the
Last Answer : Assertion `:-` Emphysema is a chornnic disorder in which alveolar walls are damaged due to which ... D. If both Assertion & Reason are false.
Description : Assertion `:-` While ascending up a mountain , one gets less oxygen resulting in hypoxia. Reason `:-` Percentage of oxygen decreases in the air at hig
Last Answer : Assertion `:-` While ascending up a mountain , one gets less oxygen resulting in hypoxia. Reason `:- ... . D. If both Assertion & Reason are false.
Description : Assertion :- Metallic character increases on going down the group Reason :- I.E. decreases on going down the group
Last Answer : Assertion :- Metallic character increases on going down the group Reason :- I.E. decreases on going ... . D. If both Assertion & Reason are false
Description : Assertion :- Entropy of system increases for a spontaneous reactions. Reason :- Enthalpy of reaction always decreases for spontaneous reaction.
Last Answer : Assertion :- Entropy of system increases for a spontaneous reactions. Reason :- Enthalpy of reaction ... D. If both Assertion & Reason are false.
Description : Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant increases. Reason :- Oxidant gains electron(s)
Last Answer : Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant ... D. If both Assertion & Reason are False.
Description : Assertion: ADH reduces chloride loss in Urine. Reason: ADH decreases water absorption.
Last Answer : Assertion: ADH reduces chloride loss in Urine. Reason: ADH decreases water absorption. A. If both ... false D. If both Assertion and Reason are false
Description : Assertion:- A single human cell has approximately two meter long thread of DNA distributed in each chromosome. Reason:- Durring different stages of ce
Last Answer : Assertion:- A single human cell has approximately two meter long thread of DNA distributed in each ... D. If both Assertion & Reason are false.
Description : When the nurse observes that the patient's heart rate increases during inspiration and decreases during expiration, the nurse reports that the patient is demonstrating a) sinus dysrhythmia. Sinus dysrhythmia ... occurs when the sinus node regularly creates an impulse at a faster-than-normal rate.
Last Answer : a) sinus dysrhythmia. Sinus dysrhythmia occurs when the sinus node creates an impulse at an irregular rhythm.
Description : Blood platelets are: a) cytoplasmic fragments b) free nuclei c) a kind of red cell d) found only during clot formation
Last Answer : ANSWER: A -- Cytoplasmic fragments
Description : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage.
Last Answer : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage ... increases nor decreases but forms blasmtomeres.
Description : Which cell division is found during cleavage ?
Last Answer : Which cell division is found during cleavage ? A. Amitosis B. Mitosis C. Closed mitosis D. Meiosis
Description : During cleavage , what is true about embryo ?
Last Answer : During cleavage , what is true about embryo ? A. Nucleocytoplasmic ratio remains unchanged B. Sizes ... of oxygen D. The division is like meiosis.
Description : Cleavage divisions differ from normal mitotic divisions in that: (a) There is no nuclear division during cleavage (b) There is no division of cytoplasm during cleavage (c) The division of cytoplasm follows nuclear division (d) There is no period of growth in between divisions
Last Answer : Ans:(d)
Description : Which of the following features is not present in Periplaneta americana? (a) Exoskeleton composed of N-acetylglucosamine (b) Metamerically segmented body (c) Schizocoelom as body cavity (d) Indeterminate and radial cleavage during embryonic development
Last Answer : (a) Exoskeleton composed of N-acetylglucosamine
Description : Why is it more important to check for errors during DNA replication than during protein synthesis?
Last Answer : Because if an error is made during protein synthesis, the resultis at worst one bad protein. If an error is made during DNAreplication, that error will persist for the entire lifespan ofthat cell ... coding segment of DNA, it is possible that every proteinthat locus generates will now be defective.
Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary
Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids
Description : Is cytoplasmic movement the same as cyclosis? -Biology
Last Answer : answer:
Description : Which cytoplasmic organelles are treated as prokaryotic cells within the eukaryotic cells? -General Knowledge
Last Answer : The answer is 'Glyoxysomes'
Description : What is meant by cytoplasmic respiration ?
Last Answer : The process of respiration inside the cytoplasm is called cytoplasmic respiration.
Description : What is Hyaloprazum / Cytoplasmic Matrix ?
Last Answer : The semi- liquid , translucent , granular and homogeneous colloidal substance of cytoplasm is called cytoplasm matrix or hyaloplasm .
Description : What is cytoplasmic streaming ?
Last Answer : : The movement of cytoplasm around the cell cavity in plant cells is called cytoplasmic streaming.
Description : $ Inheritance of Kappa particles in Paramecium is type of extra-nuclear inheritance. ! The above process is also called Cytoplasmic inheritance.
Last Answer : $ Inheritance of Kappa particles in Paramecium is type of extra-nuclear inheritance. ! The above process is ... wrong D. If both As and R are wrong.
Description : Thin cytoplasmic layer is present in middle part of sperm is called :-
Last Answer : Thin cytoplasmic layer is present in middle part of sperm is called :- A. Nebenkern B. Manchette C. Axial filament D. Zensen ring
Description : When pollen sterility is caused by cytoplasmic genes
Last Answer : Ans. Cytoplasmic Male Sterility (CMS)
Description : Eicosanoids mediate inflammation in a variety of ways. Of the following statements, which are true with regard to this? a. Eicosanoids are stored in cytoplasmic granules ... include vasodilatation, vasoconstriction, increased vascular permeability and both chemotaxis and chemoattractant inhibition
Last Answer : Answer: b, d The eicosanoids are derived from arachidonic acid (eicosatetraenoic acid) and consist of prostaglandins, thromboxanes, leukotrienes and lipoxins. The eicosanoids are not ... nervous system d. Mononuclear phagocytes release a variety of proinflammatory cytokines and growth factors
Description : Which of the following statement(s) is/are true concerning the cell function of phagocytosis? a. Phagocytosis is a mechanistically distinct process of endocytosis performed by special cells to take ... known as clathrin d. Phagocytosis is performed only by white blood cells and tissue macrophages
Last Answer : Answer: a Phagocytosis is a specialized form of endocytosis by which large particles are internalized by specialized cells primarily macrophages and neutrophils. To be phagocytosed, particles ... the lumen of the thyroid follicle, thereby releasing the thyroid hormones, thyroxine triiodothyronine
Description : The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. ... or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process
Last Answer : Answer: a, b, c Transport vesicles that bud off the Golgi network carry both material to be secreted from the cell and protein destined to become components of the plasma ... but may also involve generation of diacylglycerol or production of cyclic AMP which activate kinases or phosphatases
Description : If therapy with multiple drugs causes induction of drug metabolism in your asthma patient, it will (a) Result in increased smooth endoplasmic reticulum (b) Result in increased rough endoplasmic reticulum ... soluble cytoplasmic fraction (d) Require 3-4 months to reach completion (e) Be irreversible
Last Answer : Ans: A
Description : The mechanism of action of cyclosporine involves (a) Activation of calcineurin (b) Binding to cyclophilin to cause inhibition of a cytoplasmic phosphatase (c) Blockade of interleukin – 2- receptors (d) Inhibition of phospholipase A2 (e) Suppression of bone marrow progenitors
Last Answer : Ans: B