Description : Centrioles are present only in animals. In such a case how the spindle fibres are held in the cell division of plants? -Biology
Last Answer : answer:
Description : Assertion:- All eukaryotic cells are not identical. Reason:- Centrioles are found in animal cells, absent in almost all plant cell.
Last Answer : Assertion:- All eukaryotic cells are not identical. Reason:- Centrioles are found in animal cells, absent ... D. If both Assertion & Reason are false.
Description : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of attachment of spindle fibres to the chromosome.
Last Answer : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of ... D. If both Assertion & 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 : Microtubules are absent in (a) mitochondria (b) flagella (c) spindle fibres (d) centrioles.
Last Answer : (a) mitochondria
Description : Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.
Last Answer : (d) spindle fibres, centrioles and cilia
Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe
Last Answer : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split ... If both Assertion & Reason are false.
Description : During the final stage of cell division, the mitotic apparatus disappears, the chromosomes become attenuated, the centrioles duplicate and split, the nuclear membrane becomes reconstituted and the nucleolus reappears. This ... as: a) prophase (pron: prO-phase) b) metaphase c) anaphase d) telophase
Last Answer : ANSWER: D -- Telophase
Description : Assertion :- In higher plants, the mitosis is termed as anastral mitosis. Reason : In higher plants, mitosis takes place without spindle fibers.
Last Answer : Assertion :- In higher plants, the mitosis is termed as anastral mitosis. Reason : In higher plants, ... . D. If both Assertion & Reason are false.
Description : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During Anaphse-I each chromosome is found in bivalent form
Last Answer : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During ... . D. If both Assertion & Reason are false.
Description : What is the function of the spindle apparatus?
Last Answer : A: The spindle apparatus is responsible for separating the chromosomes during cell division.
Description : Which one of the following statements does NOT apply to bacterial reproduction? a. A fission ring apparatus is present. b. Septum formation occurs. c. A spindle apparatus is used. d. Symmetrical cell division occurs.
Last Answer : c. A spindle apparatus is used.
Description : How to Remove the Logo from Divi Navigation Header ? -Web-Development
Last Answer : STEP 1: Log in to your WP Admin panel. Navigate to Divi>Theme Options in the menu. STEP 2: Click on "Reset" to remove the logo. STEP 3: Save changes to your theme options. Now the default theme ... the "Mobile Menu" option. Step 11: Check the option "HIDE LOGO IMAGE", and click "Save & Publish".
Description : Read the assertion and reason carefully to mark the correct option in question. Assertion: Golgi apparatus remains in close association with the endop
Last Answer : Read the assertion and reason carefully to mark the correct option in question. Assertion: Golgi apparatus ... . If both Assertion & Reason are false.
Description : Why are centrioles present only in animals? -Biology
Last Answer : Explanation: ⇒ Centrioles are necessary for animal cells because they essentially pull the cell into two new cells. In plant cells rather than needing something to pull them apart the cytoplasm will spread and ... cell wall will form in the middle which will lead to the formation of two new cells.
Description : Can somebody please supply me with the scene from army of two where durring an air guitar a character says "Ladies lift your shirts!"
Last Answer : wait what? All you do is go to your partner and push “A” and he does it randomly
Description : Durring which stage a diploid cell becomes tetraploid in mitosis:-
Last Answer : Durring which stage a diploid cell becomes tetraploid in mitosis:- A. `G_(2)` B. Prophae C. Metaphase D. Anaphase
Description : Assertion `:-` Haemoglobin can not get saturated with oxygen more than `97%`. Reason `:-` With a rise in `PO_(2)`, the affinity between `O_(2)` & haem
Last Answer : Assertion `:-` Haemoglobin can not get saturated with oxygen more than `97%`. Reason `:-` With a ... False. D. If both Assertion & Reason are false.
Description : Assertion `:-` In PCT all of the essential nutrient and 70-80 percent of electrolytes and water are reabsorbed. Reason `:-` PCT is lined by simple cub
Last Answer : Assertion `:-` In PCT all of the essential nutrient and 70-80 percent of electrolytes and water are ... . D. If both Assertion & Reason are false.
Description : Assertion `:` Deficiency of vitamin `B_(12)` and folic acid can cause anaemia. Reason `:-` Vitamin `B_(12)` and folic acid are essential for maturatio
Last Answer : Assertion `:` Deficiency of vitamin `B_(12)` and folic acid can cause anaemia. Reason `:-` Vitamin ... False. D. If both Assertion & Reason are false.
Description : Assertion `:` Vitamins are essential for healthyl life. Reason `:` Vitamins regulate metabolism
Last Answer : Assertion `:` Vitamins are essential for healthyl life. Reason `:` Vitamins regulate metabolism A. If ... D. If both Assertion & Reason are false.
Description : Assertion :- Disappearance of nuclear membrane is generally essential for karyokinesis Reason :- Forward movement of chromosomes is dependent on spind
Last Answer : Assertion :- Disappearance of nuclear membrane is generally essential for karyokinesis Reason :- Forward ... If both Assertion & Reason are false.
Description : Which of the following is not a characteristic feature during mitosis in somatic cells? (a) Chromosome movement (b) Synapsis (c) Spindle fibres (d) Disappearance of nucleolus
Last Answer : (b) Synapsis
Description : Which of the following is true for nucleolus? (a) Larger nucleoli are present in dividing cells. (b) It is a membrane-bound structure. (c) It takes part in spindle formation. (d) It is a site for active ribosomal RNA synthesis.
Last Answer : (d) It is a site for active ribosomal RNA synthesis.
Description : In animal cells, the assembly of spindle microtubules starts at the centrosome. What is another name for the centrosome?
Last Answer : •During prophase, assembly of spindle microtubules begins in the centrosome, the microtubule organizing center
Description : Which of the following is true for nucleolus ? (1) Larger nucleoli are present in dividing cells. (2) It is a membrane-bound structure. (3) It takes part in spindle formation. (4) It is a site for active ribosomal RNA synthesis.
Last Answer : (4) It is a site for active ribosomal RNA synthesis.
Description : For synthesis of prostaglandins, the essential fatty acids give rise to a fatty acid containing (A) 12 carbon atoms (B) 16 carbon atoms (C) 20 carbon atoms (D) 24 carbon atoms
Last Answer : Answer : C
Description : What is the function of the centrioles?
Last Answer : A: Centrioles are cellular organelles involved in cell division and the organization of the cytoskeleton.
Last Answer : A: The centrioles are cellular organelles involved in cell division, playing a role in the formation of the spindle fibers that pull the chromosomes apart during mitosis and meiosis.
Last Answer : A: The centrioles are involved in the formation of the spindle fibers during cell division.
Description : What are the functions of the Centrioles? -Biology
Last Answer : Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell's skeletal system. They help determine the locations of the nucleus and other organelles within the cell.
Description : Role of centrioles in cell division. -Biology
Description : Where do centrioles live ?
Last Answer : The centriole is located near the nucleus of the cell.
Description : Find incorrect statement with regard to centrosome and centrioles :- (a) Centrosomes are surrounded by amorphous pericentriolar material (b) In centro
Last Answer : Find incorrect statement with regard to centrosome and centrioles :- (a) Centrosomes are surrounded by amorphous ... b C. b, c D. All are correct
Description : What stage centrioles separate?
Last Answer : Need answer
Description : What are analogies for centrioles ?
Last Answer : A Centriole is like a straw because they both are tubesthat let things get from one end to the other end. The centriole has a round look to it because it is made from nine triplets of microtubules that make a straw-like (as said above) look.
Description : Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - ... cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5
Last Answer : (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts
Description : Which of the following is NOT a membranous organelle? (A) Lysosomes (B) Peroxisomes (C) Centrioles (D) Mitochondria
Last Answer : (C) Centrioles
Description : Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent of water due to the development of internal fer
Last Answer : Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent ... D. If both Assertion and Reason are false.
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 : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet are grouped under mammals. Reason : Both of them have
Last Answer : Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet ... false D. If both Assertion and Reason are false.
Description : Assertion `:-` Mostly aquatic animals are ammonotelic. Reason `:-` Ammonia is the most toxic form and requires large amount of water for its eliminati
Last Answer : Assertion `:-` Mostly aquatic animals are ammonotelic. Reason `:-` Ammonia is the most toxic form and ... . D. If both Assertion & Reason are false.
Description : Assertion: A sanctuary is formed for the conservation of animals only. Reason: Restricted human activities are allowed in sanctuaries.
Last Answer : Assertion: A sanctuary is formed for the conservation of animals only. Reason: Restricted human ... . If both assertion and reason are false.
Description : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks polyspermy .
Last Answer : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks ... D. If both Assertion & Reason are False.
Description : Assertion: Insects contribute the maximum to the total diversity of animals. Reason: Angiosperms and insects are coevolved to perform as plant-pollina
Last Answer : Assertion: Insects contribute the maximum to the total diversity of animals. Reason: Angiosperms and insects ... and Reason are false, then mark (4).
Description : Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line system has receptor of sensory cells derived f
Last Answer : Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line ... D. If both Assertion and Reason are false.
Description : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re
Last Answer : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood ... . D. If both Assertion & Reason are false.
Description : Assertion : The mantel of pearl oyster is three - layred. Reason : Nacre- secreting cells are present just below the nacreous layer .
Last Answer : Assertion : The mantel of pearl oyster is three - layred. Reason : Nacre- secreting cells are present ... D. If both Assertion and Reason are false.
Description : Assertion (A) : Cancer cells are virtually immortal until the body in which they reside dies. Reason`(R)`: Cancer is caused by damage to genes regulat
Last Answer : Assertion (A) : Cancer cells are virtually immortal until the body in which they reside dies. Reason ... D. If both the assertion and reason are false
Description : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason : Interferons stimulate inflammation at the site
Last Answer : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason ... . If both the assertion and reason are false