Select Board & Class
write the harmful effects of using plasatic bags, on the environment. suggest alternatives to plastic bags.
i want written evs project on the topic -"It is possible to reduce river pollution by using the sewage water for irrigation" with the following points:First term1.selection of project2.objectives3.review of literature4.relevance5.proposed methodologySecond Term1.decription of method followed2.observations3.analysis4.result/conclusion5.report writing
what is biomagnification?
Solve this: Two genes A and B present on same chromosome show 30% recombination frequency, then what will be the percentage of gamete (aB) for the plant having genotype AaBb in cis arrangement : (1) 40% (2)70% (3) 20% (4) 15%
public interest litigation
Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
Dear experts
Can you help me out in choosing an investigatory project in biology class 12th ? kindly requesting u to rply
wat is the el nino effect? how does it affect biodiversity?
Explain Biochemical Oxygen Demand (BOD)???
what do u mean by phaeophytization? plz giv a detailed info
what is EL Nino effect
why are green algae not likely to be found in the deepest strata of the ocean?
identify unnecessary sources of noise pollution which can be reduced immediately without any financial loss to anybody?
1. What is organic farming? How did Ramesh Chandra Dagar practice this?
Why ozone hole is devoloped in Antarctica?
What are the effects of ozone depletion???
Spoilage of oil can be detected by which fatty acid?1) Oleic acid2) Linolenic acid3) Linoleic acid4) Erucic acid
short note on controlling vehicular air pollution : a case study of delhi
answer it fast plzz///
Kyoto Protocol was endorsed at
1. Cop-6
2. Cop-4
3. Cop-3
4. Cop-5
Please answer with reason
short note on ozone depletion in the stratosphere?
What measures, as an individual, you would take to reduce environmental pollution?
What is the objective of Environment Protection Act , 1986 ?
full form of JFM
what is BOD? (expansion)
defination of 1.Soil Erosion and 2.desertification.
working of electrostatic precipitator
deforestration decreases with enhanced awareness of forest conservation
what is phaeophitisation?
how to prepare for AIPMT in these 40 days after boards? I am thorough with class 12 cbse pattern syllabus but what about class 11 syllabus and class 12 entrance syllabus?very confused plz?
What is the difference between reforestation and deforestation??? (atleast 3 points)
what do u mean by smokestacks and smelters?
what is meant by evencs??
if there is lot of pollution in the city....and not in the artic region.....then why is there an ozone hole forming above the arctic region..(where there is no pollution) and not in the region of cities?
Why fertilizers and manure are added in the soil?
plz define me the exat definition of greenhouse effect nd global warming?
what are EcoSan toilets
HOW WATER LOGGING AND SOIL SALINITY ARE RELATED, ALSO DEFINE BOTH OF THEM?
hey r u from rgukt
'Evencs the only solution for treatment of e-wastes'. What does 'evencs' mean in this sentence?
What are the various constituents of domestic sewage ? Discuss the effect of sewage discharge on water bodies.
what is biomagnification?please explain .
what is the principle of flectrostatic precipitator,scrubber and organic farming
What is polyblend? point out its raw material. How will it be advantageous?
describe the participation of people in the conservation of forests in india by taking bishnoi community incident and chipko movement as examples. add a note on joint forest management
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)
Syllabus
write the harmful effects of using plasatic bags, on the environment. suggest alternatives to plastic bags.
155. Which one is incorrect with respect to gel electrophoresis :-
(1) Wells for DNA sample loading are made at anode
(2) Largest bands of DNA lie far away from anode
(3) Smallest bands of DNA lie near to anode
(4) Both (1) and (3)
i want written evs project on the topic -"It is possible to reduce river pollution by using the sewage water for irrigation" with the following points:First term1.selection of project2.objectives3.review of literature4.relevance5.proposed methodologySecond Term1.decription of method followed2.observations3.analysis4.result/conclusion5.report writing
(1) 30
(2) 15
(3) 45
(4) 60
what is biomagnification?
Solve this:
Two genes A and B present on same chromosome show 30% recombination frequency, then what will be the percentage of gamete (aB) for the plant having genotype AaBb in cis arrangement :
(1) 40% (2)70%
(3) 20% (4) 15%
public interest litigation
rnQ.18. Select an incorrect statement w.r.t. metaphase
(1) Spindle fibres are attached to small disc shaped structures at the surface ofcentromeres called kinetochores
(2) The plane of alignment of the homologous pair of chromosomes at metaphase is referred to as the metaphasic plate
(3) Chromosome appears to be made up of two sister chromatids
(4) The size of chromosomes can be studied inthis phase
Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
Q.123. A holandric gene is known for hypertrichosis (long hairs on ears). When a man with hairy ears marries a normal woman, what percentage of their sons would be expected to have hairy ears :-
(1) 100 %
(2) 0 %
(3) 50 %
(4) 25 %
Dear experts
Can you help me out in choosing an investigatory project in biology class 12th ? kindly requesting u to rply
(Atleast one page/2sides)
Plz can u tell me how can u start writing this ans in a proper step by step way as this ans should be big...
wat is the el nino effect? how does it affect biodiversity?
16. When a plant cell is placed in a hypotonic solution, which of the following will not apply?
(1) Wall pressure is decreased (2) The cell become turgid (3) Suction pressure of the cell sap will decrease
(4) Water potential of the cell sap will increase
Explain Biochemical Oxygen Demand (BOD)???
(1) 12 atm (2) 72 atm (3) - 12 atm (4) 1.4 atm.
what do u mean by phaeophytization? plz giv a detailed info
(1) OP & TP increase & its DPD increase
(2) OP & DPD increase & TP decrease
(3) TP & DPD decrease & OP increase
(4) OP & DPD decrease & TP increase
what is EL Nino effect
Q. How many hormones from the below list interact with intracellular receptors and regulate chromosome function and gene expression. GH, Oxytocin, ADH, ANF, Aldosterone, Cortisol, Thyroxin, Epinephrine, Estradiol, GnRH, Progesterone
(1) Four (2) Five (3) Six (4) Seven
why are green algae not likely to be found in the deepest strata of the ocean?
identify unnecessary sources of noise pollution which can be reduced immediately without any financial loss to anybody?
1. What is organic farming? How did Ramesh Chandra Dagar practice this?
Q.15. Which of the following is correct regarding structure of section of cilia and flagella:-
96) Which is not a characteristic of imbibition?
(1) It does, not depend upon the affinity between inbibant and imbibate
(2) Without making any solution
(3)It is reversible phenomenon
(4) Heat is generated
Why ozone hole is devoloped in Antarctica?
Q.9. The biochemical objective of PS I is to
(1) oxidise NADPH
(2) hydrolyse ATP
(3) phosphorylate ADP
(4) reduce
What are the effects of ozone depletion???
Spoilage of oil can be detected by which fatty acid?1) Oleic acid2) Linolenic acid3) Linoleic acid4) Erucic acid
Kindly answer sir/mam.short note on controlling vehicular air pollution : a case study of delhi
answer it fast plzz///
Kyoto Protocol was endorsed at
1. Cop-6
2. Cop-4
3. Cop-3
4. Cop-5
Please answer with reason
Q.19. All are the essential stages that take place during meiosis, except
(1) Two successive divisions without any DNA replication occuring between them
(2) Formation of chiasmata and crossing over
(3) Segregation of homologous chromosomes
(4) Number of chromosomes in daughter cells after meiosis II is reduced to half but the amount of DNA remains the same
(1) More than turgor pressure
(2) Less than turgor pressure
(3) Equal to turgor pressure
(4) Zero
short note on ozone depletion in the stratosphere?
Q.21. If egg of an organism has 10 Pg of DNA in its nucleus. How much DNA would a diploid cell of
same organism have in phase of meiosis?
(1) 10 Pg
(2) 5 Pg
(3) 20 Pg
(4) 40 Pg
What measures, as an individual, you would take to reduce environmental pollution?
What is the objective of Environment Protection Act , 1986 ?
Q.121. Which of the following process will be affected by the absence of enterokinase ?
(1) Starch Maltose
(2) Proteoses Dipeptide
(3) Maltose Glucose
(4) Lipid Fatty acid & glycerol
full form of JFM
what is BOD? (expansion)
Q.144. During creation of proton gradient in chloroplast, protons are removed from the :-
(1) Stroma by ATP synthase
(2) Stroma by NADP reductase enzyme
(3) Thylakoid lumen by NADP reductase enzyme
(4) Thylakoid Lumen by cytochrome b & f
defination of 1.Soil Erosion and 2.desertification.
working of electrostatic precipitator
deforestration decreases with enhanced awareness of forest conservation
what is phaeophitisation?
how to prepare for AIPMT in these 40 days after boards? I am thorough with class 12 cbse pattern syllabus but what about class 11 syllabus and class 12 entrance syllabus?very confused plz?
What is the difference between reforestation and deforestation??? (atleast 3 points)
what do u mean by smokestacks and smelters?
Q.171. The given nervous system figure illustrate the axonal membrane and propagation of nerve impulse what will be the direction of propagation of nerve impulse:-
(1) X Y
(2) Y X
(3) Z Y
(4) Y Z
what is meant by evencs??
37.. You are given three cells, a root hair, a cell of the inner cortical layer and a cell of the mesophyll arrange them in ascending order of DPD.
(1) Root hair < Cortical cell < Mesophyll (2) Cortical cell < Mesophyll < Root hair.
(3) Mesophyll < Root hair < Cortical cell (4) Root hair < Mesophyll < Cortical cell
if there is lot of pollution in the city....and not in the artic region.....then why is there an ozone hole forming above the arctic region..(where there is no pollution) and not in the region of cities?
Why fertilizers and manure are added in the soil?
plz define me the exat definition of greenhouse effect nd global warming?
what are EcoSan toilets
HOW WATER LOGGING AND SOIL SALINITY ARE RELATED, ALSO DEFINE BOTH OF THEM?
4. Which of the four most abundant elements in most plants (C,H,O and N), does a terrestrial green plant procure mainly through its roots from the soil ?
(1) H and O (2) H and N (3) C and O (4) O and N.
hey r u from rgukt
42. If the given solution is of 25% concentration; then what cannot be presented for this
(1) OP (2) DPD (3) Solute potential (4) TP
'Evencs the only solution for treatment of e-wastes'. What does 'evencs' mean in this sentence?
What are the various constituents of domestic sewage ? Discuss the effect of sewage discharge on water bodies.
Q.18. The colour of light not utilized during photosynthesis is
(1) Violet
(2) Green
(3) Red
(4) Blue
what is biomagnification?please explain .
what is the principle of flectrostatic precipitator,scrubber and organic farming
Q. How many meiotic divisions are required to produce 250 pollen grains in an angiosperm?
(1) 60 (2) 63 (3) 626 (4) 312
What is polyblend? point out its raw material. How will it be advantageous?
Q.112. Study the pedigree chart given below :-
What does it show -
(1) Inheritance of a recessive sex-linked disease like haemophilia
(2) Inheritance of a sex-linked inboron error of metabolism like phenyl ketoneuria.
(3) Inheritance of a condition like cystic fibrosis as an autosomal recessive trait
(4) The pedigree chart is Y-linked Inheritance
describe the participation of people in the conservation of forests in india by taking bishnoi community incident and chipko movement as examples. add a note on joint forest management
(1) Mollusca - Normally oviparous and development through a trochophore or veliger larva
(2) Arthropoda- Body divided into head thorax and abdomen and respiration by tracheae
(3) Chordata - Notochord at some stage and separate anal and urinary opening to the outside
(4) Echinodermata - Pentamerous radial symmetry and mostly internal fertilization