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Recent questions tagged biology
Questions
Heat shock proteins are also known to act as
neet
ch11
difficult
class12
biotechnology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
All of the following compounds are capable of forming hydrogen bonds with water except
aipmt
ch12
medium
class12
biotechnology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Undifferentiated mass of of parenchyma cells derived from plant tissues or explants is called
neet
ch12
easy
class12
biotechnology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
The technique used by scientists, Guha and Maheswari to culture haploid plantlets was experimented on which plant species ?
aipmt
ch12
medium
class12
biotechnology
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Which plant tissue culture technique is used to generate haploid plantlets ?
neet
ch12
medium
class12
biotechnology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
6-benzylaminopurine (BAP) belongs to which class of plant growth regulators or hormones ?
neet
ch15
easy
class11
plant physiology
biology
botany
asked
Apr 3, 2014
by
pady_1
1
answer
MS, B5, N6, Nitsch and Whites media are example of
neet
ch12
difficult
class12
biotechnology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
The culture of unfertilized ovary that develops into a gynogenic plants refer to
neet
ch12
medium
class12
biotechnology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
In micropropagation, the term hardening refers to
neet
ch12
easy
class12
biotechnology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Indole-3-acetic acid (IAA) belongs to which class of plant growth regulators or hormones ?
aipmt
ch15
easy
class11
plant physiology
biology
asked
Apr 3, 2014
by
pady_1
0
answers
During protoplast isolation, after naked protoplast is released in pectinase, cellulase enzyme mixture, it is fused by which substance that gives low toxicity to the cells ?
neet
ch12
easy
class12
biotechnology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
During in-vitro micropropagation, the favorable condition for shoot multiplication would require which growth regulators ?
aipmt
ch15
easy
class11
plant physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
In eukaryotes, which is the initiating amino acid ?
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
1
answer
In prokaryotic ribosome, one of the binding sites for tRNA is P site which is responsible for ?
neet
ch6
easy
class12
genetics and evolution
biology
botany
asked
Apr 3, 2014
by
pady_1
1
answer
Eukaryotic ribosome has a sedimentation coefficient of 80S with subunits of _______.
aipmt
ch8
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
The attachment of an amino acid to a tRNA is catalyzed by which enzyme ?
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Most amino acids in proteins are specified by more than one codon. Therefore, genetic codon is said to be
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Which amino acids are represented by a single codon ?
neet
ch6
medium
class12
genetics and evolution
biology
botany
asked
Apr 3, 2014
by
pady_1
1
answer
During translation, the sequence of an mRNA molecule is read by _____________.
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Each codon is recognized by a triplet of bases, called an anticodon which is present in _____.
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Which of these are termination or stop codons ?
aipmt
ch6
easy
class12
genetics and evolution
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Which enzyme is able to degrade cellulose that are absent in mammals but are produced by some bacteria, fungi and protozoa ?
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Which genetic disease is caused by an inability to convert galactose to glucose ?
aipmt
ch9
medium
class11
cell structure and function
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
Sucrose is (a) non reducing sugar and (b) disaccharide.
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
In glycolysis, glucose is phosphorylated by ATP to form glucose 6-phosphate and ADP. This reaction is catalyzed by which enzyme ?
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Bacteria and yeasts store glucose as polysaccharide called
neet
ch2
easy
class11
diversity in living world
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Starch is the mixture of two polysaccharide forms called
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Which bond is formed between the anomeric carbon of the sugar and a nitrogen atom of the base of an ATP molecule ?
aipmt
ch9
medium
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
D-glucose and D-galactose differ only in their configuration at C-4, thus called
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
which of the photosynthetic reactions use the $NADPH$ and $ATP$ to synthesize carbohydrate from $CO_2$ and $H_2O$ ?
neet
ch13
easy
class11
plant physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Fluid mosaic model of biological membranes was proposed by
aipmt
ch8
medium
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Which bond between the carbon and nitrogen exhibits partial double bond character ?
aipmt
ch9
medium
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Which of the oxygen-binding protein stores the oxygen in the muscles ?
aipmt
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Disorders like porphyrias occur due to
neet
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Hemes and chlorophylls are both members of the family of pigments called
neet
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Increase in the amount of ammonia in the blood leads to
neet
ch19
easy
class11
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
In fireflies, the generation of a light flash requires activation of luciferin by an enzymatic reaction involving pyrophosphate cleavage of which molecule to form luciferyl adenylate ?
aipmt
ch12
difficult
class12
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Flavoproteins in cryptochromes and photolyases also serve as
aipmt
ch9
medium
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
NAD and NADP are bound to dehydrogenases in a widely conserved structural motif called the
aipmt
ch9
difficult
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
If equilibrium constant K'eq of a given chemical reaction is 1.0, the standard free energy change G' o of that reaction is
aipmt
ch9
medium
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
0
answers
The free-energy change G, a spontaneously reacting system is always
neet
ch9
easy
class11
cell structure and function
biology
asked
Apr 3, 2014
by
pady_1
1
answer
TH cells generally recognize antigen combined with which class of MHC molecules ?
neet
ch18
difficult
class12
human-physiology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
Which primary lymphoid organs are the maturation site for lymphocytes ?
neet
ch18
easy
class11
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
The immunologically active regions on a complex antigen that actually bind to B-cell or T-cell receptors are known as
aipmt
ch18
easy
class12
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
0
answers
Langerhans cells and myeloid cells are which type of cells ?
neet
ch18
difficult
class11
human-physiology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
Movement of circulating neutrophils into tissues is known as
neet
ch18
medium
class11
human-physiology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
Which of the granulocytic cells have bilobed nucleus ?
neet
ch18
easy
class11
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
Which of the granulocytic cells cytoplasm stains with the basic dye methylene blue ?
neet
ch18
easy
class11
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
All blood cells arise from which type of cells ?
neet
ch18
medium
class11
human-physiology
biology
zoology
asked
Apr 3, 2014
by
pady_1
1
answer
The maturation site for T-lymphocytes is
neet
ch18
medium
class11
human-physiology
biology
asked
Apr 3, 2014
by
pady_1
1
answer
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