Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

6901.

Question : The central dogma of protein synthesis is :

Answer»

DNA RARR RNA harr DNA`
`PROTEIN harr DNA rarr RNA
`RNA rarr DNA rarr protein
`DNA harrr RNA rarr protein`

ANSWER :D
6902.

Question : The absorption spectrum of chlorophyll

Answer»

shows that some colours of light are absorbed more than the OTHERS
approximates the action SPECTRUM of PHOTOSYNTHESIS
EXPLAINS why chlorophyll is a green pigment.
has all the above properties.

Answer :B
6903.

Question : The central dogma of protein synthesis in teminism is

Answer»

RNA RARR DNA rarr MRNA rarr Protein
DNA rarr gRNA rarrmRNA rarr Protein
DNA rarr DNA rarr mRNArarr Protein
mRNArarr gRNA rarr DNA rarr Protein

Answer :A
6904.

Question : The above shown pictures are of a type of birds seen in the island near South America. a. Identify the island. b. What is the significance of these birds in evolution?

Answer»

Solution :a. Galapagos islands. This is a chain of 14 islands in the PACIFIC ocean situated NEARLY 960 km away from WEST coast of South AMERICA.
b. They are the Darwin finches. This is a classical example for adaptive radiation forwarded by Charles Darwin.
6905.

Question : The central core of axis, which includes the vascular system is

Answer»

annulus
stomium
stele
prothallus

Answer :B
6906.

Question : the above reaction catalyzed by which class of enzymetic reaction ?

Answer»

LIGASES
TRANSFERASES
LYASES
Hydrolases

ANSWER :C
6907.

Question : The cellular junctions that join the epithelium cells to the basal lamina are

Answer»

Desmosomes
Hemidesmosomes
Interdigitations
Tight Junctions

Answer :B
6908.

Question : The above picture represents two different process carried out by the plant breeders. Name the process A and B and define them.

Answer»

SOLUTION :A. Emasculation: PROCESS of removal of ANTHERS before anthesis
B. Bagging: Covering of stigma of the FLOWER with a BAG to protect it against pollination.
6909.

Question : The central atom of the porphyrin like ring of chlorophyll is:

Answer»

Iron
Magnesium
Manganese
Molybdenum

ANSWER :B
6910.

Question : The above graph show Species-Area relationship. Write the equation of the curvea and explain.

Answer»

Solution :On a log scale, the relationship becomes linear (Straight line) and is described equation
log S log C+Z log A
where
S = speices Richness
Z = slope of the line (regression cofficient )
A area
C= y- intercept
Ecologists have FOUND out that the value of Z line ranges between 0.1 and 0.2 IRRESPECTIVE of the taxonomic group or the REGIO
this analysis in very large area like a CONTINENT, the Z value ranges between 0.6 and 1.2. The Z value for frugivorous birds and mammals in the tropical forest is found to be 1.15
6911.

Question : The central atom in the prophagon like ring of chlorophyll is:

Answer»

Iron
Maganese
Magnesium
Molybdenum

Answer :C
6912.

Question :The above lac operon is not working due to some reason. State the reasonand redraw the figure, showing suitable changes

Answer»

Solution :
The lac OPERON is not working because the site of BINDING of REPRESSOR protein to the operator GENE is different.
6913.

Question : The cells which secrete male sex hormone testosterone are

Answer»

isthmus
crypt cells
Lieberkiihn
Leydig's cells

Answer :D
6914.

Question : The above floral diagram shows'the floral formula

Answer»




ANSWER :B
6915.

Question : The cells which line the spongocoel and the canals are called

Answer»

choanocytes
COLLAR CELLS
Both (a) and (B)
NONE of these

Answer :C
6916.

Question : The ABO blood grouping in human beings is an example for: (i)Dominance(ii)Incomplete dominance (iii)Co-dominance(iv)Muliple alleles

Answer»

(i) and (II) only
(ii), (III) and (IV)
(i),(iii) and (iv)
(ii) and (iv) only

Answer :D
6917.

Question : The cells which do not respire:

Answer»

EPIDERMAL cells
Fibroblast
Cortical cells
Erythrocyte

Answer :D
6918.

Question : The ABO blood grouping in human beings is an example for i. Dominanceii . Incomplete dominanceiii. Co-dominance iv. Multiple alleles

Answer»

i and II only
ii, III and iv
i, ii and iv
iii and is only

Answer :C
6919.

Question : The abiogenesis occurred about how many billion years ago?

Answer»

1.2 billion
2.5 billion
1.5 billion
3.5 billion

Answer :D
6920.

Question : The cells that actually release the antibodies are

Answer»

HELPER T-cells
Cytotoxic T-cells
Plasma cells
Memory cells

Answer :C
6921.

Question : The Abingdon tortoise in Galapagos island became extinct with in decade after goats were introduced on the island is the example of :

Answer»

COMPETITIVE release
Resource partitioning
Interference competition
Competitive exclusion

Answer :D
6922.

Question : The cells, those aggregate to form internal buds during asexual reproduction in sponges are :-

Answer»

Archaeocytes
Pinacocytes
Interstitial cells
Choanocytes

Answer :A
6923.

Question : The Abingdon tortoise in Galapagos islands become extinct due to introduction of ………..

Answer»

Goat
Sheep
Dog
Cow

Answer :A
6924.

Question : The cells that are pushed to the periphery become

Answer»

epidermis
cortex
vascular bundle
root CAP cells

Answer :A
6925.

Question : The ability of the host to fight against infectious disease is decided by…………...

Answer»

ENDOCRINE SYSTEM
IMMUNE system
Nervous system
Hormonal system

SOLUTION :Immune system
6926.

Question : The cells on which hormones act are called.

Answer»


ANSWER :TARGET CELL
6927.

Question : The character of starfish to break away a part of its body is

Answer»

AUTOGAMY
Neoteny
Autophagy
Autotomy

Answer :D
6928.

Question : The cells of the follicle synonesis

Answer»

oestrogen
progesterone
Both (a) and (B)
NONE of these

Answer :A
6929.

Question : The ability of the venus fly trap to capture insects is due to :

Answer»

specialized 'muscle-like' cells
chemical STIMULATION by the prey
a passive process requiring no SPECIAL ABILITY on the part of the plant
rapid TURGOR pressure changes

Answer :D
6930.

Question : The cells of Rauber are :

Answer»

SECRETORY cells is of endomerium in uterus
Inner cell MASS of blastocoel
Cells of TROPHOBLAST in CONTACT with inner cell mass of blastocyt
Sertoli cells

Answer :C
6931.

Question : The ability of plant cell to give rise to an entire new plant is called

Answer»

SYMMETRY
Differentiation
TOTIPOTENCY
DEDIFFERENTIATION

SOLUTION :Totipotency
6932.

Question : The cells of pavement epithelium when viewed from the surface appearin shape

Answer»

POLYGONAL
Cuboidal
Columnar
Ovoid

Answer :A
6933.

Question : The A/a and B/b genes are autosomal and 20 map unit apart. A pure individual showing the 'A' and 'b' phenotypes is crossed with a pure individual with the 'a' and 'B' phenotypes. The offsprings produced by this cross, will produce gametes. What percentage of gametes will be of genotype 'ab' :-

Answer»

0.4
0.5
0.25
0.1

Answer :D
6934.

Question : The cells in the human body invaded by HIV are

Answer»

B-cells
Macrophages
Erythrocytes
Helper T-cells

Answer :B
6935.

Question : The abdomen of cockroach is divided into

Answer»

10 segments
12 segments
6 segments
8 segments

Answer :A
6936.

Question : The A and B genes are 10 cM apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?

Answer»

25 AB, 25 ab, 25 Ab, 25 aB
10 AB , 10 ab
45 AB , 45 ab
45 AB, 45 ab, 5 Ab , 5aB

Answer :B
6937.

Question : The cells arranged in multiple layers between epidermis and pericycle of dicot stem and root constitute

Answer»

Cortex
Only hypodermis
Only endodermis
Pith

Answer :A
6938.

Question : The 5C-intermediate of Krebs cycle that serves as substrate for transamination is

Answer»

`alpha`-Ketoglutaric ACID
SUCCINYL Co. A
Oxalo ACETIC acid
Oxalo succinic acid

ANSWER :A
6939.

Question : The cellsatthechalazal andendof theembryosacare called________.

Answer»

SOLUTION :ANTIPODALS
6940.

Question : The 3^'-5^' phosphodiester linkages inside a polynucleotide chain serve to join

Answer»

one DNA STRAND with ANOTHER DNA strand
One nucleoside with another nucleoside
One nucleotide with another nucleotide
one nitrogenous base with PENTOSE sugar

Answer :C
6941.

Question : The cellsadjoiningtheeggare called________.

Answer»

SOLUTION : SYNERGIDS
6942.

Question : The 3rd, 6th and 11th cranial nerves are respectively

Answer»

oculomotor, ABDUCENS and SPINAL ACCESSORY
oculomotor, TRIGEMINAL and spinal accessory
optic, facial and spinal accessory
TROCHLEAR, abducens and vagus.

Answer :A
6943.

Question : The 24 hour (diurnal) rhythm of our body such as the sleep -wake cycle is regulated by the hormone

Answer»

Calcitonin
Prolactin
Adrenaline
Melatonin

Answer :D
6944.

Question : The cell wall of algae is chemically composed of

Answer»

hemicellulose, PECTINS and PROTEINS
cellulose, galactans and mannans
pectin, cellulose and proteins
chitin

Answer :B
6945.

Question : The '' 2n '' condition of Carica papaya is ...........

Answer»


ANSWER :36
6946.

Question : The …………… of anther may have polyploid cells.

Answer»

microspore
tapetum
epidermis
nucellus

Answer :A
6947.

Question : The cell organelle that divides the intracellular space into two distinct compartments is

Answer»

GOLGI body
Endoplasmic reticulum
Nuclear membrane
Mitochondria

Answer :B
6948.

Question : The 1 : 2 : 1 ratio with the pink flower in the F_2 generation indicate the phenomenon of :

Answer»

DOMINANCE
CODOMINANCE
INCOMPLETE dominance
segregation

Answer :C
6949.

Question : The cell-mediated immunity inside the human body is carried out by:

Answer»

T-lymphocytes
B-lymphocytes
Thrombocytes
Erythrocytes

Answer :A
6950.

Question : The 10% law is associated with an important function of an ecosystem is

Answer»

Productivity
Nutrient cycling
Decreases the CALORIFIC VALUE in SUCCESSIVE TROPHIC levels.
Increases the calorific value in successive trophic levels.

Answer :C