NEET Test 184

Result

NEET Test 184

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

The cutting of DNA at specific locations became possible with the discovery of:

A
Restriction enzymes

B
probes

C
Selectable markets

D
Ligases

Solution

Genetic engineering is possible because of special enzymes that cut DNA. These enzymes are called restriction enzymes or restriction endonucleases. Restriction enzymes are proteins produced by bacteria to prevent or restrict invasion by foreign DNA. They act as DNA scissors, cutting the foreign DNA into pieces so that it cannot function. These enzymes are routinely used for DNA modification in laboratories and are a vital tool in molecular cloning.
Question 2
4 / -1

Prokaryotic flagella possess:

A
Helically arranged protein molecule.

B
Protein membrane enclosed fibre.

C
Unit membrane enclosed fibre.

D
Microtubular 9 + 2 membrane enclosed structure.

Solution

Prokaryotic (bacterial) flagella is 3 to 12 μm long, 0.01 to 0.02 μm thick hollow unistranded and made of 3 to 8 spiral or helically arranged rows of protein, flagellin.
Question 3
4 / -1

Select the correct pairing.

A
Heart wall- Involuntary unstriated muscle

B
Biceps of the upper arm - Voluntary unstriated muscle

C
Abdominal wall - Involuntary striated muscle

D
Iris - Involuntary unstriated muscle

Solution

Smooth muscles are plain, non-striated, involuntary, or unstriped muscles due to the absence of striations. These muscles occur in the walls of hollow internal organs, in capsules of lymph glands, spleen, etc., in iris and ciliary body of eyes, skin dermis, penis, and other accessory genitalia, etc.
Question 4
4 / -1

A stone dropped from the top of a tower reaches ground in 4 s. Height of the tower is (g = 10 m/s²)

A
20 m

B
40 m

C
80 m

D
160 m

Solution
Question 5
4 / -1

Which of the following pairs contains only aromatic amino acids?

A
Glutamate and aspartate

B
Lysine and arginine

C
Tyrosine and phenylalanine

D
Tryptophan and alanine

Solution

Aromatic amino acids, like other proteinogenic amino acids, are the building blocks of proteins and include phenylalanine, tryptophan, and tyrosine. All plants and micro-organisms synthesize their own aromatic amino acids to make proteins

Tyrosine is the only one of the aromatic amino acids with an ionizable side chain. Tyrosine is one of three hydroxyl-containing amino acids
Question 6
4 / -1

A point mass m is suspended at the end of a massless wire of length L and cross-section A. If Y is Young's modulus for the wire, the frequency of oscillations for the SHM along the vertical line is-

A

B

C

D

Solution
Question 7
4 / -1

Suspended particles is removed by which of the following processes of sewage treatment?

A
Primary treatment

B
Secondary treatment

C
Tertiary treatment

D
Chlorination
Solution
Suspended particles is removed by primary treatment.

Primary Treatment:
- All the solid particulate matter are removed by primary treatment.
- Floating debris is removed by sequential filtration.
- The grit (soil and small pebbles) are removed by sedimentation.
- The solids settle as primary sludge and the supernatant as effluent.
- The effluent moves from primary settling tank to large aeration tanks for secondary treatment.
Question 8
4 / -1

The pathogen Epidermophyton responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of:

A
Wuchereria, a roundworm

B
Entamoeba, a protozoan

C
Mucor, a mould

D
Taenia, a tapeworm

Solution

Epidermophyton is a genus of fungi. This fungi causes ringworm infections. This belongs to Ascomycetes. This is known to cause infections of skin and nails. Mucor is a common mould. It is filamentous fungi found on decaying fruits and vegetables. Thus both belong to same kingdom i.e. Kingdom Fungi.
Question 9
4 / -1

An ideal gas has pressure ′p′, volume ′v′ and absolute temperature ′T′. It ′m′ is the mass of each molecule and ′K′ is the Boltzmann constant, the density of the gas is

A

B

C

D

Solution
Question 10
4 / -1

A greenish yellow gas is obtained by heating potassium dichromate with conc. hydrochloric acid. Which of the following options is wrong about the gas liberated here?

A
It is chlorine gas.

B
This gas turns blue litmus paper red and then bleaches it.

C
It is a strong bleaching agent.

D
It turns moist starch iodide paper blue black.

Solution

To test for chlorine, use damp blue litmus paper. The blue colour will turn red and then to white. Chlorine gas reacts with water to produce an acidic solution which is also an effective bleach. This explains how the test for chlorine works. The acidic solution formed on the damp litmus paper turns the indicator red. Then the bleach turns the red colour to white.