NEET Test Series-2021 to 2022/NEET Biology MCQS Mock Test Paper 45 Sample Test,Sample questions

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Question: 
 Association of histones H1 with nucleosome shows

1. the occurrence of transcription

2.the occurrence of replication

3.exposed DNA double helix

4.the condensation of DNA into chromatin fibre

Question: 
 DNA replication is

1.conservative

2.conservative and discontinuous

3.semi-conservative and discontinuous

4. semi-conservative and semi-discontinuous

Question: 
 Find the incorrect statement

1.Agar-agar is produced from Gracilaria

2.Chlorella is used in space food

3.Mannitol is a food reserve of Rhodophyceae

4.Algin is produced by algae

Question: 
 Formation of a chemical bond results in

1.Increase in energy

2. Decrease in energy

3.Both

4.None of the above

Question: 
 Glenoid cavity articulates

1.Clavicle with acromion

2.Clavicle with scapula

3.Scapula with acromion

4. Humerus with scapula

Question: 
 Small discrete molecules are present in which of the substances?

1.Copper

2. CO

3.Dry ice

4.Graphite

Question: 
 Termination of replication is triggered by

1. DNA polymerase

2.Helicase

3. SSB

4.Tus protein

Question: 
 The joint between 1st and 2nd cervical vertebrae

1.Gliding joint

2.Saddle joint

3. Pivot joint

4.Hinge joint

Question: 
 The joint in our elbow is an example of

1.hinge joint

2.ball and socket joint

3.pivot joint

4.gliding joint

Question: 
 Which of the following enzymes separates the two strands of DNA during replication?

1. Gyrase

2. Topoisomerase

3.Helicase

4. DNA polymerase

Question: 
 Which of the following has non-flagellated isogamous gametes?

1.Spirogyra

2. Chlamydomonas

3.Volvox

4.Fucus

Question: 
 Which of the following has the weakest bond?

1. Ice

2. Diamond

3.KCl

4. Neon

Question: 
 Which of the following is used in DNA replication studies?

1.Neurospora crassa

2.Drosophila melanogaster

3. Escherichia coli

4.Pneumococcus

Question: 
 Which of the following joints does not allow any movement?

1. Synovial joint

2.Fibrous joint

3.Ball and Socket joint

4.Cartilaginous joint

Question: 
 Which one of the following is a colonial alga?

1.Ulothrix

2.Spirogyra

3. Volvox

4.Chlorella

Question: 
DNA polymerase synthesizes

1.DNA in 5’-3’ direction

2. DNA in 3’-5’ direction

3. mRNA in 3’-5’ direction

4.mRNA in 5’-3’ direction

Question: 
During replication, Okazaki fragments elongate

1.leading strand towards the replication fork

2. lagging strand towards the replication fork

3. leading strand away from the replication fork

4.lagging strand away from the replication fork

Question: 
Find the correct pair

1. Gliding joint – between carpals

2.Cartilaginous joint – between frontal and parietal

3.Hinge joint – between humerus and pectoral girdle

4.Pivot joint – between third and fourth cervical vertebrae

Question: 
Find the correctly matched pair

1.Fibrous joint — between phalanges

2.Cartilaginous joint — skull bones

3. Gliding joint — between zygapophyses of the successive vertebrae

4.Hinge joint — between vertebrae

Question: 
Humans have ________ joint between sternum and ribs

1. gliding

2.angular

3.cartilaginous

4.fibrous

Question: 
In a crystal, covalent molecules are held together by

1.Dipole-dipole attraction

2. Hydrogen bonds

3.Van der Waals attraction

4. Electrostatic attraction

Question: 
The Atoms of solid Ar are held together by

1. Van der Waals forces

2.Hydrogen bonds

3.Ionic bonds

4.Hydrophobic forces

Question: 
Mannitol is a reserved food found in

1.Gracillaria

2.Porphyra

3.Chara

4. Fucus

Question: 
Metallic bonds do not have

1.Highly directed bonds

2. Mobile valence electrons

3. Delocalised electrons

4.Overlapping valence orbitals

Question: 
Particles in an ionic crystals are held together by

1.Nuclear forces

2.Electrons

3.Covalent bonds

4.Electrostatic forces

Question: 
Ribs and sternum are connected by

1.Areolar tissue

2. Hyaline cartilage

3.White fibrous cartilage

4. Bony matter

Question: 
The 3’ – 5’ phosphodiester linkage joins

1.two DNA strands

2.two nucleotides

3.a nitrogenous base with pentose sugar

4. two nucleosides

Question: 
The fragments of DNA are joined together by which of the following enzymes?

1. Endonuclease

2.DNA polymerase

3. Primase

4. Ligase

Question: 
The joint between atlas and axis is

1.Saddle joint

2.Angular joint

3.Pivot joint

4. Cartilaginous joint

Question: 
The type of joint between the skull bones is

1. Fibrous

2.Cartilaginous

3.Synovial

4.Hinge

Question: 
Which of the compounds shows the highest lattice energy?

1.CsF

2. KF

3. RbF

4. NaF

Question: 
Which of the following has both covalent and ionic bonds?

1. NaOH

2. KCl

3.CH4

4.SO2

Question: 
Which of the following helps in opening of DNA double helix in front of replication fork?

1.topoisomerase

2.DNA polymerase-I

3. DNA gyrase

4.DNA ligase

Question: 
Which of the following is the weakest bond?

1.Ionic bonds

2.Metallic bonds

3.Covalent bonds

4.Van der Waals forces

Question: 
Which of the following shows zygotic meiosis?

1. Chlamydomonas

2. Marchantia

3. Funaria

4.Fucus

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