R4RIN – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 13

If the plasmid and the foreign DNA are cut by the same restriction endonuclease; recombinant DNA can be formed by joining both by

1. Polymerase III
2. EcoRI
3. Ligase
4. Taq polymerase

✅ Correct Answer: 3

Find the incorrect statement about plasmids

1. they are circular
2. they replicate independently
3. they are transferrable
4. they are single stranded

✅ Correct Answer: 4

The DNA molecule used for integrating foreign gene for cloning is called

1. vector
2. carrier
3. template
4. transformer

✅ Correct Answer: 1

The Ti plasmid is found in

1. Agrobacterium
2. Yeast as a 2mm plasmid
3. Rhizobium of the roots of leguminous plants
4. Azotobacter

✅ Correct Answer: 1

Replication of plasmid DNA other than initiation is controlled by

1. bacterial gene
2. mitochondrial gene
3. plasmid DNA
4. none of these

✅ Correct Answer: 1

Antibiotics are used in genetic engineering. They are useful

1. to keep culture free of microbial infections
2. to select healthy vectors
3. to identify replication start sites
4. as selectable markers

✅ Correct Answer: 4

A single-stranded; radiolabelled molecule of nucleic acids is called

1. plasmid
2. vector
3. probe
4. selectable marker

✅ Correct Answer: 3

A vector that can clone only a small DNA fragment is

1. cosmid
2. plasmid
3. Yeast artificial chromosome
4. Bacterial artificial chromosome

✅ Correct Answer: 2

Find the correct statement

1. Areolar tissue is a loose connective tissue
2. Tendon is a specialized connective tissue
3. Cartilage is a loose connective tissue
4. Adipose tissue is a dense connective tissue

✅ Correct Answer: 1

In comparison to human erythrocytes; frog’s erythrocytes are

1. smaller and fewer
2. nucleated and without haemoglobin
3. enucleated but with haemoglobin
4. nucleated and with haemoglobin

✅ Correct Answer: 4

Tip of the nose and external ears have

1. areolar tissue
2. ligament
3. cartilage
4. bone

✅ Correct Answer: 3

Mast cells contain

1. heparin and histamine
2. heparin and calcitonin
3. serotonin and melanin
4. vasopressin and relaxin

✅ Correct Answer: 1

The largest extracellular material present in the

1. Stratified epithelium
2. Striated muscle
3. Myelinated nerve fibres
4. Areolar tissue

✅ Correct Answer: 4

Peptidoglycan present in the cartilage is

1. ossein
2. chondroitin
3. cartilagin
4. casein

✅ Correct Answer: 2

Antibodies are secreted by

1. adipose cells
2. reticular cells
3. plasma cells
4. mast cells

✅ Correct Answer: 3

Histamine is secreted by

1. histiocytes
2. lymphocytes
3. fibroblasts
4. mast cells

✅ Correct Answer: 4

Ligament is

1. modified yellow elastic fibrous tissue
2. inelastic white fibrous tissue
3. modified white fibrous tissue
4. none of the above

✅ Correct Answer: 1

Collagen is

1. carbohydrate
2. lipid
3. fibrous protein
4. globular protein

✅ Correct Answer: 3

DNA synthesis takes place during_________ phase

1. M phase
2. G2 phase
3. G1 phase
4. S phase

✅ Correct Answer: 4

Where does spindle fibres attach to during metaphase?

1. kinetochore of the chromosome
2. kinetosome of the chromosome
3. centromere of the chromosome
4. telomere of the chromosome

✅ Correct Answer: 1

Nucleolus and endoplasmic reticulum start disappearing at

1. late prophase
2. early prophase
3. late metaphase
4. early metaphase

✅ Correct Answer: 2

Early prophase of a diploid cell has_____ sets of chromosomes; telophase of a diploid cell has ____ sets of chromosomes

1. 1;2
2. 2;1
3. 2;2
4. 1;1

✅ Correct Answer: 3

A protein complex; that links sister chromatids; is

1. actin
2. cohesin
3. myosin
4. actomyosin

✅ Correct Answer: 2

Formation of cell plate starts at

1. G2 phase
2. prophase
3. telophase
4. S phase

✅ Correct Answer: 3

If you want to count the number of chromosomes; which is the best stage to do so?

1. telophase
2. interphase
3. prophase
4. metaphase

✅ Correct Answer: 4

Mitotic anaphase and metaphase have

1. chromosomes are halved at anaphase
2. chromatids are halved at anaphase
3. the same number of chromosomes and chromatids
4. both chromosomes and chromatids are halved at anaphase

✅ Correct Answer: 1

Colchicine arrests cell division at

1. interphase
2. prophase
3. metaphase
4. anaphase

✅ Correct Answer: 3

Cell division occurring during cleavage

1. meiosis
2. mitosis
3. amitosis
4. closed mitosis

✅ Correct Answer: 4

Which of the following plastid is found in ripe fruits?

1. chromoplast
2. chloroplast
3. leucoplast
4. amyloplast

✅ Correct Answer: 1

Anthocyanin pigments are

1. water-insoluble and located in chromoplasts
2. water-soluble and located in chloroplasts
3. water-soluble and located in vacuoles
4. water-insoluble and located in vacuoles

✅ Correct Answer: 3

Chloroplast does not contain

1. xanthophyll
2. anthocyanin
3. carotene
4. chlorophyll ‘b’

✅ Correct Answer: 2

Which of the following pigment impart a red colour to tomato?

1. erythrocyanin
2. anthocyanin
3. 𝝱-carotene
4. lycopene

✅ Correct Answer: 4

Which of the following plastid doesn’t store food?

1. aleuroplasts
2. amyloplasts
3. chromoplasts
4. elaioplasts

✅ Correct Answer: 3

Protein storing plastid is

1. chromoplast
2. elaioplast
3. amyloplast
4. aleuroplast

✅ Correct Answer: 4

Which of the following pigment is present in carrots?

1. 𝝱-carotene
2. lycopene
3. lutein
4. fucoxanthin

✅ Correct Answer: 1

Which of the plastid(s) contains carotenoids?

1. leucoplast
2. chloroplast
3. chromoplast
4. both (b) and (c)

✅ Correct Answer: 4

In which of the following organelle; peptide synthesis takes place?

1. ribosomes
2. chromoplasts
3. chloroplasts
4. mitochondria

✅ Correct Answer: 1

Colour of tomato changes from green to red due to

1. chromoplast gets converted to the chloroplast
2. chromoplast disappears and chloroplast is formed
3. chloroplast gets converted to chromoplast
4. chloroplast disappears and chromoplast is formed

✅ Correct Answer: 3

Find the correct statement

1. Paramecium; Penicillium and Plasmodium belong to the same kingdom
2. Nostoc and Anabaena come under Protista
3. lichen is a symbiotic association of an alga and Protozoan
4. Yeast is a fungus and is used in bread and beer production

✅ Correct Answer: 4

Cyanobacteria are

1. oxygenic without nitrogenase
2. non-oxygenic without nitrogenase
3. oxygenic with nitrogenase
4. non-oxygenic with nitrogenase

✅ Correct Answer: 3

Blue-green algae are included in

1. Prokaryotes
2. Protista
3. Fungi
4. Bryophytes

✅ Correct Answer: 1

An organism that forms a symbiotic association with Anthoceros

1. Spirogyra
2. Nostoc
3. Ulothrix
4. All of the above

✅ Correct Answer: 2

Which of the following structure contains a polar nodule on both ends

1. heterocyst
2. hormogonia
3. akinetes
4. None of the above

✅ Correct Answer: 1

Nostoc form

1. compound colony
2. simple colony
3. both (a) and (b)
4. None of these

✅ Correct Answer: 3

Which of the angiosperm contains Nostoc as an endophyte?

1. Gunnera manicata
2. Arachis hypogea
3. Melia indica
4. None of the above

✅ Correct Answer: 1

Coloured portion of the nostoc cell is

1. genophore
2. inner centroplasm
3. outer chromoplasm
4. central body

✅ Correct Answer: 3

Heterocyst of Nostoc are

1. intercalary
2. terminal
3. both terminal and intercalary
4. none

✅ Correct Answer: 1

Sexual reproduction is absent in

1. Volvox
2. Nostoc
3. Aspergillus
4. Ulothrix

✅ Correct Answer: 2

A phosphodiester bond is present in

1. Nucleic acids in a nucleotide
2. Monosaccharides in a polysaccharide
3. Amino acids in a polypeptide
4. Fatty acids in a diglyceride

✅ Correct Answer: 1

Uridine present in RNA is

1. nucleotides
2. pyrimidine
3. purine
4. nucleoside

✅ Correct Answer: 4