R4RIN – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 18

 Mostly; the flesh of fruit is made of

1. Collenchyma
2. Parenchyma
3. Meristem
4. Schlerids

✅ Correct Answer: 2

Prosenchyma is a type of

1. Chlorenchyma
2. Collenchyma
3. Sclerenchyma
4. Parenchyma

✅ Correct Answer: 4

The tissue where cells are thin-walled; living; isodiametric along with intercellular spaces is

1. Arenchyma
2. Prosenchyma
3. Collenchyma
4. Parenchyma

✅ Correct Answer: 4

The main purpose that the aerenchyma serves in Parenchyma is

1. Offers flexibility
2. Renders Buoyancy
3. Provides structural framework
4. Provides mechanical support

✅ Correct Answer: 2

Which of this is not a function that Parenchyma performs

1. Stores nutrients and food
2. Aids in regeneration; healing and repairs wounds
3. Provides foundation and support
4. None of these

✅ Correct Answer: 4

The tissue that provides maximum mechanical strength to the plant is

1. Xylem
2. Phloem
3. Parenchyma
4. Collenchyma

✅ Correct Answer: 1

Parenchyma cells in the spongy mesophyll exhibit large intercellular spaces promoting:

1. To become nutrients for the future germinating embryo
2. Greater exposure to carbon dioxide
3. To distribute pressure evenly through the structure
4. No specific reason

✅ Correct Answer: 2

Vessels are found in

1. Most of the angiosperms and few gymnosperms
2. All angiosperms and some gymnosperms
3. All angiosperms; all gymnosperms and some pteridophytes
4. All pteridophytes

✅ Correct Answer: 1

Amongst honey bees; the workers are:

1. Female
2. Male
3. Both females and males
4. Hermaphrodite

✅ Correct Answer: 1

The generic name of which of these is Apis?

1. Fish
2. Honey bee
3. Lac insect
4. Prawn

✅ Correct Answer: 2

Apis dorsata is used to refer to

1. Little bee
2. Indian bee
3. European bee
4. Rock bee

✅ Correct Answer: 4

The honey bee is of greatest use to mankind as:

1. It is of medicinal benefits
2. Helps in cross-pollination
3. We get honey from them
4. None of these

✅ Correct Answer: 2

The division of cytoplasm is known as

1. Mitosis
2. Synapsis
3. Cytokinesis
4. Karyokinesis

✅ Correct Answer: 3

The stage in which chromosomes align on the equator of spindle fiber is

1. Telophase
2. Anaphase
3. Metaphase
4. Prophase

✅ Correct Answer: 3

The best stage at which the total number of chromosomes can be counted in any species is

1. Telophase
2. Metaphase
3. Late anaphase
4. Late prophase

✅ Correct Answer: 2

Balbiani rings are found in

1. Heterosome
2. Lampbrush chromosome
3. Autosome
4. Polytene chromsome

✅ Correct Answer: 4

This structure tends to vanish always during meiosis and mitosis

1. Plastids
2. Plasma membrane
3. Nucleolus and nuclear membrane
4. All of these

✅ Correct Answer: 3

Centrosome duplication takes place in this phase

1. S phase
2. G1 phase
3. G0 phase
4. M phase

✅ Correct Answer: 1

The __________ checkpoint is also known as restriction point

1. G1 checkpoint
2. G2 checkpoint
3. M checkpoint
4. None of these

✅ Correct Answer: 1

The characteristic of this stage of mitosis is the separation of the sister chromatids

1. Telophase
2. Metaphase
3. Prometaphase
4. Anaphase

✅ Correct Answer: 4

This condition is necessary for a cell to qualify through the G2 checkpoint

1. Cell should be of a size sufficient enough
2. Complete and accurate DNA replication
3. Sufficient stockpile of nucleotides
4. Complete attachment of mitotic spindle fibers to kinetochores

✅ Correct Answer: 2

Individual chromosomes become distinct through a light microscope during this mitotic stage

1. Prometaphase
2. Prophase
3. Anaphase
4. Metaphase

✅ Correct Answer: 2

Which of the following is a type of autosomal recessive genetic disorder?

1. Haemophilia
2. Skeletal dysplasia
3. Sickle cell anaemia
4. None of the above

✅ Correct Answer: 3

Which of the following disorder is also called the Royal disease?

1. Colour blindness
2. Haemophilia
3. Sickle cell anaemia
4. Alzheimer’s disease

✅ Correct Answer: 2

Which of the following disorder is an example of point mutation?

1. Sickle cell anaemia
2. Down’s syndrome
3. Night blindness
4. Thalassemia

✅ Correct Answer: 1

If the father in a family has a disease while the mother is normal; the daughters only are inherited by this disease and not the sons. Name this type of disease?

1. Autosomal recessive
2. Autosomal dominant
3. Sex-linked recessive
4. Sex-linked dominant

✅ Correct Answer: 4

Which of the following genotypes and phenotypes in a man may be the correct result of aneuploidy in sex chromosomes?

1. 22 pairs + Y females
2. 22 pairs + XY females
3. 22 pairs + XXY females
4. 22 pairs + XXXY females

✅ Correct Answer: 3

What will be the condition of the progeny if the father is normal; while the mother has one gene for haemophilia and one gene for colour blindness on one of the X chromosomes?

1. Only daughters are haemophilic and colour blind
2. Both sons and daughters will be haemophilic and colour blind
3. 50 per cent haemophilic and colour blind sons and 50% normal sons
4. 50 per cent haemophilic colour blind daughters and 50% colour blind daughters

✅ Correct Answer: 3

Cystic fibrosis is an autosomal recessive genetic disorder. What are the chances that the child would have the disease if any one of the parent (either mother or father)is a carrier of the faulty cystic fibrosis gene (Cc)?

1. 100 per cent
2. 50 per cent
3. 25 per cent
4. 0 per cent

✅ Correct Answer: 4

Alpha 1 anti-trypsin deficiency is an autosomal recessive genetic disorder. What are the chances that any of the offspring do not express the disease phenotype if both parents are genotype (Aa)?

1. 100 per cent
2. 75 per cent
3. 50 per cent
4. 25 per cent

✅ Correct Answer: 2

Which of the following is a trait of X-linked recessive?

1. Albinism
2. Haemophilia
3. Huntington’s disease
4. None of these

✅ Correct Answer: 2

The mode of inheritance for the trait – Fragile X syndrome is________.

1. X linked dominant
2. X linked recessive
3. Autosomal dominant
4. Autosomal recessive

✅ Correct Answer: 1

This statement about epithelial tissue is incorrect

1. epithelial cells rest on a cellular basement membrane splitting it from underlying connective tissues
2. covers the external body surface and the internal surface of some organs
3. adjacent cells are held by cell junctions with very little extracellular material
4. No blood vessels that supply nutrients to the epithelial cells

✅ Correct Answer: 1

The large amoeboid cells found in areolar tissue and are also part of our innate immune system are known as:

1. Mast cells
2. Macrophages
3. Adipocytes
4. Fibroblasts

✅ Correct Answer: 2

What are the glands referred to as when secretary granules leave cells by exocytosis with no loss of other cellular material

1. Merocrine
2. Holocrine
3. Autocrine
4. Apocrine

✅ Correct Answer: 1

In humans; bipolar neurons are found in

1. Spinal cord
2. Brain
3. Olfactory epithelium
4. Embryonic phases

✅ Correct Answer: 3

This about Periplaneta americana is incorrect

1. Mosaic vision
2. Excretion by structures – malphigian tubules
3. Paurometabolous development
4. Hemolymph delivers oxygen to tissues

✅ Correct Answer: 4

This structure has dense irregular connective tissue

1. Cartilage
2. Ligaments
3. Tendons
4. Skin

✅ Correct Answer: 4

In the bodies of complex animals; the most widely distributed and abundant tissue is

1. Neural
2. Muscular
3. Connective
4. Epithelium

✅ Correct Answer: 3

Sperms are stored in which part of the reproductive system in male cockroaches

1. Mushroom glands
2. Seminal vesicles
3. Testes
4. Vas deferens

✅ Correct Answer: 2

The role of the gap junction is to

1. separate two cells from each other
2. Prevent substances from leaking across a tissue
3. Carry out cementing to keep adjacent cells together
4. Enable communication between adjoining cells by connecting the cytoplasm for quick ion transfer; small molecules and some large molecules

✅ Correct Answer: 4

In comparison with humans; the erythrocytes in frogs are

1. nucleated along with the presence of haemoglobin
2. no nucleus but with haemoglobin
3. few and very much small
4. nucleated and without haemoglobin

✅ Correct Answer: 1

The first cloned sheep ‘Dolly’ was created through which of these techniques?

1. Nuclear transfer
2. Gene transfer
3. Germinal cell transfer
4. Somatic cell transfer

✅ Correct Answer: 4

Polenske value of milk is due to

1. Fats
2. Water-soluble fatty acids
3. Water-insoluble fatty acids
4. Proteins

✅ Correct Answer: 3

Lactose found in milk is a disaccharide composed of

1. Glucose and glucose
2. Glucose and fructose
3. Maltose and glucose
4. Galactose and glucose

✅ Correct Answer: 4

The lightest body weighed goat is

1. Beetal
2. Barbari
3. Jamnapari
4. Toggenburg

✅ Correct Answer: 2

This method is carried out for the castration of male pigs

1. Burdizzo
2. Hot iron
3. Knife
4. Elastrator

✅ Correct Answer: 3

The chemical nature of Estrogen is

1. Amino acid
2. Protein
3. Fatty acid
4. Steroid

✅ Correct Answer: 4

In animals; Grass tetany is caused due to deficiency of

1. Silicon
2. Sodium
3. Magnesium
4. Selenium

✅ Correct Answer: 3

Strip cup is used

1. Just after milking
2. Just before milking
3. At the middle of milking
4. Anytime during milking

✅ Correct Answer: 2