300+ REAL TIME NEET Biology Objective Questions & Answers 2023

300+ TOP MCQs on Manures and Fertilizers and Answers

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Manures and Fertilizers Multiple Choice Questions

MCQs on Manures and Fertilizers :

1. Green manure plants are
(a) Poaceae
(b) Solanaceae
(c) Leguminosae
(d) Compositae

Answer

Answer: (c)

2. This chemical fertilizer is essential for better rhizobial nitrogen fixation
(a) calcium
(b) potassium
(c) sodium
(d) phosphorus

Answer

Answer: (d)

3. Azolla is used as a biofertilizer as it possesses
(a) humus in large quantities
(b) rhizobium
(c) mycorrhiza
(d) cyanobacteria

Answer

Answer: (d)

4. Pyrethrin is obtained from
(a) Chrysanthemum cinerariifolium
(b) Azadirachta indica
(c) Urtica dioica
(d) Tagetes erecta

Answer

Answer: (a)

5. This is not included in organic farming
(a) crop rotation
(b) chemical fertilizer
(c) green manures
(d) compost and farmyard manures

Answer

Answer: (b)

6. Appropriate use of cow dung is made in
(a) medicine
(b) fuel
(c) manure
(d) building/construction material

Answer

Answer: (c)

7. In children, this disease is caused due to excess nitrate fertilizers usage
(a) mumps
(b) jaundice
(c) septicemia
(d) methaemoglobinaemia

Answer

Answer: (d)

8. For paddy, the best fertilizer is
(a) Bacillus polymyxa
(b) Bacillus megaterium
(c) Azolla pinnata
(d) Rhizobium meliloti

Answer

Answer: (c)

9. Composited manure is formed from
(a) farm and household refuse
(b) animal refuse and rotted vegetable
(c) organic wastes from where biogas extraction takes place
(d) green and farmyard manure

Answer

Answer: (b)

10. A green manure is
(a) Maize
(b) Rice
(c) Sorghum
(d) Sesbania

Answer

Answer: (d)

300+ TOP MCQs on Animal Tissue and Answers

MCQs on Animal Tissue :

1. In connective tissue sheaths, this is the correct sequence stretching from the outermost to the innermost layer
(a) epineurium, endoneurium, perineurium
(b) perineurium, epineurium, endoneurium
(c) perineurium, endoneurium, epineurium
(d) epineurium, perineurium, endoneurium

Answer

Answer: (d)

2. This is the difference between a nerve and a neuron
(a) consists of different number of cells
(b) one has motor and other has sensory function
(c) nerves are made of grey matter while neurons of white matter
(d) nerves are present in central nervous system only

Answer

Answer: (a)

3. The only connective tissue without fibroblasts is
(a) areolar connective tissue
(b) bone
(c) cartilage
(d) blood

Answer

Answer: (d)

4. In these tissue cells, Lacunae are enclosed
(a) Cartilage
(b) Bone tissue
(c) both (a) and (b)
(d) muscular tissue

Answer

Answer: (c)

5. Mast cells are linked to
(a) neural tissue
(b) areolar connective tissue
(c) endocrine glands
(d) exocrine glands

Answer

Answer: (b)

6. These are brain macrophages
(a) astrocytes
(b) microglial cells
(c) ependymal cells
(d) oligodendrocytes

Answer

Answer: (b)

7. This is not a function of neuroglia
(a) phagocytosis
(b) isolation of neurons
(c) secretion of cerebrospinal fluid
(d) information processing

Answer

Answer: (d)

8. This cell is not a type of neuroglia found in CNS
(a) microglia
(b) astrocytes
(c) ependymal cells
(d) Schwann cells

Answer

Answer: (d)

9. Categorization of epithelial tissue is based on this
(a) function
(b) type of matrix
(c) structural modification
(d) non voluntary or voluntary action

Answer

Answer: (c)

10. This is correct about epithelial tissue
(a) lack of nerve supply
(b) lack of blood supply
(c) lack of free surface
(d) lack of intercellular matrix

Answer

Answer: (b)

300+ TOP MCQs on Polygenic Inheritance and Answers

MCQs on Polygenic Inheritance :

1. In corolla length of Nicotiana longiflora, polygenic inheritance was studied by
(a) Joseph Kolreuter
(b) E.M. East
(c) Francis Galton
(d) Nilsson-Ehle

Answer

Answer: (b)

2. Marriages between close relatives should be avoided as it causes more
(a) Abnormalities in child birth
(b) Mutations
(c) Recessive alleles to come together
(d) Multiple births

Answer

Answer: (c)

3. When two or more nonallelic gene pairs affect the same character in the same way, it is called
(a) pleiotropy
(b) polygenic inheritance
(c) additive expressivity
(d) total penetrance

Answer

Answer: (b)

4. Polygenes exhibit
(a) Different phenotypes
(b) Different genotypes
(c) Similar genotypes and phenotypes
(d) Both (a) and (b)

Answer

Answer: (a)

5. Raju and Rani are planning a family, but sas each has a brother having the sickle-cell disorder, they are worried that their kids might develop the disorder too. Neither Raju, Rani nor their respective parents have the disorder. They decide to consult a genetic counsellor who conveys them this
(a) its is possible that none of their kids will have the disorder, but blood tests on both of them should be carried out to confirm
(b) all of their children will have sickle-cell disorder
(c) one of four of their children can be expected to have sickle cell
(d) there is no chance of any of their kids having sickle cell

Answer

Answer: (a)

6. Traits which exhibit continuous phenotypic variation are typically determined by this inheritance form
(a) incomplete dominance
(b) polygene inheritance
(c) multiple-allele inheritance
(d) sex-linked inheritance

Answer

Answer: (b)

7. One of the X chromosomes in females is inactivated by
(a) environmental factors
(b) enzymes coded for by mitochondrial DNA
(c) number of dominant genes found on each X chromosome
(d) epigenetic markers

Answer

Answer: (d)

8. Pick the correct statement
(a) Pleiotropic genes exhibit single phenotype
(b) Pleiotropy is caused by a gene that has multiple phenotypic effect
(c) Lethal genes causes the appearance of ancestral characters
(d) Sickle cell anemia is an example of multifactorial inheritance

Answer

Answer: (b)

9. Which of these illustrates pleiotropy?
(a) Matings between earless sheep and long eared sheep always result in short eared offspring
(b) Human cystic fibrosis causes many symptoms from respiratory distress to digestive problems
(c) Wheat kerneis can range from white to red in color, a trait governed by multiple genes
(d) The genes for scarlet eyes and hairy body in fruit flies are located on the same chromosome

Answer

Answer: (b)

10. Morphan’s syndrome is as a result of
(a) Polygene
(b) Pseudogene
(c) Modifier gene
(d) Pleiotropic gene

Answer

Answer: (d)

300+ TOP MCQs on Slime Moulds and Answers

MCQs on Slime Moulds :

1. Slime moulds were included in which of the following kingdom?
(a) Monera
(b) Protista
(c) Fungi
(d) Plantae

Answer

Answer: (b)

2. Which of the following characteristic structure is found in slime mould?
(a) Pseudoelaters
(b) Elaters
(c) Capitulum
(d) Capillitium

Answer

Answer: (d)

3. Where does the spore formation occur in cellular slime mould?
(a) Plasmodium
(b) Sporangium
(c) Sporophore
(d) Pseudoplasmodium

Answer

Answer: (b)

4. Spores of slime moulds develop into
(a) Amoeboid cells
(b) Biflagellated cells
(c) Swarm cells
(d) All of the above

Answer

Answer: (d)

5. Which is the example of slime mould?
(a) Anabaena
(b) Rhizopus
(c) Physarum
(d) Thiobacillus

Answer

Answer: (c)

6. Slime moulds, algae, protozoa are related in having
(a) Eukaryotic cell
(b) Prokaryotic cell
(c) Flagella
(d) Pseudopodia

Answer

Answer: (a)

7. A characteristic feature of a “true slime mould” is
(a) Occurs as an independent cell
(b) A multinucleate plasmodial stage
(c) Secretes mucoidal exudate
(d) None of the above

Answer

Answer: (b)

8. Slug formation is induced by
(a) Over crowding
(b) Plentiful resources
(c) Both (a) and (b)
(d) Unfavourable conditions

Answer

Answer: (d)

9. Slime mould differ from fungi in having
(a) Phagocytosis mode of nutrition
(b) Amoeboid cells
(c) Both (a) and (b)
(d) None of the above

Answer

Answer: (c)

10. Sporangia of slime mould contain
(a) Haploid spores
(b) Diploid zygotes
(c) Gametes
(d) None of the above

Answer

Answer: (a)

300+ TOP MCQs on Stress Hormones and Answers

MCQs on Stress Hormones :

1. This hormone is produced under condition of stress which stimulates glycogenolysis in the liver of human beings
(a) Insulin
(b) Thyroxin
(c) Estradiol
(d) Adrenaline

Answer

Answer: (d)

2. Fight or flight reactions causes the activation of
(a) the parathyroid glands, leading to increased metabolic rate
(b) adrenal medulla leading to increased secretion of epinephrine and norepinephrine
(c) pancreas leading to a reduction in the blood sugar levels
(d) the kidney, causing suppression of the renin-angiotensin-aldosterone pathway

Answer

Answer: (b)

3. After trying for several years, a couple finally learnt that they are going to have a baby. They are experiencing this type of stress
(a) Strain
(b) Anxiety
(c) Distress
(d) Eustress

Answer

Answer: (d)

4. This part of the autonomic nervous system provides the body with energy for the fight-or-flight response
(a) Central nervous system
(b) Sympathetic nervous system
(c) Peripheral nervous system
(d) Parasympathetic nervous system

Answer

Answer: (b)

5. A real or perceived challenge or threat which causes the body to produce a response is a(n)
(a) injury
(b) phobia
(c) stressor
(d) frustration

Answer

Answer: (c)

6. The hormone released by the adrenal glands allows the body to make energy more readily available from the stored nutrients
(a) ACTH
(b) Cortisol
(c) Epinephrine
(d) Norepinephrine

Answer

Answer: (b)

7. When danger or stress is perceived/experienced, this response occurs in the body
(a) Exhaustion
(b) Adaption
(c) Fight-or-flight
(d) Resistance

Answer

Answer: (c)

8. This branch of science investigates the relationship between stress and the nervous and immune systems
(a) Neurolinguistics
(b) Sociology
(c) Adaptive immunology
(d) Psychoneuroimmunology

Answer

Answer: (d)

9. All of the following is true about the hormone epinephrine except that it
(a) is released by the pituitary gland
(b) is also known as adrenaline
(c) is secreted by the adrenal gland
(d) prepares the body for action

Answer

Answer: (a)

10. The primary hormone responsible for stress-related physiological responses, such as an increase in heart rate is
(a) insulin
(b) cortisol
(c) epinephrine
(d) thyroxin

Answer

Answer: (c)

300+ TOP MCQs on Parthenocarpy and Answers

MCQs on Parthenocarpy :

1. The process by which fruits are developed without fertilization is called _________.
(a) Apomixis
(b) Parthenocarpy
(c) Parthenogenesis
(d) Self-pollination

Answer

Answer: (b)

2. In which of the plant species, parthenocarpy takes place?
(a) Mango
(b) Banana
(c) Peach
(d) Jackfruit

Answer

Answer: (b)

3. Which of these plants will lose their economic value if its fruits are as a result of induced parthenocarpy?
(a) Banana
(b) Orange
(c) Grape
(d) Pomegranate

Answer

Answer: (d)

4. Which of the following plant hormones stimulates the development of parthenocarpic fruit?
(a) Auxin
(b) Cytokinin
(c) Gibberellins
(d) All of the above

Answer

Answer: (d)

5. Which of the following statement is false about parthenocarpy?
(a) Fruits developed are seedless
(b) The Ovary is stimulated with pollination
(c) The process is used as it yields high quality and consistency
(d) None of the above

Answer

Answer: (b)

6. The fruit in tomato is classified into _____.
(a) Pepo
(b) Pome
(c) Drupe
(d) Berry

Answer

Answer: (d)

7. Which of the following statement is false about Fabaceae?
(a) It was earlier mentioned to as Papilionoideae
(b) It is widely distributed across the world
(c) It is common to find plants with fibrous root system here
(d) It is a subfamily of family Leguminosae

Answer

Answer: (c)

8. Which of the following statement is false about Hilum?
(a) Hilum lies underneath micropyle
(b) Ccar over the seed coat
(c) Growing seeds are attached to the fruit through the hilum
(d) All of the above

Answer

Answer: (a)

9. What is the fruit of wheat and rice called?
(a) Follicle
(b) Caryopsis
(c) Siliqua
(d) Achene

Answer

Answer: (b)

10. Which of the following is not an agricultural product?
(a) Rice
(b) Jute
(c) Alum
(d) Cotton

Answer

Answer: (c)