300+ REAL TIME NEET Biology Objective Questions & Answers 2023

300+ TOP MCQs on Haemophilia 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 Haemophilia Multiple Choice Questions

MCQs on Haemophilia :

1. Haemophilia is caused by
(a) Bacteria
(b) Virus
(c) Genetic mutation
(d) Cause unknown

Answer

Answer: (c)

2. This is a complication of haemophilia
(a) Bleeding in the head
(b) joint swelling
(c) death
(d) all of these

Answer

Answer: (d)

3. In patients with haemophilia, which of these can increase the risk of cerebral microbleeds?
(a) cardiovascular risk factors
(b) increased age
(c) Hepatitis C infection
(d) all of these

Answer

Answer: (d)

4. This disease falls under the same category as colourblindness in man
(a) Presbyopia
(b) Night blindness
(c) Diabetes insipidus
(d) Haemophilia

Answer

Answer: (d)

5. This is ineffective against antibiotics
(a) bacterial infected gonorrhoea
(b) bacterial infected wound
(c) haemophilia
(d) bacterial infected throat

Answer

Answer: (c)

6. This lacks in patients with haemophilia A
(a) X chromosome
(b) Calcium
(c) Antihemophilic factor
(d) Plasma thromboplastin

Answer

Answer: (c)

7. Rarely females experience the physiological defect of haemophilia as they do so only when they are
(a) carrier for the defect
(b) wives of haemophilic husbands
(c) homozygous for the defect
(d) heterozygous for the defect

Answer

Answer: (c)

8. Haemophilia is
(a) X – linked
(b) Y – linked
(c) Z – linked
(d) Autosomal

Answer

Answer: (a)

9. Haemophilia is as a result of a lack of
(a) STH
(b) ADH
(c) AHF
(d) ACTH

Answer

Answer: (c)

10. The reason why haemophilia is more commonly observed in human males than in females is due to
(a) the disease is due to Y-linked recessive mutation
(b) the disease is due to X-linked recessive mutation
(c) as a huge population of girls die in infancy
(d) the disease is due to X-linked dominant mutation

Answer

Answer: (b)

300+ TOP MCQs on Apiculture and Answers

MCQs on Apiculture :

1. Amongst honey bees, the workers are:
(a) Female
(b) Male
(c) Both females and males
(d) Hermaphrodite

Answer

Answer: (a)

2. The generic name of which of these is Apis?
(a) Fish
(b) Honey bee
(c) Lac insect
(d) Prawn

Answer

Answer: (b)

3. Apis dorsata is used to refer to
(a) Little bee
(b) Indian bee
(c) European bee
(d) Rock bee

Answer

Answer: (d)

4. The honey bee is of greatest use to mankind as:
(a) It is of medicinal benefits
(b) Helps in cross-pollination
(c) We get honey from them
(d) None of these

Answer

Answer: (b)

5. Nature of honey is
(a) Acidic
(b) Alkaline
(c) Neutral
(d) Turns basic after a few days

Answer

Answer: (a)

6. Honey is
(a) Nectar of a flower
(b) Nectar stored in the honey sac
(c) Nectar mixed with saliva and stored in the honey sac
(d) Nectar and water sucked by honey bee

Answer

Answer: (c)

7. The bee carries the pollen back to its colony on:
(a) Its body
(b) Its middle legs
(c) Its front legs
(d) Its rear legs

Answer

Answer: (d)

8. The chief constituent of honey is
(a) Disaccharides
(b) Monosaccharide
(c) Polysaccharides
(d) Fats

Answer

Answer: (b)

9. For how long does a worker bee live in the summer?
(a) For 2 weeks
(b) For 2 months
(c) For 4 months
(d) For 6 months

Answer

Answer: (b)

10. The development of a male bee (drone) takes how long?
(a) 16 days
(b) 19 days
(c) 22 days
(d) 24 days

Answer

Answer: (d)

300+ TOP MCQs on Mendelian Disorders in Humans and Answers

MCQs on Mendelian Disorders in Humans :

1. Which of the following is a type of autosomal recessive genetic disorder?
(a) Haemophilia
(b) Skeletal dysplasia
(c) Sickle cell anaemia
(d) None of the above

Answer

Answer: (c)

2. Which of the following disorder is also called the Royal disease?
(a) Colour blindness
(b) Haemophilia
(c) Sickle cell anaemia
(d) Alzheimer’s disease

Answer

Answer: (b)

3. Which of the following disorder is an example of point mutation?
(a) Sickle cell anaemia
(b) Down’s syndrome
(c) Night blindness
(d) Thalassemia

Answer

Answer: (a)

4. 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?
(a) Autosomal recessive
(b) Autosomal dominant
(c) Se-linked recessive
(d) Se-linked dominant

Answer

Answer: (d)

5. Which of the following genotypes and phenotypes in a man may be the correct result of aneuploidy in se chromosomes?
(a) 22 pairs + Y females
(b) 22 pairs + XY females
(c) 22 pairs + XXY females
(d) 22 pairs + XXXY females

Answer

Answer: (c)

6. 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?
(a) Only daughters are haemophilic and colour blind
(b) Both sons and daughters will be haemophilic and colour blind
(c) 50 per cent haemophilic and colour blind sons and 50% normal sons
(d) 50 per cent haemophilic colour blind daughters and 50% colour blind daughters

Answer

Answer: (c)

7. 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)?
(a) 100 per cent
(b) 50 per cent
(c) 25 per cent
(d) 0 per cent

Answer

Answer: (d)

8. 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)?
(a) 100 per cent
(b) 75 per cent
(c) 50 per cent
(d) 25 per cent

Answer

Answer: (b)

9. Which of the following is a trait of X-linked recessive?
(a) Albinism
(b) Haemophilia
(c) Huntington’s disease
(d) None of these

Answer

Answer: (b)

10. The mode of inheritance for the trait – Fragile X syndrome is________.
(a) X linked dominant
(b) X linked recessive
(c) Autosomal dominant
(d) Autosomal recessive

Answer

Answer: (a)

300+ TOP MCQs on Amino Acids and Answers

MCQs on Amino Acids :

1. Which among the following is not polymeric?
(a) Carbohydrates
(b) Nucleic acids
(c) Proteins
(d) Lipids

Answer

Answer: (d)

2. The simplest amino acid is
(a) Glycine
(b) Alanine
(c) Asparagine
(d) Tyrosine

Answer

Answer: (a)

3. Amino acids are mostly synthesised from
(a) fatty acids
(b) mineral salts
(c) 𝜶-ketoglutaric acid
(d) volatile acids

Answer

Answer: (c)

4. Amino acids with the aliphatic ‘R’ group are
(a) Glycine, alanine, leucine
(b) Serine, threonine, cysteine
(c) Lysine, arginine, histidine
(d) Phenylalanine, tyrosine and tryptophan

Answer

Answer: (a)

5. Which of the following amino acids is not necessary to be taken in the diet?
(a) histidine
(b) threonine
(c) serine
(d) lysine

Answer

Answer: (c)

6. An amino acid yielding acetyl CoA during catabolism is
(a) ketogenic
(b) glucogenic
(c) essential
(d) both glucogenic and ketogenic

Answer

Answer: (a)

7. The first amino acid of any polypeptide chain in eukaryotes is
(a) valine
(b) methionine
(c) glycine
(d) alanine

Answer

Answer: (b)

8. Amino acids with aromatic side chain are
(a) tryptophan, asparagine, tyrosine
(b) tryptophan, threonine, tyrosine
(c) phenylalanine, tryptophan, serine
(d) phenylalanine, tryptophan, tyrosine

Answer

Answer: (d)

9. The naturally occurring proteins consist of
(a) D-amino acids
(b) L-amino acids
(c) both (a) and (b)
(d) none of these

Answer

Answer: (b)

10. Which of the following amino acids has to be supplemented in the diet?
(a) phenylalanine
(b) cysteine
(c) glutamine
(d) asparagine

Answer

Answer: (a)

300+ TOP MCQs on Photoperiodism and Vernalization and Answers

MCQs on Photoperiodism and Vernalization :

1. This influences the flowering process
(a) Photoperiod
(b) amount of green pigment
(c) acidity of the soil
(d) water in the soil

Answer

Answer: (a)

2. Pigment phytochrome is involved in
(a) Geotropism
(b) Photoperiodism
(c) Phototropism
(d) Photorespiration

Answer

Answer: (b)

3. Phytochrome is found in
(a) Fungi
(b) Algae
(c) Flowering plants
(d) Vascular cryptograms

Answer

Answer: (c)

4. The change over from vegetative to reproductive phase in many plants takes place in response to
(a) Oxygen content in the air
(b) severity of temperature
(c) length of the day
(d) mainly the food material available in the soil

Answer

Answer: (c)

5. Reversal of etiolation effect by light is called
(a) Red-far red light interaction
(b) Photomorphogenesis
(c) Anisotropic wall expansion
(d) Richmond Lang effect

Answer

Answer: (b)

6. A plant that needs not less than 10 hours of light to flower is
(a) Day neutral plant
(b) Long day plant
(c) Short day plant
(d) None of the above

Answer

Answer: (b)

7. This hormone can replace vernalization
(a) Cytokinins
(b) Gibberellins
(c) Auxin
(d) Ethylene

Answer

Answer: (b)

8. When the dark period of short day plants is interrupted by a brief exposure of light, then the plant
(a) flowers immediately
(b) will not flower at all
(c) turns into a long day plant
(d) gives more flowers

Answer

Answer: (b)

9. The pigment involved in red-far red light interconversion is
(a) Lycopen
(b) Phytochrome
(c) Cytochrome
(d) Xanthophyll

Answer

Answer: (b)

10. With which of the following process Cholodny-Went theory is concerned
(a) Photorespiration
(b) Photoperiodism
(c) Phototropism
(d) Photomorphogenesis

Answer

Answer: (c)

300+ TOP MCQs on Implantation and Gastrulation and Answers

MCQs on Implantation and Gastrulation :

1. ___________ is formed during gastrulation
(a) gill
(b) vitelline membrane
(c) heart
(d) archenteron

Answer

Answer: (d)

2. Mesoderm gives rise to all the structures except
(a) gonads
(b) circulatory system
(c) nervous system
(d) muscular system

Answer

Answer: (c)

3. The fertilized eggs in human females gets implanted in uterus
(a) after one month of fertilization
(b) after two months of fertilization
(c) after about 7 days of fertilization
(d) after 3 weeks of fertilization

Answer

Answer: (c)

4. Brain, nerve cells and spinal cord or the Central nervous system develops from embryonic
(a) mesoderm
(b) endoderm
(c) ectoderm
(d) both (b) and (c)

Answer

Answer: (c)

5. This list contains only the mesodermal structures
(a) Heart, blood, bones, notochord
(b) heart, blood, muscles, liver
(c) notochord, blood, liver, muscles
(d) liver, heart, bones, blood

Answer

Answer: (a)

6. Implantation is the process of
(a) attachment of blastocyst to the uterine wall
(b) egg movement
(c) degeneration of egg
(d) egg fertilization

Answer

Answer: (a)

7. This embryo has parasitic mode of nutrition
(a) mammalian embryo
(b) bird’s embryo
(c) amphibian embryo
(d) reptilian embryo

Answer

Answer: (a)

8. If the nuclei from an 8-celled stage of an embryo are transplanted into enucleated eggs, which of the following events is likely to take place
(a) recipient egg dies
(b) donor nuclei die in the new environment
(c) cleavage occurs but is arrested after some time
(d) formation of viable embryo in the recipient eggs

Answer

Answer: (d)

9. Egg implantation is followed by
(a) Parturition
(b) Copulation
(c) Fertilization
(d) Gestation

Answer

Answer: (d)

10. Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no
(a) endometrial changes
(b) developing foetus
(c) corpus luteum
(d) developing ovum

Answer

Answer: (b)