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Biology · PYQ NEET UG 2023
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Biology · PYQ NEET UG 2023
Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R.\n Assertion A: Nephrons are of two types: Cortical & Juxta medullary, based on their relative position in cortex and medulla.\n Reason R: Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle.\nIn the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.\n Assertion A: Amniocentesis for sex determination is one of the strategies of Reproductive and Child Health Care Programme.\n Reason R: Ban on amniocentesis checks increasing menace of female foeticide.\nIn the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Which of the following are NOT considered as the part of endomembrane system?\nA. Mitochondria\nB. Endoplasmic Reticulum\nC. Chloroplasts\nD. Golgi complex\nE. Peroxisomes\nChoose the most appropriate answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Expressed Sequence Tags (ESTs) refers to
Read answer →Biology · PYQ NEET UG 2023
Match List I with List II :\nList I\n(Interaction)\nA. Mutualism\nB. Commensalism\nC. Amensalism\nD. Parasitism\nList II\n(Species A and B)\nI. \( +(A), O(B) \)\nII. \( -(A), O(B) \)\nIII. \( +(A), -(B) \)\nIV. \( +(A), +(B) \)\nChoose the correct answer from the options given below :
Read answer →Biology · PYQ NEET UG 2023
Match List-I with List-II: List-I List-II A Fovea I Visible coloured portion of eye that regulates diameter of pupil B Iri II External layer of eye formed of dense connective tissue C Blind spot III Point of greatest visual acuity or resolution D Sclera IV Point where optic nerve leaves the eyeball and photoreceptor cells are absent Choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements :\n Statement I : Gause's 'Competitive Exclusion Principle' states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.\n Statement II : In general, carnivores are more adversely affected by competition than herbivores.\nIn the light of the above statements, choose the correct answer from the options given below :
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.\n Assertion A: Endometrium is necessary for implantation of blastocyst.\n Reason R: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.\nIn the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements: Statement I: Ligaments are dense irregular tissue. Statement II: Cartilage is dense regular tissue. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?
Read answer →Biology · PYQ NEET UG 2023
Match List-I with List-II: List-I List-II A Taenia I Nephridia B Paramoecium II Contractile vacuole C Periplaneta III Flame cell D Pheretima IV Urecose gland Choose the correct answer from the options given below:
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Match List I with List II.\nList I (Cells)\nA. Peptic cells\nB. Goblet cells\nC. Oxyntic cells\nD. Hepatic cells\nList II (Secretion)\nI. Mucus\nII. Bile juice\nIII. Proenzyme pepsinogen\nIV. HCl and intrinsic factor for absorption of vitamin \( B_{12} \)\nChoose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Which of the following statements are correct?\nA. An excessive loss of body fluid from the body switches off osmoreceptors.\nB. ADH facilitates water reabsorption to prevent diuresis.\nC. ANF causes vasodilation.\nD. ADH causes increase in blood pressure.\nE. ADH is responsible for decrease in GFR.\nChoose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
The thickness of ozone in a column of air in the atmosphere is measured in terms of :
Read answer →Biology · PYQ NEET UG 2023
Cellulose does not form blue colour with Iodine because
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements: Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid. Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Match List I with List II :\nList I\nA. M Phase\nB. \( G_2 \) Phase\nC. Quiescent stage\nD. \( G_1 \) Phase\nList II\nI. Proteins are synthesized\nII. Inactive phase\nIII. Interval between mitosis and initiation of DNA replication\nIV. Equational division\nChoose the correct answer from the options given below :
Read answer →Biology · PYQ NEET UG 2023
The unique mammalian characteristics are:
Read answer →Biology · PYQ NEET UG 2023
Given below are two statements : Statement I : The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height. Statement II : Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling. In the light of the above statements, choose the most appropriate answer from the options given below :
Read answer →Biology · PYQ NEET UG 2023
Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by-
Read answer →Biology · PYQ NEET UG 2023
Which of the following are NOT under the control of thyroid hormone? A. Maintenance of water and electrolyte balance B. Regulation of basal metabolic rate C. Normal rhythm of sleep-wake cycle D. Development of immune system E. Support the process of R.B.Cs formation Choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2023
Which one of the following statements is correct?
Read answer →Biology · PYQ NEET UG 2023
