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Biology · PYQ NEET UG 2019(2)
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2022 questions
Biology · PYQ NEET UG 2022
In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:
Read answer →Biology · CELL THE UNIT OF LIFE
Given below are two statements:\n Statement I: The ribosomes of chloroplasts are 70S, which are smaller than the cytoplasmic 80S ribosomes of eukaryotic cells.\n Statement II: The inner membrane of the chloroplast is comparatively more permeable to solutes than its outer membrane. \nIn the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Biology · PYQ NEET UG 2022
Statements related to human Insulin are given below. Which statement(s) is/are correct about genetically engineered Insulin? \ni. Pro-hormone insulin contain extra stretch of C-peptide ii. A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them. iii. Insulin used for treating Diabetes was extracted from Cattles and Pigs. iv. Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone. v. Some patients develop allergic reactions to the foreign insulin. Which of the above statements is/are correct?
Read answer →Biology · PYQ NEET UG 2019(1)
What map unit (Centimorgan) is adopted in the construction of genetic maps?
Read answer →Biology · ANATOMY OF FLOWERING PLANTS
Which of the following anatomical features is distinct in monocot roots compared to dicot roots?
Read answer →Biology · ANATOMY OF FLOWERING PLANTS
Consider the following statements regarding internal plant anatomy: (A) In dorsiventral leaves, the palisade parenchyma is placed adaxially and consists of elongated cells arranged vertically. (B) In isobilateral leaves, the mesophyll is distinctly differentiated into palisade and spongy parenchyma. (C) Bulliform cells help in minimizing water loss during water stress by making leaves curl inwards. (D) Conjunctive tissue is present between xylem and phloem patches in root vascular bundles. Which of the above statements are correct?
Read answer →Biology · PYQ NEET UG 2021
Match List-I with List-II: List-I List-II A Cells with active cell division capacity I Vascular tissue B Tissue having all cells similar in structure and function II Meristematic tissue C Tissue having different types of cell III Sclerid D Dead cells with highly thickened walls and narrow lumen IV Simple tissue Select the correct answer from the options given below.
Read answer →Biology · BIOLOGICAL CLASSIFICATION
Diatoms are chief 'producers' in the oceans. What structural composition renders their cell wall indestructible, giving rise to 'diatomaceous earth'?
Read answer →Biology · ANIMAL KINGDOM
Identify the incorrect pairing among Arthropod examples and their functional biological categories:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Match List-I with List-II: List-I List-II A Alternate phyllotaxy I Calotropis B Opposite phyllotaxy II Alstonia C Whorled phyllotaxy III China rose D Pulvinus leaf base IV Leguminous plants Choose the correct answer from the options given below:
Read answer →Biology · ANIMAL KINGDOM
Which of the following cnidarians possesses a hard skeleton composed predominantly of calcium carbonate \( \text{CaCO}_3 \)?
Read answer →Biology · PYQ NEET UG 2026
Photorespiration reaction catalyzed by RuBisCo is shown below: ( $\text{RuBP} + \text{O}_2 \rightarrow \text{3-Phosphoglycerate} + \text{X}$ ) Identify "X" from the given options :
Read answer →Biology · PYQ NEET UG 2016(1)
One of the major components of cell wall of most fungi is
Read answer →Biology · ANATOMY OF FLOWERING PLANTS
In dorsiventral (dicotyledonous) leaf, the tissue between upper and lower epidermis is called mesophyll and is differentiated into:
Read answer →Biology · PYQ NEET UG 2016(1)
Specialised epidermal cells surrounding the guard cells are called
Read answer →Biology · PYQ NEET UG 2017
Frog's heart, when taken out of the body, continues to beat for sometime. Select the best option from the following statements. i. Frog is a poikilotherm. ii. Frog does not have any coronary circulation. iii. Heart is "myogenic" in nature. iv. Heart is autoexcitable.
Read answer →Biology · PYQ NEET UG 2025
नेफ्रॉन के समीपस्थ (P) और दूरस्थ (D) नलिका के संबंध में निम्नलिखित में से कौन सा आरेख सही है?
Read answer →Biology · PYQ NEET UG 2019(2)
In a marriage between male with blood group A and female with blood group B, the progeny had either blood group AB or B. What could be the possible genotype of parents?
Read answer →Biology · Principles and Processes in Biotechnology
Which of the following vectors is naturally disarmed and modified to deliver genes of interest into a variety of dicotyledonous plants?
Read answer →Biology · CELL THE UNIT OF LIFE
Consider the following statements regarding the formulation of cell theory: (A) Matthias Schleiden concluded that the presence of cell wall is a unique character of plant cells. (B) Theodore Schwann studied different types of animal cells and observed a thin outer layer known as plasma membrane. (C) Schleiden and Schwann together formulated the cell theory but could not explain how new cells were formed. Which of the above statements are correct?
Read answer →Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS
Examine the provided diagram showing false fruits. In the transverse section of an apple (b), which labeled floral part forms the major edible fleshy part?
Read answer →Biology · MICROBES IN HUMAN WELFARE
Match List-I with List-II: List-I List-II A Ladybird I Controls butterfly caterpillars B Bacillus thuringiensis II Controls aphids C Dragonfly III Fixes nitrogen in paddy fields D Anabaena IV Controls mosquitoes Choose the correct answer from the options given below:
Read answer →Biology · PYQ NEET UG 2017
