Nalviruthi’s Post

26. Thermococcus, Methanococcus and Methanobacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that contain a cytoskeleton and ribosomes (c) archaebacteria that contain protein homologous to eukaryotic core histones (d) archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled. (2008) C #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

Humanity has discovered an estimated 0.001 percent of all microbes. Most scientists work with E. coli, which is easy to handle and experiment with in the lab. The Cultivarium is a non-profit that aims to democratize access to extraordinary microbes as it believes that the next biological breakthrough will come from these overlooked microbes. It will build tools to grow, transform, and engineer microbes such as the salt lovers, heat tolerators, and geyser growers that have long been inaccessible to scientists. #technology #science https://lnkd.in/gdJR6gUr

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21. Match the following columns and select the correct option. Column-I Column-II (A) Gregarious, polyphagous pest (i) Asterias (B) Adult with radial symmetry and larva with bilateral symmetry (ii) Scorpion (C) Book lungs (iii) Ctenoplana (D) Bioluminescence (iv) Locusta (A) (B) (C) (D) (a) (i) (iii) (ii) (iv) (b) (iv) (i) (ii) (iii) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv) (2020) B . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

53. In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct? (a) Pila (i) Body segmented (ii) Mouth with radula Mollusca (b) Asterias (i) Spiny skinned (ii) Water vascular system Echinodermata (c) Sycon (i) Pore bearing (ii) Canal system Porifera (d) Periplaneta (i) Jointed appendages (ii) Chitinous exoskeleton Arthropoda (2012) A . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

113. In Pinus, the wings of the seed develop from (a) ovuliferous scale (b) integument (c) nucellus (d) bract. (1994) A . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

19. Match the following columns and select the correct option. Column-I Column-II (A) 6-15 pairs of gill slits (i) Trygon (B) Heterocercal caudal fin (ii) Cyclostomes (C) Air bladder (iii) Chondrichthyes (D) Poison sting (iv) Osteichthyes (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (iii) (iv) (i) (ii) (c) (iv) (ii) (iii) (i) (d) (i) (iv) (iii) (ii) (2020) A . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

22. Match the following organisms with respective characteristics. (A) Pila (i) Flame cells (B) Bombyx (ii) Comb plates (C) Pleurobrachia (iii) Radula (D) Taenia (iv) Malpighian tubules Select the correct option from the following. (A) (B) (C) (D) (a) (iii) (ii) (iv) (i) (b) (iii) (ii) (i) (iv) (c) (iii) (iv) (ii) (i) (d) (ii) (iv) (iii) (i) (2019) C . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS

13. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason(R). Assertion (A) : All vertebrates are chordates but all chordates are not vertebrates. Reason (R): Notochord is replaced by vertebral column in the adult vertebrates. In the light of the above statements, choose appropriate answer from the options given below. (a) Both (A) and (R) are correct and (R) is not the correct explanation of (A) (b) (A) is correct but (R) is not correct (c) (A) is not correct but (R) is correct (d) Both (A) and (R) are correct but (R) is incorrect explanation of (A) (2022) A . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWERS FOR NEET AND COMPETITIVE EXAMS

59. Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is replaced by a vertebral column in adult frog. (c) It is absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus. (Mains 2011) C . . #NEET #neetbiology #neetpreparation #neetaspirants #neetexam #inditeaching @inditeaching https://lnkd.in/dSyVNVf2 NCERT CLASS 11TH AND 12TH BIOLOGY MCQ OR OBJECTIVE QUESTIONS WITH ANSWER FOR NEET AND COMPETITIVE EXAMS