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Maharashtra HSC Board Science Papers Free Download |
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Re: maharashtra hsc board science papers free download
As you want here I am giving below Maharashtra HSC Board Science Papers on your demand : Q.1. Select and write the most appropriate answer from the give n alternatives for each sub- question: [7] i. The biological scissors of DNA are __________. (A) ligases (B) polymerases (C) endonucleases (D) transcriptases ii. Vijaya, Padma, Kanti and Jayanti are high yielding varieti es of __________. (A) wheat (B) jowar (C) sugarcane (D) rice iii. Mitochondria are regarded as semiautonomous organelles, du e to the presence of __________. (A) Cristae (B) RNA (C) DNA (D) F 1 particles iv. Which of the following is mai nly responsible for ozone dep letion? (A) CFCs (B) hydrocarbons (C) carbon monoxide (D) carbon dioxide v. The process of formation of p artially decomposed organic ma tter is called __________. (A) fragmentation (B) leaching (C) catabolism (D) humification vi. The number of adenine molecules in a given DNA segment is 25 and the number of cytosine molecules is 45, the total numbe r of nucleotides in the segment is __________. (A) 70 (B) 140 (C) 90 (D) 50 vii. The microbial source of vinegar is __________. (A) Aspergillus niger (B) Rhizopus arrhizus (C) Acetobacter aceti (D) Streptomyces venezuela Maharashtra HSC Board Science Papers |
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