Intermediate Biology Exam 2023
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Questions and Answers

Which of the following is the symbol for mating?

  • (correct)

Which of the following is not a chromosol disorder?

  • Phenyl ketonuria (correct)
  • Down's syndrome
  • Turner's syndrome
  • Klinefelter's syndrome

In which of the following females heterogamety is found?

  • Humans
  • Cat
  • Honey bees
  • Birds (correct)

The trait which is expressed in heterozygous plants is known as....

<p>Dominant (B)</p> Signup and view all the answers

How many types of genotypes are there for ABO blood groups?

<p>6 (B)</p> Signup and view all the answers

Which of the following scientists prepared recombination map?

<p>Morgan (A)</p> Signup and view all the answers

Which laws of inheritance were propounded on basis of monohybrid?

<p>1, 2 and 3 (A)</p> Signup and view all the answers

Which pentose sugar is present in RNA?

<p>Ribose (C)</p> Signup and view all the answers

Due to which of the following reasons there is approximately equal distance maintained between two polynucleotide strands of DNA?

<p>The bases in the two strands are paired through hydrogen bonds forming base pairs. (C)</p> Signup and view all the answers

Which of the followings is not the reason for stability of DNA?

<p>In DNA every nucleotide residue has 2'-hydroxyl group in the pentose sugar. (B)</p> Signup and view all the answers

The process of evolution of different species in a given geographical area starting from a point and radiating to other geographical areas is known as.....

<p>Adaptive radiation (C)</p> Signup and view all the answers

Which of the following statements is false about the origin of life?

<p>In his experiment, Miller used oxygen, methane, hydrogen, ammonia and electric discharge at 800°c temperature in a closed flask. (C)</p> Signup and view all the answers

The DNA finger printing technique was initially developed by who among the following?

<p>Alec Jeffreys (C)</p> Signup and view all the answers

At which of the following sites the repressor protein binds to lac operon?

<p>Operator region (D)</p> Signup and view all the answers

Who among the following confirmed penicillin as a powerful and effective antibiotic?

<p>Alexander Fleming (A)</p> Signup and view all the answers

Which of the following produces citric acid?

<p>Acetobacter aceti (D)</p> Signup and view all the answers

Which of the following statements is incorrect about streptokinase?

<p>It functions as immunosuppressant. (A)</p> Signup and view all the answers

Which of the following statements is incorrect about Trichoderma?

<p>It is a free living bacterium. (A)</p> Signup and view all the answers

Which of the following fungi terms mycorrhiza?

<p>Glomus (C)</p> Signup and view all the answers

Who discovered blood circulation?

<p>William Harvey (A)</p> Signup and view all the answers

Which of the following statements is false about heroin?

<p>It is also called coke. (D)</p> Signup and view all the answers

Flashcards

Time Allowed

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Full Marks

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Subject

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Instructions for the Candidates

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OMR Answer Sheet

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Question Booklet Serial No.

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Giving Answers in Own Words

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Figures in the Right Hand Margin

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Completing the Answers

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Study Notes

  • This document is an examination paper, likely for a biology course.
  • The exam covers topics from intermediate biology.
  • The exam has two sections: Section A and Section B.
  • Section A contains objective-type questions.
  • Section B contains short and long answer questions.
  • The examination is to be completed in 3 hours and 15 minutes.
  • Candidates must fill in their question booklet number on the OMR sheet.
  • Candidates must answer questions in their own words, where possible.
  • Figures in the margin indicate marks.
  • Candidates have 15 minutes to read the questions before starting the exam.
  • Candidates are prohibited from using any electronic devices during the examination.

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Description

This examination paper is designed for intermediate biology students. It comprises two sections: objective-type questions in Section A and short/long answer questions in Section B, to be completed in a total of 3 hours and 15 minutes. Students will have 15 minutes of reading time before starting the exam.

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