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20th Chapter

12th Class Biology Chapter 20 Test

Here you can prepare 12th Class Biology Chapter 20 Chromosomes and DNA Test. Click the button for 100% free full practice test.

Second Year Biology Chapter 20 Online MCQ Test for 2nd Year Biology Chapter 20 Chromosomes and DNA Preparation

This online test contains MCQs about following topics:.

- Types of Chromosomes - Composition of Chromosome - The Chromosomal Theory of Inheritance - DNA as Hereditary Material - What is a Gene - Cells Use RNA to Make Protein - Mutations

FSC Part 2 Biology Ch 20 Test
ic

Second Year Biology Chapter 20 Online MCQ Test for 2nd Year Biology Chapter 20 Chromosomes and DNA Preparation

Sr. # Questions Answers Choice
1 The no of chromosome in mouse is
  • A. 6
  • B. 32
  • C. 26
  • D. 40
2 A strand of DNA, which is not transcribed is called as.
  • A. Template strand
  • B. Antisense strand
  • C. Lagging strand
  • D. coding strand
3 Innate behavior is all except;
  • A. Coded in DNA
  • B. Modified in individuals life span
  • C. Modified with species evolution
  • D. Programmed responses to external stimuli
4 Pentose sugar in the molecule of DNA is
  • A. Ribose
  • B. Deoxyribose
  • C. Sucrose
  • D. Lactose
5 Unlike most proteins, histones are.
  • A. Positively charges
  • B. Neutral
  • C. discharged
  • D. Negatively charged
6 Genetic code is a combination of 3 nucleotides in DNA which specify a particular
  • A. Amino acid
  • B. Fatty acid
  • C. Vitamin
  • D. Steriod
7 A combination of three nucleotides of DNA that specifies as amio acid is called.
  • A. Cistron
  • B. Anticodon
  • C. Genetic code
  • D. Entron
8 In prokaryote within promoter there are two binding sites TTGACA also called -35 sequence and TATAAT also called
  • A. -10 sequence
  • B. - 20 sequence
  • C. - 30 sequence
  • D. - 35 sequence
9 RNA polymerase II synthesize.
  • A. mRNA
  • B. tRNA
  • C. rRNA
  • D. cDNA
10 How many million nucleotides are in DNA of typical human chromosome
  • A. 140
  • B. 160
  • C. 180
  • D. 200

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  • Aqeel Abbas Aqeel Abbas

    27 May 2022

    کا

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    12 Dec 2017

    Hi

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    Asan Rao

    10 Dec 2016

    great opportunity to become something

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