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

Sr. # Questions Answers Choice
1 Pentose sugar in the molecule of DNA is
  • A. Ribose
  • B. Deoxyribose
  • C. Sucrose
  • D. Lactose
2 In the double helix of DNA adenine forms two hydrogen bonds with
  • A. Thymine
  • B. Guanine
  • C. Cytosine
  • D. Uracil
3 In 1944 Oswald Avery along with Colin Macleod and Maclyn McCarty repeated experiments of
  • A. Lamarck
  • B. Griffith
  • C. Darwin
  • D. Spemann
4 The genetic code for glycine is.
  • A. UAG
  • B. GAU
  • C. GUA
  • D. GGU
5 The particular array of chromosomes that an individual possesses called its.
  • A. Genotype
  • B. Phenotype
  • C. epistasis
  • D. Karvotype
6 Advantage of pecking orders is to:
  • A. Avoids injury to the strong animals
  • B. Protect territory
  • C. Find suitable mate
  • D. Assign specific role to individual subordinates
7 Transfer of genetic material from one cell to other that can alter the genetic make up of recipient cell is called.
  • A. Transcription
  • B. Replication
  • C. Translation
  • D. Transformation
8 Genetic code for the amino acid methionine is.
  • A. AUC
  • B. UGC
  • C. CGC
  • D. AUG
9 The no of chromosome in mouse is
  • A. 6
  • B. 32
  • C. 26
  • D. 40
10 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

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    Keval

    12 Dec 2017

    Hi

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    Asan Rao

    10 Dec 2016

    great opportunity to become something

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