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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 Which one of the given is non sense codon.
  • A. AUG
  • B. ACU
  • C. GAU
  • D. UAA
2 Which of the following is a 'start' codon
  • A. AUG
  • B. UAG
  • C. UAA
  • D. UGA
3 Each tRNA has a sequence of three bases called anticodon which is complementary to codon of
  • A. rRNA
  • B. tRNA
  • C. mRNA
  • D. snRNA
4 The number of chromosomes in frog is
  • A. 52
  • B. 26
  • C. 13
  • D. 7
5 Anti codes present on
  • A. mRNA
  • B. tRNA
  • C. rRNA
  • D. DNA
6 No of chromosomes in Honey bee are.
  • A. 6
  • B. <div>20</div>
  • C. 32
  • D. 40
7 Unlike most proteins, histones are.
  • A. Positively charges
  • B. Neutral
  • C. discharged
  • D. Negatively charged
8 The genetic code for glycine is.
  • A. UAG
  • B. GAU
  • C. GUA
  • D. GGU
9 A strand of DNA, which is not transcribed is called as.
  • A. Template strand
  • B. Antisense strand
  • C. Lagging strand
  • D. coding strand
10 A central role for chromosomes in heredity was first suggested in 1900 by.
  • A. Karl correns
  • B. W. Sutton
  • C. F. Griffiths
  • D. T.H.Morgan

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