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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 Origin site of replication is one in
  • A. Prokaryotes
  • B. Eukaryotes
  • C. None of these
  • D. Both a & b
3 Chromosomal part which uncoils, during inter phase is called.
  • A. Chromatids
  • B. Satellite DNA
  • C. Euchromatin
  • D. Heterochromatin
4 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
5 Human cells have 46 chromosomes consisting of
  • A. 20 pairs
  • B. 21 pairs
  • C. 22 pairs
  • D. 23 pairs
6 In sickle cell anemia disease, a single thymine is replaced with an adenine in the DNA that codes for.
  • A. Valine
  • B. Glycine
  • C. Histidine
  • D. Glutamic acid
7 Walter Fleming first discovered chromosomes in the dividing cells of.
  • A. Frog larvae
  • B. Sea urchin larvae
  • C. Insect larvae
  • D. Salamander larvae
8 A sequence of three nucleotides in mRNA is called.
  • A. Cistron
  • B. Codon
  • C. Anticodon
  • D. Templet
9 In 1944 Oswald Avery along with Colin Macleod and Maclyn McCarty repeated experiments of
  • A. Lamarck
  • B. Griffith
  • C. Darwin
  • D. Spemann
10 A strand of DNA, which is not transcribed is called as.
  • A. Template strand
  • B. Antisense strand
  • C. Lagging strand
  • D. coding strand

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    Keval

    12 Dec 2017

    Hi

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    10 Dec 2016

    great opportunity to become something

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