Sail E0 Webinar

MCQs

Total Questions : 194 | Page 4 of 20 pages
Question 31. Breeding of two different true-breeding varieties of plants is called
  1.    mixing
  2.    hybridization
  3.    non breeding
  4.    self breeding
 Discuss Question
Answer: Option B. -> hybridization
Answer: (b).hybridization
Question 32. Purines are a type of nitrogenous bases that consist of _____ ring(s).
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 33. Nucleotide, basic unit of DNA consists of the sugar _________________
  1.    deoxyribose
  2.    oxyribose
  3.    mannose
  4.    fructose
 Discuss Question
Answer: Option A. -> deoxyribose
Answer: (a).deoxyribose
Question 34. The DNA structure was investigated in the year __________
  1.    1943
  2.    1953
  3.    1963
  4.    1973
 Discuss Question
Answer: Option B. -> 1953
Answer: (b).1953
Question 35. Presence of sickle cell anemia lowers incidence rate of which of following diseases?
  1.    small pox
  2.    chicken pox
  3.    malaria
  4.    polio
 Discuss Question
Answer: Option C. -> malaria
Answer: (c).malaria
Question 36. Guanine and adenine are _______________
  1.    purines
  2.    pyrimidines
  3.    nucleosides
  4.    gangliosides
 Discuss Question
Answer: Option A. -> purines
Answer: (a).purines
Question 37. Which of the following was discovered by Chargaff’s experiment in 1950?
  1.    base composition
  2.    base stacking
  3.    gene morphology
  4.    chromosome morphology
 Discuss Question
Answer: Option A. -> base composition
Answer: (a).base composition
Question 38. Who suggested that DNA composed of three nucleotide strands?
  1.    Linus Pauling
  2.    Rosalind Franklin
  3.    Maurice Wilkins
  4.    James Watson
 Discuss Question
Answer: Option A. -> Linus Pauling
Answer: (a).Linus Pauling
Question 39. The helical nature of DNA was revealed by the work of ______________
  1.    Rosalind Franklin
  2.    Francis Crick
  3.    Louis Pasteur
  4.    Frederick Sanger
 Discuss Question
Answer: Option A. -> Rosalind Franklin
Answer: (a).Rosalind Franklin
Question 40. A nucleotide has a non-polarized structure.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0