Chromosome and DNA — Biology MCQs (Class 12)
Free chapter-wise Biology MCQs with answers for MDCAT, FSc and entry tests.
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#33 The condtion in which a zygote contains three copies of a particular chromosome as a result of non-disjunction is called?
A) Trisomy
B) Monosomy
C) Triploidy
D) Monoploidy
#34 The term chromosome was proposed by
A) Walther
B) Waldeyer
C) Sutton
D) Morgan
#35 Penicillium, a fungus, has how many pairs of chromosomes?
A) 1
B) 2
C) 3
D) 500
#36 Wheat is
A) Diploid
B) Triploid
C) Tetraploid
D) Hexaploid
#37 Nucleosome string thickness is
A) 10nm
B) 30nm
C) 200nm
D) 700nm
#38 Pangenesis theory about inheritance was proposed by
A) Waldeyer
B) Darwin
C) Sutton
D) Walther
#39 The term gene was introduced by
A) Mendel
B) William
C) Wilhelm
D) De Vries
#40 Hershey and chase used which one of the following organisms to prove DNA is the hereditary material?
A) Bacteria
B) Bacteriophage
C) Protozoa
D) None of these
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