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Biology-Prev.Year Repeated Questions
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Question-1
Genes for cytoplasmic male sterility in plants are generally located in
(A)
chloroplast genome
(B)
mitochondrial genome
(C)
nuclear genome
(D)
cytosol
Question-2
When a certain character is inherited only through female parent, it probably represents
(A)
multiple plastid inheritance
(B)
cytoplasmic inheritance
(C)
incomplete dominance
(D)
mendelian nuclear inheritance.
Question-3
Nucleotide arrangement in DNA can be seen by
(A)
X-ray crystallography
(B)
electron microscope
(C)
ultracentrifuge
(D)
light microscope
Question-4
The point, at which polytene chromosome appear to be attached together, is called
(A)
centromere
(B)
chromomere
(C)
chromocentre
(D)
centriole
Question-5
Mutations used in agriculture are commonly
(A)
induced
(B)
spontaneous
(C)
lethal
(D)
recessive and lethal
Question-6
Genetic code consists of
(A)
adenine and guanine
(B)
cytosine and uracil
(C)
cytosine and guanine
(D)
all the above
Question-7
Bateson used the terms coupling and repulsion for linkage and crossing over. Name the correct parental of coupling type alongwith its cross over or repulsion
(A)
coupling AABB, aabb; Repulsion AABB, aabb
(B)
coupling AAbb, aaBB; Repulsion AaBb, aabb
(C)
coupling aaBB, aabb; Repulsion AABB, aabb
(D)
coupling AABB. aabb: Repulsion AAbb,
aaBB.
Question-8
A DNA with unequal nitrogen bases would most probably be
(A)
single stranded
(B)
double stranded
(C)
triple stranded
(D)
four stranded.
Question-9
The polytene chromosomes were discovered for the first time in
(A)
Drosophila
(B)
Musca domestica
(C)
Chironomus
(D)
Musca nebula
Question-10
The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA
(A)
transversion
(B)
transcription
(C)
translation
(D)
translocation
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Plus 2 Biology Science
CBSE
Practice in Related Chapters
Plant Reproduction
Animal Tissue
Kingdom Monera
Plant Kingdom
Biological Classification
General Biology
Respiratory System
Digestive System And Nutrition
Circulatory System and Immunity
Plant Morphology
Plant Anatomy
Cell Reproduction
Human Genetics & Genetic Disorders
Mendelian & Postmendelian Genetics
Genes & Chromosomes
Biomolecules
Enzymes
Cell Respiration
Cell Respiration
Kingdom Fungi
Aging And Death
Common Human Diseases
Evolution
Drug And Addiction
Reproduction And Embryonic Development
Endocrine System
Excretion And Osmoregulation
Nervous System & Sense Organs
Musculo-Skeletal System
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