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Biology-Prev.Year Repeated Questions
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Question-1
Initiation codon of protein synthesis (in eukaryotes) is
(A)
GUA
(B)
GCA
(C)
CCA
(D)
AUG
Question-2
The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA
(A)
transversion
(B)
transcription
(C)
translation
(D)
translocation
Question-3
Which of the following reunites the exon segments after RNA splicing
(A)
RNA polymerase
(B)
RNA primase
(C)
RNA ligase
(D)
RNA proteoses
Question-4
Haploids are able to express both recessive and dominant alleles/mutations because there are
(A)
many alleles for each gene
(B)
two alleles for each gene
(C)
only one allele for each gene in the individual
(D)
only one allele in a gene.
Question-5
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-6
Each chromosome at the anaphase stage of a bone marrow cell in our body has
(A)
two chromatids
(B)
several chromatids
(C)
no chromatids
(D)
only one chromatid.
Question-7
Which of the following occurs more than one and less than five in a chromosome?
(A)
chromatid
(B)
chromosome
(C)
centromere
(D)
telomere
Question-8
Because most of the amino acids are represented by more than one codon, the genetic code is
(A)
overlapping
(B)
wobbling
(C)
degenerate
(D)
generate
Question-9
The process of translation is
(A)
ribosome synthesis
(B)
protein synthesis
(C)
DNA synthesis
(D)
RNA synthesis
Question-10
Escherichia coli
fully labelled with
15
N is allowed to grow in
14
N medium. The two strands of DNA molecule of the first generation bacteria have
(A)
different density and do not resemble parent
DNA
(B)
different density but resemble parent DNA
(C)
same density and resemble parent DNA
(D)
same density but do not resemble parent DNA.
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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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