General Science/Basic Science Genetics Mutations Part 1 Sample Test,Sample questions

Question:
10.Chromosomal aberration which involves two chromosomes is called

1.Duplication

2.Deletion

3.Translocation

4.Inversion


Question:
A mutation which brings about structural changes in a DNA molecule is known as

1.Somatic mutation

2.Spontaneous mutation

3.Point mutation

4.Duplication mutation


Question:
A number of duplication are reported in

1.Chlamydomonas

2.Fungi

3.Yeasts

4.Corn


Question:
Addition of one or more extra nucleotides into a gene results in

1.Insertion mutation

2.Deletion mutation

3.Substitution mutation

4.Chromosomal mutation


Question:
All the 4 chromosomes have interchanged segments in

1.Substitution

2.Reciprocal translocation

3.Heterozygous translocation

4.Insertion


Question:
Carcinogenesis and mutagenesis are caused due to

1.Changes in genes

2.Changes in Chromosomes

3.Damage to DNA

4.Damage to Chromosomes


Question:
Changed position of the genes in a chromosome is called

1.Sport

2.Allele

3.Cupid

4.Position effect


Question:
Changed position of the genes result in

1.Inversion

2.Translocation

3.Duplication

4.Deletion


Question:
Changes resulting in abnormal structure of one or more chromosomes are known as

1.Point mutation

2.gene mutation

3.Chromosomal aberrations

4.Substitution mutations


Question:
Cistron and recon are the small units of

1.Chromosome

2.Chlorophyll

3.Gene

4.Somatic cell


Question:
Deletion mutation causes lethal effect inYeast

1.Yeast

2.Antirrhinum

3.Mirabilis

4.Cicer


Question:
Early maturing disease resistant and richly proteinaceous dwarf variety of wheat is the product of

1.Heredity

2.Mutation

3.Evolution

4.Variation


Question:
emi-sterility in pollen and ovule is caused by

1.Duplication

2.Deletion

3.Translocation

4.Insertion


Question:
Illegitimate crossing over is

1.Deletion

2.Addition

3.Substitution

4.Translocation


Question:
In chromosome rearrangement of genes occur in

1.Deletion

2.Chromosomal mutation

3.Inversion

4.Translocation


Question:
In Inversion Mutation the broken segment of the chromosome joins after rotation of

1.60 degrees

2.120 degrees

3.240 degrees

4.180 degrees


Question:
In peas the type of chromosomal aberration reported is

1.Deletion

2.Substitution

3.Duplication

4.Translocation


Question:
Insertion is classified under

1.Gene mutation

2.Chromosomal mutation

3.Genomic mutation

4.Somatic mutation


Question:
Insertion mutation is also known as

1.Somatic mutation

2.Chromosomal mutation

3.Addition mutation

4.Substitution mutation


Question:
Interchange of segments between non-homologous chromosomes is called

1.Deletion

2.Duplication

3.Substitution

4.None of them


Question:
Local phenotypic changes in the organs are produced by

1.Somatic mutation

2.Gene mutation

3.Point mutation

4.Lethal mutation


Question:
Loss of a segment of a chromosome is called

1.Deletion

2.Addition

3.Insertion

4.Substitution


Question:
Many improved cultivated varieties of plants are the products of

1.Heredity

2.Variation

3.Mutation

4.Crossing over


Question:
Mutations play an important role in

1.Evolution

2.Ecology

3.Physiology

4.Embryology


Question:
Mutations which occur in somatic or body cells are

1.Point mutation

2.Gene mutation

3.Lethal mutation

4.Somatic mutation


Question:
Non-heritable mutations are

1.Point mutation

2.Gene mutation

3.Lethal mutation

4.Somatic mutation


Question:
One member of each chromosomal pair is normal and the other member is with interchanged segments in

1.Heterozygous translocation

2.Homozygous translocation

3.Reciprocal translocation

4.Insertion


Question:
Origin of new species (or genes) is the result of

1.Heredity

2.Variation

3.Linkage

4.Mutation


Question:
Position effect is also associated with

1.Deficiency

2.Duplication

3.Translocation

4.Substitution


Question:
Position effects are observed in

1.Maize

2.Neurospora

3.Fungi

4.Yeast


Question:
Repetition of certain genes results in28.

1.Deletion

2.Duplication

3.Translocation

4.Substitution


Question:
Some heritable diseases and many instances of cancer in human beings are the results

1.Heredity

2.Variation

3.Mutation

4.Epistasis


Question:
Sometimes the survival of the organism is affected by

1.Small duplication

2.Large duplication

3.Small addition

4.Large addition


Question:
The biosynthetic pathways of amino acids through enzymes are under the

1.Hereditory control

2.Genetic control

3.Protein control

4.Vitamin control


Question:
The carriers of genes are

1.Mitochondria

2.Golgi bodies

3.Chromosomes

4.Lysosomes


Question:
The dwarf variety of paddy with many tillers and long grains are the products of

1.Natural breeding

2.Artificial breeding

3.Mutation breeding

4.Cross breeding


Question:
The fine structure of the genes is known by the study of mutant strains of Viruses

1.Bacteria

2.Fungi

3.Yeast

4.Viruses


Question:
The genes are arranged in linear order in

1.Chlorophyll

2.Mitochondria

3.Golgi bodies

4.Chromosomes


Question:
The heritable mutations occurring in gametes are

1.Point mutation

2.Somatic mutations

3.Chromosomal aberrations

4.Lethal mutations


Question:
The mutant funguns which produces more antibiotic

1.Neurospora

2.Penicillium

3.Yeast

4.Oat


Question:
The mutant strains of this fungus lose the ability to synthesize certain amino acids

1.Neurospora

2.Penicillium

3.Yeast

4.Chlamydomonas


Question:
The mutation that results in the change of gene order from a b c d e f g h to a b f e d c g h is called

1.Deficiency

2.Translocation

3.Duplication

4.Inversion


Question:
The order of genes is reserved in a segment of a chromosome in

1.Inversion

2.Translocation

3.Duplication

4.Deletion


Question:
The production of different varieties in many plants is achieved by

1.Deletion

2.Translocation

3.Substitution

4.Duplication


Question:
The small unit of gene isMuton

1.Muton

2.Mutant

3.Mutagen

4.Sport


Question:
The structure of the genes remain unaltered in

1.Point mutation

2.Gene mutation

3.Chromosomal aberration

4.Substitution


Question:
The type of chromosomal aberration which changes the phenotype of an organism is

1.Deficiency

2.Duplication

3.Inversion

4.Translocation


Question:
The type of mutation which plays an important role in species differentiation is

1.Deletion

2.Addition

3.Duplication

4.Translocation


Question:
The varieties observed by Hugo de Vries in Oenothera lamrckiana were causes by

1.Deletion

2.Translocation

3.Substitution

4.Duplication


Question:
When a segment of a chromosomes gets attached to a non-homologous chromosome in a new position it is called

1.translocation

2.deletion

3.inversion

4.duplication


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