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Animal Biotechnology Chromosomes

Animal Biotechnology Chromosomes
Which of the following denotes a pair of contrasting characters?

Alleles
Genotype
Homozygous
Phenotype

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Animal Biotechnology Chromosomes
Hairy wing character of Drosophila is due to

due to a point mutation
duplication in region of chromosome
due to presence of additional X-chromosome
deletion in region of chromosome

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Animal Biotechnology Chromosomes
A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as

chromogram
zymogram
karyogram
idiogram

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Animal Biotechnology Chromosomes
In an organism, the chromosome number is maintained constant because of

synapsis
DNA duplication
independent assortment
crossing over

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Animal Biotechnology Chromosomes
Which of the following is correct when a character shows continuous variation assuming a normal distribution?

It is governed by many genes with small cumulative effect
It is not controlled genetically
Many of the variation is due to fluctuation of climate
None of these

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Animal Biotechnology Chromosomes
How does dosage compensation in Drosophila occur?

X inactivation in females
Hypotranscription of female X chromosome
Chimerism
Hypertranscription of male X chromosome

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