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Animal Biotechnology Chromosomes

Animal Biotechnology Chromosomes
Exchange of segments between non homologous chromosomes is best known as

recombination
translation
translocation
crossing over

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Animal Biotechnology Chromosomes
Diethyl stilbestrol (DES), a synthetic estrogen causes

centriole elongation
chromosome lagging
disruption of mitotic spindle
All of these

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

Alleles
Homozygous
Genotype
Phenotype

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Animal Biotechnology Chromosomes
A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of

haploid organism
duplication
deficiency
translocation heterozygote

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Animal Biotechnology Chromosomes
If two genes show 50% recombination

they are closely located on the same chromosome
they are on different chromosomes
both (a) and (b)
they are on same chromosome but far apart

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Animal Biotechnology Chromosomes
Bar eye character of Drosophila is due to

due to presence of additional X-chromosome
deletion in region of 16A of X chromosome
duplication in region of 16A of X chromosome
due to a point mutation in eye-locus

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