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Animal Biotechnology Chromosomes

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

disruption of mitotic spindle
centriole elongation
chromosome lagging
All of these

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Animal Biotechnology Chromosomes
An odd number of cross overs in inverted region will result into formation of a dicentric chromatid and acentric chromatid at anaphase I incase of

paracentric inversion
double inversion
pericentric inversion
none of these

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Animal Biotechnology Chromosomes
In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of

3:1:1:3
9:3:3:1
1:2:2:1
1:1:1:1

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

translation
recombination
crossing over
translocation

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

independent assortment
crossing over
DNA duplication
synapsis

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Animal Biotechnology Chromosomes
If two genes show 50% recombination

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

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