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Animal Biotechnology Chromosomes

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

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

disruption of mitotic spindle
chromosome lagging
All of these
centriole elongation

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Animal Biotechnology Chromosomes
Incase of inversion when the inverted segment of chromosome includes centromere, it is known as

double inversion
inverted inversion
pericentric inversion
paracentric inversion

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Animal Biotechnology Chromosomes
If two genes show 50% recombination

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

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

translation
crossing over
recombination
translocation

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

DNA duplication
independent assortment
synapsis
crossing over

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