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Animal Biotechnology Chromosomes

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

Genotype
Phenotype
Alleles
Homozygous

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Animal Biotechnology Chromosomes
Bar eye character of Drosophila is due to

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

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Animal Biotechnology Chromosomes
Transmission of a gene from male parent to female child to male grand child is known as

holandric inheritance
maternal inheritance
quantitative inheritance
criss-cross inheritance

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Animal Biotechnology Chromosomes
If two genes show 50% recombination

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

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Animal Biotechnology Chromosomes
The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as

inheritance strength
expressivity
environmental influence
penetrance

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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

pericentric inversion
none of these
double inversion
paracentric inversion

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