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Animal Biotechnology Chromosomes

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

haploid organism
duplication
translocation heterozygote
deficiency

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Animal Biotechnology Chromosomes
Hairy wing character of Drosophila is due to

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

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Animal Biotechnology Chromosomes
The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as

environmental influence
inheritance percent
expressivity
penetrance

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Animal Biotechnology Chromosomes
Bar eye character of Drosophila is due to

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

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

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

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