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Animal Biotechnology Chromosomes

Animal Biotechnology Chromosomes
How many chromosomes are there in Caernorhabditis elegans?

6
3
9
12

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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
none of these
double inversion
pericentric inversion

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Animal Biotechnology Chromosomes
A map of chromosomes that utilizes cloned and sequenced DNA fragments rather than genetic markers is known as

a genetic map
a physical map
none of these
a cloning map

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Animal Biotechnology Chromosomes
Bar eye character of Drosophila is due to

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

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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
translocation heterozygote
deficiency

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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

expressivity
penetrance
environmental influence
inheritance strength

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