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Animal Biotechnology Chromosomes

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

Phenotype
Homozygous
Alleles
Genotype

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

chromosome lagging
disruption of mitotic spindle
centriole elongation
All of these

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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
criss-cross inheritance
maternal inheritance
quantitative inheritance

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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

double inversion
pericentric inversion
none of these
paracentric inversion

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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

deficiency
haploid organism
duplication
translocation heterozygote

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Animal Biotechnology Chromosomes
How does dosage compensation in Drosophila occur?

Hypertranscription of male X chromosome
Chimerism
X inactivation in females
Hypotranscription of female X chromosome

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