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Animal Biotechnology Chromosomes

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

Homozygous
Alleles
Genotype
Phenotype

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

All of these
centriole elongation
disruption of mitotic spindle
chromosome lagging

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

crossing over
DNA duplication
independent assortment
synapsis

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

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

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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

environmental influence
inheritance strength
penetrance
expressivity

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Animal Biotechnology Chromosomes
How many chromosomes are there in the budding yeast (S. cerevisiae)?

18
17
16
20

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