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Animal Biotechnology Chromosomes

Animal Biotechnology Chromosomes
Exchange of segments between non homologous chromosomes is best known as

translocation
crossing over
recombination
translation

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

18
16
17
20

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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 physical map
none of these
a cloning map
a genetic map

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

Homozygous
Genotype
Alleles
Phenotype

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Animal Biotechnology Chromosomes
In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of

1:2:2:1
9:3:3:1
1:1:1:1
3:1:1:3

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Animal Biotechnology Chromosomes
How does dosage compensation in Drosophila occur?

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

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