ANIMAL BIOTECHNOLOGY CHROMOSOMES QUIZ

Diethyl stilbestrol (DES), a synthetic estrogen causes

All of these

chromosome lagging

disruption of mitotic spindle

centriole elongation

TRUE ANSWER : ?
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The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as

environmental influence

expressivity

penetrance

inheritance strength

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Raphanobrassica is a classical example of

aneuploidy

None of these

nullisomy

allopolyploidy

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

16

20

18

17

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If two genes show 50% recombination

they are closely located on the same chromosome

they are on same chromosome but far apart

both (a) and (b)

they are on different chromosomes

TRUE ANSWER : ?
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Hairy wing character of Drosophila is due to

due to presence of additional X-chromosome

due to a point mutation

duplication in region of chromosome

deletion in region of chromosome

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How many chromosomes are there in Caernorhabditis elegans?

3

9

12

6

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How does dosage compensation in Drosophila occur?

Hypertranscription of male X chromosome

Chimerism

Hypotranscription of female X chromosome

X inactivation in females

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Which of the following denotes a pair of contrasting characters?

Genotype

Phenotype

Homozygous

Alleles

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A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as

karyogram

chromogram

zymogram

idiogram

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YOUR ANSWER : ?

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