ANIMAL BIOTECHNOLOGY CHROMOSOMES QUIZ

Which of the following denotes a pair of contrasting characters?

Homozygous

Phenotype

Alleles

Genotype

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

3:1:1:3

9:3:3:1

1:1:1:1

1:2:2:1

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Transmission of a gene from male parent to female child to male grand child is known as

maternal inheritance

quantitative inheritance

criss-cross inheritance

holandric inheritance

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Bar eye character of Drosophila is due to

duplication in region of 16A of X chromosome

due to presence of additional X-chromosome

deletion in region of 16A of X chromosome

due to a point mutation in eye-locus

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Exchange of segments between non homologous chromosomes is best known as

translocation

recombination

translation

crossing over

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If two genes show 50% recombination

they are on same chromosome but far apart

they are on different chromosomes

they are closely located on the same chromosome

both (a) and (b)

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

18

16

17

20

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

a physical map

a genetic map

a cloning map

none of these

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The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as

penetrance

inheritance percent

environmental influence

expressivity

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

idiogram

chromogram

karyogram

zymogram

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