Animal Biotechnology Chromosomes

Question: Incase of inversion when the inverted segment of chromosome includes centromere, it is known as
[A].

paracentric inversion

[B].

double inversion

[C].

inverted inversion

[D].

pericentric inversion

Answer: Option D

Explanation:

No answer description available for this question.

Question: A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of
[A].

translocation heterozygote

[B].

deficiency

[C].

haploid organism

[D].

duplication

Answer: Option A

Explanation:

No answer description available for this question.

Question: Raphanobrassica is a classical example of
[A].

aneuploidy

[B].

nullisomy

[C].

allopolyploidy

[D].

None of the above

Answer: Option C

Explanation:

No answer description available for this question.

Question: 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
[A].

pericentric inversion

[B].

paracentric inversion

[C].

double inversion

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Hairy wing character of Drosophila is due to
[A].

duplication in region of chromosome

[B].

deletion in region of chromosome

[C].

due to presence of additional X-chromosome

[D].

due to a point mutation

Answer: Option A

Explanation:

No answer description available for this question.

Question: Bar eye character of Drosophila is due to
[A].

duplication in region of 16A of X chromosome

[B].

deletion in region of 16A of X chromosome

[C].

due to presence of additional X-chromosome

[D].

due to a point mutation in eye-locus

Answer: Option A

Explanation:

No answer description available for this question.

Question: Exchange of segments between non homologous chromosomes is best known as
[A].

translation

[B].

translocation

[C].

recombination

[D].

crossing over

Answer: Option B

Explanation:

No answer description available for this question.

Question: A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as
[A].

zymogram

[B].

chromogram

[C].

idiogram

[D].

karyogram

Answer: Option C

Explanation:

No answer description available for this question.

Question: The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as
[A].

penetrance

[B].

expressivity

[C].

inheritance strength

[D].

environmental influence

Answer: Option B

Explanation:

No answer description available for this question.

Question: The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as
[A].

penetrance

[B].

expressivity

[C].

inheritance percent

[D].

environmental influence

Answer: Option A

Explanation:

No answer description available for this question.