MCQ on Genetics and Plant Breeding for various Agriculture Exams Part - 6

1)  Bar eye gene in Drosophila is an example for
A. Deletion
B. Duplication
C. Inversion
D. Translocation

2) In a Karyotype ______ chromosomes are represented first
A. Sub-metacentric
B. Telocentric
C. Metacentric
D. Sex-chromosomes

3) The detection of smaller number of QTLs due to small population is called
A. Beavis effect
B. Founder effect
C. Bin mapping
D. Binary image

4)  Pseudo-autosomal inheritance is expressed by genes located on
A. X-Chromosome
B. Y-Chromosome
C. X and Y Chromosomes
D. Autosomes

5) Chemicals that enhance uptake of DNA by plant protoplasts
A. SDS
B. Polyvinyl pyrolidine
C. Na OH
D. PEG

6) Correlation coefficient ‘r’ value ranges between
A. -1 to 0
B. +1 and 0
C. -1 and +1
D. 0 and 0.5

7)  A male sterile line of KRH-1 is
A. IR 58025 A
B. IT 58025 B
C. KMR-3
D. IR-9124

8)  In DNA repeats, the indirect or reverse repeats of ACCG is
A. GCCA
B. TGGC
C. ACCG’
D. CGGT

9) The temperature at which 50 per cent of the DNA duplexes would dissociate into separate strands.
A. Denaturation
B. Melting temperature
C. Dissociation
D. C value

10)  More men suffer from colour blindness than women because ……
A. Men are hemizygous and one defective gene is enough to make them colour blind
B. The colour blind gene is carried on the ‘Y’ chromosome
C. The male sex hormone testosterone causes the disease
D. Women are more resistant to disease than men