MCQ on Genetics and Plant Breeding for various Agriculture Exams Part - 3

 

1) Independent assortment of maternal & parental chromosomes occur during

A. Prophase I
B. Metaphase I
C. Anaphase II
D. Telophase II

2) A mechanism that can cause a gene to move from one linkage group to another is called as
A. Translocation
B. Inversion
C. Crossing over
D. Duplication

3) Which of the following produces change in the karyotype?
A. Symmetrical pericentric inversion
B. Paracentric inversion
C. Reciprocal translocation
D. Base pair substitution

4) Which of the following events takes place in meiosis II but not in meiosis I?
A. Crossing over
B. Contraction of chromosomes
C. Separation of homologous chromosomes
D. Separation of chromatids

5) Cytoplasmic effects if any can be known in case of
A. Full diallel
B. Half diallel
C. Partial diallel
D. Fractional diallel

6) In Line x Tester analysis, the GCA variance and SCA variance are calculated based on
A. Correlation and regression coefficients between half sibs and full sibs
B. Variances between half sibs and full sibs
C. Covariances and Variances between half sibs
D. Covariances between half sibs and full sibs

7) What is the portion of phenotypic value transmitted to its progeny in a random mating population
A. Genotypic value
B. Interaction deviation
C. Dominance deviation
D. Breeding value

8) The commonly used breeding method for transfer of cytoplasmic male sterility is
A. SSD
B. Pedigree
C. Bulk
D. Backcross

9) The first intra-hirsutum cotton hybrid released in India was
A. H6
B. H4
C. DCH32
D. NHH44

10) Color blindness in humans is caused by recessive gene located on

a) Y chromosome

b) X and Y chromosome

c) Autosomes

d) X-chromosome