1st Year Biology Chapter 12 Test12. Inheritance

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. The ABO blood group system was discovered by
   1. Watson
   2. Mendel
   3. Karl Landsteiner
   4. Morgan
2. The basic unit of heredity is
   1. Chromosome
   2. DNA
   3. Gene
   4. Nucleotide
3. Genes located on autosomes show
   1. Sex linkage
   2. Dominant linkage
   3. Recessive linkage
   4. Autosomal linkage
4. The offspring of a black and white parent in polygenic inheritance is called
   1. Mulatto
   2. Albino
   3. Hybrid
   4. Epistatic
5. Rh blood group system is encoded by three genes C, D and E which occupy tightly linked loci:
   1. Five
   2. Four
   3. Three
   4. Two
6. In Foxglove flower, dominant epistasis is shown by
   1. D gene
   2. H gene
   3. W gene
   4. A gene
7. The genes located on the Y chromosome are called
   1. X-linked genes
   2. Holandric genes
   3. Dominant genes
   4. Mutant genes
8. In the XY-XX type of sex determination, males are
   1. Heterogametic
   2. Homogametic
   3. Diploid
   4. Haploid
9. Traits controlled by more than one gene are called
   1. Monogenic traits
   2. Polygenic traits
   3. Co-dominant traits
   4. Multiple alleles
10. Phenomena of an allele of one gene suppressing the activity of allele of another gene is called:
    1. Dominance
    2. Epistasis
    3. Suppression
    4. Inactivation