Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Evolution

One Word Answers

111. Mention the type of evolution that has brought the similarity as seen in potato tuber and sweet potato.

458 Views

Short Answer Type

112. Why are wings of a butterfly and of a bat are called analogous ?

292 Views

113.

State the Hardy-Weinberg principle.

575 Views

114. According to Hardy–Weinberg’s principle, the allele frequency of a population remains constant. How do you interpret the change of frequency of alleles in a population ?

640 Views

Multiple Choice Questions

115. Lamarck's theory of evolution is also called :
Survival of the fittest
Special creation theory
Inheritance of acquired characters
None of these.

Inheritance of acquired characters

171 Views

116. Cause of speciation is :

Random mating
Hybridization
Isolation
Migration

155 Views

117. Darwin's theory does not include :

Natural selection
Survival of the fittest
Evolution through inheritance
Struggle for existence.

230 Views

118. A bacterial culture is treated with streptomycin and a cast is made. A few columns are able to survive due to :

Selection
Adaptation
Induced mutation
Mimicry

207 Views

119. Darwin's theory states that :

Characters are acquired through inheritance
Nature selects species which can adapt
Species change morphologically with nature
Affect of environment on evolution.

162 Views

120. Hexaploid wheat developed through :

Hybridomas
Chromosome doubling
Hybridisation
Hybridisation and chromosome doubling

232 Views