Class 12 VBQs Biology Evolution

Very Short Answer Type Questions Question. Why are analogous structures, a result of convergent evolution ?Answer : Analogous structures are a result of convergent evolution because they are not anatomically similar structures though they perform similar functions. Detailed Answer :Analogous structures are said to be the result of convergent evolution because, though they perform a similar function […]

Continue Reading

Class 12 VBQs Biology Molecular Basis of Inheritance

Very Short Answer Type Questions Question. Mention the contribution of genetic maps in human genome project. Answer : Sequencing of genes, DNA finger printing, tracing human history, chromosomal location for disease associated sequences. Question. Mention the role of the codons AUG and UGA during protein synthesis.Answer : AUG – codes for methionine / initiation codon.UGA – termination codon / stop codon.  Short […]

Continue Reading

Class 12 VBQs Biology Principles of Inheritance and Variation

Short Answer Type Questions Question. Explain the laws that Mendel derived from his monohybrid crosses.Answer : Law of Dominance, states that factors that control characters occur in pairs and in dissimilar pair one factor dominates (expresses itself) whereas the other recessive factor does not express in the presence of the dominant one.Law of Segregation, states that during […]

Continue Reading

Class 12 VBQs Biology Sexual Reproduction in Flowering Plants

Very Short Answer Type Questions Question. Explain the process of pollination in Vallisneria.Answer : The female flower reaches the surface of water by long stalk, male flower releases the pollen grains on surface of water, pollen grains are carried by water currents, some of them reach the stigma and achieve pollination.  Question. What is pollen–pistil interaction and how […]

Continue Reading

VBQs For Class 12 Biology

Chapter 1 Reproduction in Organisms Chapter 2 Sexual Reproduction in Flowering Plants Chapter 3 Human Reproduction Chapter 4 Reproductive Health Chapter 5 Principles of Inheritance and Variation Chapter 6 Molecular Basis of Inheritance Chapter 7 Evolution Chapter 8 Human Health and Diseases Chapter 9 Strategies for Enhancement in Food Production Chapter 10 Microbes in Human […]

Continue Reading