What is biopiracy?
Concept: Ethical Issues
Give the applications of DNA fingerprinting technique.
Concept: DNA Fingerprinting Technique
Differentiate between Parthenocarpy and Parthenogenesis. Give one example of each.
Concept: Introduction of Sexual Reproduction
Describe any two devices in a flowering plant which prevent both autogamy and geitonogamy.
Concept: Double Fertilization in Plants
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions
(a) Acrosome
(b) Nucleus
(c) Middle piece
Concept: Gametogenesis in Animal
Medically it is advised to all young mothers that breastfeeding is the best for their newborn babies. Do you agree? Give reasons in support of your answer.
Concept: Pregnancy and Embryonic Development
Explain menstrual cycle in human females.
Concept: Menstrual Cycle (Ovarian Cycle)
How can the scientific understanding of the menstrual cycle of human females help as a contraceptive measure?
Concept: Menstrual Cycle (Ovarian Cycle)
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
Concept: Sex Determination > Introduction of Sex Determination
Write the scientific name of the organism Thomas Hunt Morgan and his colleagues worked with for their experiments. Explain the correlation between linkage and recombination with respect to genes as studied by them.
Concept: Linkage and Crossing Over
How did Sturtevant explain gene mapping while working with Morgan?
Concept: Linkage and Crossing Over
Write the dual purpose served by Deoxyribonucleoside triphosphates in the polymerisation.
Concept: Structure of Nucleotide
Expand VNTR and describe its role in DNA fingerprinting.
Concept: DNA Fingerprinting Technique
State the 'Central dogma' as proposed by Francis Crick. Are there any exceptions to it? Support your answer with a reason and an example.
Concept: Search for Genetic Material > Introduction of Search for Genetic Material
Explain how the biochemical characterisation (nature) of 'Transforming Principle' was determined, which was not defined from Griffth's experiments.
Concept: Search for Genetic Material > Introduction of Search for Genetic Material
Write the names of the following:
A 15 mya primate that was ape-like
Concept: Human Evolution
Write the names of the following:
A 2 mya primate that lived in East African grasslands
Concept: Human Evolution
With the help of an algebraic equation, how did Hardy-Weinberg explain that in a given population the frequency of occurrence of alleles of a gene is supposed to remain the same through generations?
Concept: Hardy Weinberg’s Principle
Differentiate between analogous and homologous structures.
Concept: Evidence of Organic Evolution
How do cytokine barriers provide innate immunity in humans?
Concept: Immunity
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