Give the applications of DNA fingerprinting technique.
Concept: DNA Fingerprinting Technique
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
Describe the structure of a nucleosome.
Concept: Packaging of DNA Helix
Explain the carbon cycle with the help of a simplified model.
Concept: Nutrient Cycling
Explain sex determination in human beings.
Concept: Sex Determination
Construct an age pyramid which reflects an expanding growth status of human population.
Concept: Population
What is ecological succession?
Concept: Ecological Succession
Define organic evolution.
Concept: Origin of Life (Theories)
Distinguish between ape and man.
Concept: Human Evolution
Name the causative organism and preventive measures for Typhoid
Concept: Disease
Give the importance/significance of transgenic animals.
Concept: Commercial Applications of Biotechnology
Define the following term and give one example for each:
Commensalism
Concept: Population Interactions
Sketch and label the structure of Malpighian body.
Concept: Regulation of Kidney Function
What is double fertilisation? Describe the process in brief.
Concept: Double Fertilization in Plants
With the help of a neat, labelled diagram describe the human male reproductive system.
Concept: Human Reproductive System > Male Reproductive System
What is spermatogenesis? Briefly describe the process of spermatogenesis.
Concept: Gametogenesis in Animal
Describe the T.S. of human testis
Concept: Human Reproductive System > Male Reproductive System
Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
Concept: Sex Determination
Explain the mechanism of sex determination in birds.
Concept: Sex Determination
_______ enzymes are used as biological scissors in r-DNA technology.
(A) Restriction endonucleases
(B) DNA ligases
(C) DNA polymerases
(D) Reverse transcriptases
Concept: DNA Replication
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