Short Answer TypeIn a cross between two tall pea plants some of the off-springs produced were dwarf. Show with the help of Punnett square how this is possible.
A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, on return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it?
Write the function of adenosine deaminase enzyme. State the cause of ADA deficiency in humans. Mention a possible permanent cure for ADA deficiency patient.
(a) Mention the difference in the mode of action of exonuclease and endonuclease.
(b)How does restriction endonuclease function?Explain why very small animals are rarely found in polar region.
Small animals tend to lose more heat when it is cold outside as they have large surface area with respect to volume. They have to expend much energy to generate heat through metabolism and it would be difficult for them to survive. Thus they are rarely found in polar region.
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
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