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All India-2017 GBM-1 Compartment
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Q1 of 44 Page 1

Write the palindromic sequence that EcoRI recognises.

A palindromic sequence is a sequence made up of nucleic acids within double helix of DNA and/or RNA that is the same when read from 5' to 3' on one strand and 5' to 3' on the other, complementary, strand.

EcoRI recognises is:


5' —— GAATTC —— 3'


3' —— CTTAAG —— 5'


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25

(a) How are polygenic inheritance and multiple allelism different ? Explain with the help of an example each.

(b) List the criteria a chemical molecule must fulfil to be able to act as a genetic material.


OR


State the hypothesis proposed by Oparin and Haldane. How was it experimentally proved by S.L. Miller ? Explain.


26

What does an Ecological Pyramid indicate ? Explain the three different types of upright Pyramids in nature with the help of an example each.

OR


(a) Indiscriminate human activities such as alien species invasion, fragmentation and habitat loss have accelerated the loss of biodiversity. Justify by taking one example for each.


(b) State the importance of (i) IUCN Red data list and (ii) Hot spots in conservation of biodiversity.


2

Trace the route of Sporozoite of Plasmodium when it enters the human body through the bite of infected female Anopheles mosquito till its entry into the R.B.C.

5

Write one difference between binary fission and budding.

Questions · 44
All India-2017 GBM-1 Compartment
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