MEDIUM
10th Tamil Nadu Board
IMPORTANT
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The miracle rice which saved millions of lives and celebrated its 50th birthday is_____.

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Important Questions on Breeding and Biotechnology

HARD
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 5
Which of the following is used to produce products useful to humans by biotechnology techniques?
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 6
We can cut the DNA with the help of 
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 7
rDNA is a 
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 8
DNA fingerprinting is based on the principle of identifying_____ sequences of DNA.
 
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 9
Organisms with modified endogenous gene or a foreign gene are also known as 
HARD
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 10
In a hexaploid wheat (2n = 6x = 42) the haploid (n) and the basic (x) number of chromosomes respectively are
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 3
_____is the chemical used for doubling the chromosomes.
 
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 20 - Breeding and Biotechnology>TEXTBOOK EVALUATION>Q 4
The scientific process which produces crop plants enriched with desirable nutrients is called_____.