Ejaz H. Abbasi

Ejaz H. Abbasi

Solved Exercise, Bio-12, Ch-26

SOME MAJOR ECOSYSTEMS FILL IN THE BLANKS Q.01: Fill in the blanks: (i) Water is slower to heat and ______ than air. (cool) (ii) The distribution of life in lakes depends on access to ______, and to place for attachment.…

Solved Exercise, Bio-12, Ch-25

ECOSYSTEM FILL IN THE BLANKS Q.01: Fill in the blanks: (i) A group of similar organisms living together in space and time is called _______. (population) (ii) Organisms which can synthesize their own food are called _______. (producers) (iii) Animals,…

Solved Exercise, Bio-12, Ch-24

EVOLUTION FILL IN THE BLANKS Q.01: Fill in the blanks: (i) Archaebacteria can tolerate high temperature up to _______. (120oC) (ii) The first eukaryote appeared about _______ years ago. (1.5 billion) (iii) _______ presented the theory of the origin of…

Solved Exercise, Bio-12, Ch-23

BIOTECHNOLOGY FILL IN THE BLANKS Q.01: Fill in the blanks. (i) The use of polymerase chain reaction (PCR) creates a _______ of copies in a laboratory test tube. (lesser number) (ii) _______ free living organisms in the environment that have…

Solved Exercise, Bio-12, Ch-22

VARIATION & GENETICS FILL IN THE BLANKS Q.01: Fill in the blanks: (i) ______ is the basic unit of biological information. (gene) (ii) A sudden change in the structure of a gene is called ______. (mutation) (iii) _______ is the…

Solved Exercise, Bio-12, Ch-21

CELL CYCLE FILL IN THE BLANKS Q.01: Fill in the blanks: (i) Mongolism is also known as _______. (Down’s syndrome) (ii) During _______, homologous chromosomes get close to each other. (leptotene) (iii) _______ phase precedes G2 phase. (S) (i) Polar…

Solved Exercise, Bio-12, Ch-20

CHROMOSOME & DNA FILL IN THE BLANKS Q.01: Fill in the blanks: (i) Particular tRNA molecules become attached to specific amino acids through the action of activating enzymes called _______. (aminoacyl-tRNA synthetase) (ii) _______ is the transfer of genetic material…