The mineral component of soil consists of_________?
The mineral component of soil consists of_________?
A. Air
B. Water
C. both A and B
D. none of the above
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The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called________________?
The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called________________?A. Gene flow
B. Genetic drift
C. Gene frequency
D. None of the aboveVit. B6 is also called _________________________?
Vit. B6 is also called _________________________?A. Riboflavin
B. Niacin
C. Pyrodoxin
D. None of aboveAs a general rule interbreeding is possible between______________________?
As a general rule interbreeding is possible between______________________?A. Any two members of a Genus
B. Any two members of a Species
C. Any two members of a Family
D. Any two members of an orderWhen a goat shows all signs of pregnancy but not produce young one is called ____________________?
When a goat shows all signs of pregnancy but not produce young one is called ____________________?A. False pregnancy
B. Psevdo pregnancy
C. Not pregnant
D. None of aboveThe reason why mutations which are harmful do not eliminated from gene pool is that___________________?
The reason why mutations which are harmful do not eliminated from gene pool is that___________________?A. They are recessive and carried by heterozygous individuals
B. Genetic drift occurs because of a small population in to offsprings
C. Making possible reproduction in all types of environments
D. They have future survival valueThe smallest cell organelle so far is_____________________?
The smallest cell organelle so far is_____________________?A. Peroxisome
B. Spherosome
C. Ribosome
D. Lysosome