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A test cross is done to find out
(1) Fitness of an organism
(2) Genotype of a plant expressing dominant phenotype
(3) The suitable parents for a Mendelian Cross
(4) The hidden genotypic ratio of F2 phenotypes

The law of Segregation is based on the fact that 
(1) The alleles do not show any blending
(2) There is random fertilization
(3) Gametes are pure for the trait
(4) The zygotes are diploid

Which of the following codons has a dual role in the genetic code?
(1) AUG
(2) GUG
(3) CUG
(4) UUG
 

The formation of a new species through change in a single lineage is known as:

What is the correct order of oxyacids of phosphorous in terms of their acidic strength?
1. H₃PO₂ > H₃PO₃ > H₃PO₄
2. H₃PO₄ > H₃PO₃ > H₃PO₂
3. H₃PO₃ > H₃PO₂ > H₃PO₄
4. H₃PO₂ > H₃PO₄ > H₃PO₃

How many hydrate isomers are possible for the molecular formula CoCl₃,6H₂O?
1. One
2. Two
3. Three
4. Four

The magnetic field at center due to the orbital motion of the electron in the hydrogen atom is :
1.  12.5 tesla
2.  5 tesla
3.  24 tesla
4.  1 tesla

If all linear dimensions of an inductor are tripled, then self-inductance will become (keeping the total number of turns per unit length constant)
1.  3 times
2.  9 times
3.  27 times
4. 1/3 times

The direction of propagation of the electromagnetic wave is the same as that of (Here $\overrightarrow{E}$=electric field vector and $\overrightarrow{B}$=magnetic field vector):
1. $\overrightarrow{E}\times \overrightarrow{B}$
2. $\overrightarrow{B}\times \overrightarrow{E}$
3. $\overrightarrow{E}$
4. $\overrightarrow{B}$