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Quiz 18
Mdcat-past-papers - SZABMU Quiz
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Board: SZABMU |
341. A general formula is derived by one of the following scientist for calculating the frequencies of alleles and genotypes in population at equilibrium:
Linnaeus
Darwin
Lamarck
Hardy weinberg
342. When humans purposefully apply selection pressure to populations, the process is known as:
Natural selection
Evolution
Artificial selection
Genetic Drift
343. The reduction of population size with some specific allele and genotype due to natural disaster is called:
Mutation
Bottle neck effect
Founder effect
Speciation
344. When humans purposefully apply selection pressure to populations, the process is known as:
Natural selection
Artificial selection
Evolution
Genetic drift
345. These are the genes which tend to be inherited together and do not assort independently
Linked gene
Dependent genes
Recombinant gene
Independent genes
346. The frequency of mutant gene in a population would be likely to be increased if
Gene were selectively advantageous
Gene were dominant
Population increase
Gene were Sex-linked
347. Two allelic genes at the same locus when expressed fully an individual it is considered as
Co-dominance
Complete dominance
Incomplete dominance
Epistasis
348. 10 pascal is equal to:
0.000098atm
1.98 atm
10.019kpa
4.014 psi
349. Which gas in the discharge tube has the highest e/m ratio?
Oxygen
Helium
Nitrogen
Hydrogen
350. If value of azimuthal quantum number is l then value of m will range from:
-1 to 1
-1 to 2
-1 to 3
-1 to 4
351. The dumb bell like orbitals can move in how many directions?
7
5
1
3
352. The relationship between quantum number n and l is
n = -l
n = l-2
l = n-1
n = l-2
353. Principal quantum number is represented by the symbol:
C
n
s
l
354. Shape of the sub shell is explained by which quantum number:
Principal quantum number
Azimuthal quantum number
Magnetic quantum number
spin quantum number
355. Which of the following will be filled first than 4p? :
4s
2p
3d
1s
356. The electronic configuration for degenerated orbitals is explained by:
Aufbau principle
n+ l rule
Hund's rule
Pauli exclusion principle
357. Maximum number of electrons which can be placed in one orbital is:
1
2
3
4
358. Which of the following has greatest difference of electronegativity?
HF
HCl
HBr
HI
359. Ionization energy decreases down the group because:
Shielding remains constant
Atomic radius remains constant
Proton number increases
Atomic radius increases
360. The force of attraction among H₂ molecules in solid H₂ are:
Hydrogen bonds
Covalent bonds
Coordinate covalent bonds
Van Der Waal's forces
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