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In Griffith experiment mice developed pneumonia when they were injected with:
Heat killed R-type bases
Heat killed S-type bacteria
R-type bacteria
Heat killed S-type becteria along with live R-type becteria
In eukaryotic mRNA molecule there are 90 nucleotide involved in translation process. What is the number of amino acid in the protein formed by this mRNA molecules?
29 Amino acids
30 Amino acids
45 Amico acids
90 Amino acids
Archaebacteria tolerate temperatures up to
67oC
40oC
10oC
120oC
According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal
Outlets
Vents
Apertures
Gaps
In man the vestigial organs are
Coccyx
Ear muscles
All a,b and c
Nictitating membrane
Gene pool consists of all alleles at all gene loci in all individuals of the
Family
Community
Clan
Population
If the amount of adenine in DNA of a bacterial cell is 36% of the total nitrogenous bases, what will be the amount of guanone in the DNA of a cell in next generations:
14%
28%
64%
36%
A chromosome with unequal length of its arm is called:
Metacantric
Sub metacentric
Telocentric
Acrocentric
In hershey & chase experiment, 32p labeled bacteriophages allowed to infect the becteria.During analysis 32 p activity wa detected:
In culture medium
On the surface of becterial cell
Both a and B
Inside the becteiral cell
In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the :
Bottom
Intermediate
Top
Top & intermediate
Evolutionary relationships among species are reflected in their
DNA and proteins
Inheritance
Emigration
Immigration
A general formula called the hard-Weinberg equation is used for calculating the frequencies of alleles and genotypes in populations at
Stability
Equilibrium
Poise
Balance
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