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Question 1 of 15
A crossing was performed between the genotypes DdEeFfgg and ddEeFfGg. Assuming that the allelic pairs of all genes assort independently, the proportion of progeny having the genotype ddeeffgg is expected to be ______________%.Correct
Question 2 of 15
Find the INCORRECT combination.Correct
Question 3 of 15
Which one of the following statements regarding G proteins is INCORRECT?Correct
Question 4 of 15
In animal cell culture, a CO2 enriched atmosphere in the incubator chamber is used to maintain the culture pH between 6.9 and 7.4. Which one of the following statements is CORRECT?Correct
Question 5 of 15
Choose the CORRECT combination of True (T) and False (F) statements about microcarriers used in animal cell culture.
P. Higher cell densities can be achieved using microcarriers
Q. Microcarriers increase the surface area for cell growth
R. Microcarriers are used for both anchorage- and nonanchorage-dependent cells
S. Absence of surface charge on microcarriers enhances attachment of cellsCorrect
Question 6 of 15
Analysis of a hexapeptide using enzymatic cleavage reveals the following result:
Amino acid composition of the peptide is: 2R, A,V, S, Y
Trypsin digestion yields two fragments and the compositions are: (R, A, V) and (R, S, Y)
Chymotrypsin digestion yields two fragments and the compositions are: (A, R, V, Y) and (R, S)
Digestion with carboxypeptidase A yields no cleavage product.
Given: Trypsin cleaves at carboxyl side of R.
Chymotrypsin cleaves at carboxyl side of Y.
Carboxypeptidase A cleaves at amino side of the C-terminal amino acid (except R and K) of the peptide.
The correct amino acid sequence of the peptide isCorrect
Question 7 of 15
Which of the following complement proteins is the initiator of the membrane attack complex?Correct
Question 8 of 15
Levinthal’s paradox is related toCorrect
Question 9 of 15
Which one of the following is a second generation genetically engineered crop?Correct
Question 10 of 15
Based on the heavy chain which one of the following antibodies has multiple subtypes?Correct
Question 11 of 15
The cytokinetic organelle in plant cells isCorrect
Question 12 of 15
Anergy refers toCorrect
Question 13 of 15
ABO blood group antigens in humans are differentiated from each other on basis ofCorrect
Question 14 of 15
Which one of the following organism is used for the determination of phenol coefficient of a disinfectant?Correct
Question 15 of 15
Which one of the following Amino acids has the highest probability to be found on the surface of a typical globular protein in aqueous environment?Correct