List of practice Questions

Which of the following statements is not applicable to the mode of a dataset?

The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?

Which of the following statements are correct about the phenomenon of genetic drift?
A. It occurs in a small population.
B. It leads to the loss of genetic variation within population.
C. It doesn't change the allele frequency randomly.
D. It occurs in a large population.
Choose the most appropriate answer from the options given below:

The increase in the beak depth of Galápagos finches with a relative abundance of large seeds, is an example of

How many jaws are present in Aristotle's Lantern?

The technique to mark, release and recapture is a practical method for

Any species that have been accidentally or deliberately transferred from their usual habitat to a new habitat whose abiotic conditions are also suitable for them are known as:

The populations, showing relatively constant density around the carrying capacity of the environment, is called

Which one of the following statements is correct for Mollisol?

Match LIST-I with LIST-II
\begin{tabularx}{0.9\textwidth}{|l|X|l|X|} \hline \multicolumn{2}{|c|}{LIST-I} & \multicolumn{2}{c|}{LIST-II}
\multicolumn{2}{|c|}{Law/Principle/Gene interaction} & \multicolumn{2}{c|}{Genes distribution/Ratio}
\hline A. & Law of segregation & I. & 12:3:1
B. & Principle of independent assortment & II. & Genes are distributed without mixing.
C. & Complementary gene interaction & III. & Genes on different chromosomes are distributed independently during meiosis.
D. & Dominant epistasis & IV. & 9:7
\hline \end{tabularx}
Choose the most appropriate answer from the options given below:

Which of the following statements are true?
A. When two or more genes co-exist on the same chromosome, they may violate the principle of independent assortment during meiosis.
B. Positive interference occurs when the presence of one chiasma increases the possibility of another chiasma occurring in the immediate vicinity.
C. The proportion of crossovers never exceeds 50%.
D. The Chi-square test can be used for segregation ratios and detection of linkage.
Choose the most appropriate answer from the options given below:

Based on the threshold range, at the X/A ratio of 0.67, the sex of {Drosophila will be:}

In a population under Hardy Weinberg Equilibrium, out of a total of 592 people, 44 people were affected by a rare autosomal recessive disorder whereas the rest of the population was normal. How many individuals in this population have the heterozygous and homozygous dominant genotypes for this trait?

Match LIST-I with LIST-II
\begin{tabularx}{0.8\textwidth}{|l|X|l|X|} \hline \multicolumn{2}{|c|}{LIST-I} & \multicolumn{2}{c|}{LIST-II}
\multicolumn{2}{|c|}{Period} & \multicolumn{2}{c|}{Genra of horse}
\hline A. & Pleistocene & I. & Eohippus
B. & Eocene & II. & Mesohippus
C. & Miocene & III. & Equus
D. & Oligocene & IV. & Merychippus
\hline \end{tabularx}
Choose the most appropriate answer from the options given below:

Which of the following phenomena can lead to microevolution?
A. Natural Selection
B. Sexual Selection
C. Genetic Drift
Choose the most appropriate answer from the options given below:

Match LIST-I with LIST-II
\begin{tabularx}{0.8\textwidth}{|l|X|l|X|} \hline \multicolumn{2}{|c|}{LIST-I} & \multicolumn{2}{c|}{LIST-II}
\multicolumn{2}{|c|}{Type of cell in Porifera} & \multicolumn{2}{c|}{Functions}
\hline A. & Collar cells & I. & Line the sphincters
B. & Trophocytes & II. & Special nurse cells
C. & Pinacocytes & III. & Help to form spermatocyst
D. & Thesocytes & IV. & Food storage
\hline \end{tabularx}
Choose the most appropriate answer from the options given below:

In the life history and development of sea star, numerous larval forms are formed. Arrange them in the order of their occurrence:
A. Dipleurula
B. Branchiolaria
C. Bipinnaria
Choose the most appropriate answer from the options given below:

Which one of the following belongs to class-Diplopoda?

How many somatic cells are present in {C. elegans?}

How many different type of gametes can potentially be produced by an organism with the genotype aaBbccdd?

What is the difference between gynandromorphs and intersexes in {Drosophila?}

The approximate diameter of actin filaments is:

Match LIST-I with LIST-II
\begin{tabularx}{0.8\textwidth}{|l|X|l|X|} \hline \multicolumn{2}{|c|}{LIST-I} & \multicolumn{2}{c|}{LIST-II}
\multicolumn{2}{|c|}{Mitochondrial Compartments} & \multicolumn{2}{c|}{Enzymes present}
\hline A. & Matrix & I. & ATP synthetase
B. & Inner membrane & II. & Monoamine oxidase
C. & Space between inner and outer membranes & III. & Citrate synthetase
D. & Outer membrane & IV. & Adenylate kinase
\hline \end{tabularx}
Choose the most appropriate answer from the options given below:

Which of these are executioner caspases?
A. Caspase 3
B. Caspase 6
C. Caspase 8
D. Caspase 5
Choose the most appropriate answer from the options given below:

Which larval form of {Fasciola hepatica has a motile tail?}