List of practice Questions

Which one of the following groups of animal is devoid of gill slits?
In homosporous pteridophyte species, the development of gametophyte is
More recently discovered plant hormone, Jasmonates, play an important role both in plant defense and development, is derived from which fatty acid?
Plants can assimilate only two inorganic forms of nitrogen. These are:
A. Nitrite (NO\(_2^-\))
B. Ammonium (NH\(_4^+\))
C. Nitric acid (HNO\(_3\))
D. Nitrate (NO\(_3^-\))
Choose the correct answer from the options given below:
Lenticels permit the:
The membrane potential of a resting neuron is:
Which one of the following amino acids is involved in synthesis of hormone epinephrine in humans?
The symmetry in which a flower can be divided into two equal and similar halves by only one vertical division is
In general F\(_2\), F\(_3\) and the subsequent generations do not show segregation for a cytoplasmically inherited trait. This is because
Which of the given factors can affect frequency in Mendelian population?
A. Migration
B. Mutation
C. Selection
D. Random shift
Choose the correct answer from the options given below:
In 1963, several varieties such as Sonalika and Kalyan Sona were introduced all over the wheat-growing belt in India. They were
Among the following species of bryophytes, which is not an example of mosses?
Who among the following is known as the father of Indian paleobotany?
Choose the correct sequence of different regions on a typical eukaryotic DNA segment when we go from the upstream to the downstream of a transcription start point.
A. Initiation site
B. CAAT box
C. Enhancer
D. TATA box
Choose the correct answer from the options given below:
Which one of the following acid is hydrophobic with non polar side chain?
Choose the correct order of steps involved in nucleotide excision repair of damaged bases as their occur.
A. A fresh burst of DNA synthesis
B. Cuts are made on both the 3' side and the 5' side of the damaged area
C. The DNA is unwound producing a "bubble".
D. A DNA ligase covalent binds the fresh piece into the backbone.
Choose the correct answer from the options given below:
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
Frequency of recombination between linked genes in Drosophila is affected by
A. Distance between genes
B. Sex of heterozygotes for linked genes
C. Age of female
D. Temperature
Choose the correct answer from the options given below:
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:
The plants bloom when the light duration is less than 12 hours per day are know as.
A rock body through which ground water flows is called
Match LIST-I with LIST-II
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The left-handed helix, Z-DNA is 18 \AA \ (1.8 nm) in diameter which contains _____________________.
Choose the correct sequence of events as they occur during a bacterial transcription
A. RNA polymerase sigma (\(\sigma\)) subunits recognizes promoters
B. DNA double helix unwind
C. Sigma (\(\sigma\)) subunit dissociates from the holoenzyme
D. Formation of hairpin secondary structure
Choose the correct answer from the options given below:
Choose the correct answer regarding the translation of mRNA to proteins when AUG is the start codon and codes for methionine.