September 2023

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]

Q. Determine the correctness or otherwise of the following Assertion [a] and the Reason [r] Assertion: Ab initio gene finding algorithms that predict protein coding genes in eukaryotic genomes are not completely accurate. Reason: Eukaryotic splice sites are difficult to predict. (A) Both [a] and [r] are false (B) [a] is true but [r] is […]

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Which of the following statements, support the view that elaborate sexual reproductive pro- cess appeared much later in the organic evolution?

Which of the following statements, support the view that elaborate sexual reproductive pro- cess appeared much later in the organic evolution?

Which of the following statements, support the view that elaborate sexual reproductive pro- cess appeared much later in the organic evolution?i. Lower groups of organisms have simpler body design.ii. Asexual reproduction is common in lower groups.iii. Asexual reproduction is common in higher groups of organisms.iv. The high incidence of sexual reproduction in angiosperms and vertebrates.

Which of the following statements, support the view that elaborate sexual reproductive pro- cess appeared much later in the organic evolution? Read More »

In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation

In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation

Q. In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is NOT encoded by the host plant genes? (A) Production of inducers that modify rhizobial cell wall (B) Production of flavonoid inducers (C) Establishment of contact between bacteria and legume (D) Root

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The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be

The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be

The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be Option 1 : 20Option 2 : 10Option 3 : 40Option 4 : 15

The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be Read More »

Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence

Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence

Q. Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence. Assuming random distribution of bases, the average length (in bp) of the fragments generated is           Ans: 4096 to 4096

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There are various types of reproduction. The type of reproduction adopted by an organism depends on

There are various types of reproduction. The type of reproduction adopted by an organism depends on

There are various types of reproduction. The type of reproduction adopted by an organism depends on Option 1 : The organism’s habitat, physiology and genetic makeup.Option 2 : The habitat and morphology of the organism.Option 3 : Morphology of the organism.Option 4 : Morphology and physiology of the organism.

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The absorbance of a solution of tryptophan measured at 280 nm in a cuvette of 2.0 cm path length is 0.56 at pH 7

The absorbance of a solution of tryptophan measured at 280 nm in a cuvette of 2.0 cm path length is 0.56 at pH 7

Q. The absorbance of a solution of tryptophan measured at 280 nm in a cuvette of 2.0 cm path length is 0.56 at pH 7. The molar extinction coefficient (e) for tryptophan at 280 nm is 5600 M-1cm-1 at pH 7. The concentration of tryptophan (in µM) in the solution is           Ans: 0.32 to

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