CUET UG MCQ Practice

Practice Questions

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Q1SingleMarks: 5.00Negative: -1.00

Consider Immigration together with related concepts from Organisms and Populations. Which of the following pairs is correctly matched?

A. Immigration — death rate in a populationB. Immigration — functional role and position of a species in its environmentC. Immigration — movement of individuals into a populationD. Immigration — population growth described by dN/dt = rN under unlimited resources

Q2SingleMarks: 5.00Negative: -1.00

Which term is best described as microbial reduction of nitrate to gaseous nitrogen forms?

A. DenitrificationB. Pioneer speciesC. Climax communityD. Ecological succession

Q3SingleMarks: 5.00Negative: -1.00

Which statement correctly describes Analogous organs?

A. nonfunctional homologues onlyB. structures with common origin and divergent functionsC. structures with similar functions but different evolutionary originD. identical genes in siblings

Q4SingleMarks: 5.00Negative: -1.00

Which statement correctly describes Ozone depletion?

A. formation of nitrogen-fixing nodulesB. water eutrophicationC. increase in tropospheric oxygenD. reduction of stratospheric ozone concentration

Q5SingleMarks: 5.00Negative: -1.00

A biology student encounters the description: “process of removing introns and joining exons in RNA”. Identify the corresponding biological concept.

A. HistonesB. MutationC. IntronD. Splicing

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