Which of the following stages of meiosis involves division of centromere?
(A)Metaphase I
(B)Metaphase II
(C)Anaphase II
(D)Telophase II

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:
(A)Elasticity
(B)Flexibility
(C)Plasticity
(D)Maturity

Which of the following plants is monoecious?
(A)Carica papaya
(B)Chara
(C)Marchantia polymorpha
(D)Cycas circinalis

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:
(A)Metacentric
(B)Telocentric
(C)Sub-metacentric
(D)Acrocentric

The site of perception of light in plants during photoperiodism is:
(A)Shoot apex
(B)Stem
(C)Axillary bud
(D)Leaf

The factor that leads to Founder effect in population is:
(A)Natural selection
(B)Genetic recombination
(C)Mutation
(D)Genetic drift

The plant hormone used to destroy weeds in a field is:
(A)IAA
(B)NAA
(C)2,4 -D
(D)IBA

Match Column - I with Column - II.

Select the correct pair.
(A)Large colorless empty cells in the epidermis of grass leaves - Subsidiary cells
(B)In dicot leaves, vascular bundles are surrounded by large thick-walled cells - Conjunctive tissue
(C)Cells of medullary rays that form part of cambial ring - Interfascicular
cambium
(D)Loose parenchyma cells rupturing the epidermis and forming a lens-shaped opening in bark- Spongy parenchyma

Which of the following statements is correct?
(A)Fusion of two cells is called Karyogamy.
(B)Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy.
(C)Organisms that depend on living plants are called saprophytes.
(D)Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.

Identify the correct statement.
(A)In capping, methyl guanosine triphosphate is added to the 3 ' end of hnRNA.
(B)RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria.
(C)The coding strand in a transcription unit is copied to an mRNA.
(D)Split gene arrangement is characteristic of prokaryotes.

In the exponential growth equation `` N _{ t }= N _{0} e ^{ rt } `` , e represents:
(A)The base of number logarithms
(B)The base of exponential logarithms
(C)The base of natural logarithms
(D)The base of geometric logarithms

Which of the following statements is incorrect?
(A)During aerobic respiration, role of oxygen is limited to the terminal stage.
(B)In ETC (Electron Transport Chain), one molecule of `` NADH + H^{+} `` gives rise to 2 ATP molecules, and one `` FADH _{2} `` gives rise to 3 ATP molecules.
(C)ATP is synthesized through complex `` V `` .
(D)Oxidation-reduction reactions produce proton gradient in respiration.

What is the role of RNA polymerase III in the process of transcription in eukaryotes?
(A)Transcribes rRNAs `` (28 S , 18 S `` and `` 5.8 S ) ``
(B)Transcribes tRNA, 5 s rRNA and snRNA
(C)Transcribes precursor of mRNA
(D)Transcribes only snRNAs

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?
(A)Poaceae; Rosaceae
(B)Poaceae ; Leguminosae
(C)Poaceae ; Solanaceae
(D)Rosaceae ; Leguminosae