Which one of the following can be explained on the basis of Mendel’s Law of Dominance? $\newline$ A. Out of one pair of factors one is dominant and the other is recessive. $\newline$ B. Alleles do not show any expression and both the characters appear as such in F_2 generation. $\newline$ C. Factors occur in pairs in normal diploid plants. $\newline$ D. The discrete unit controlling a particular character is called factor. $\newline$ E. The expression of only one of the parental characters is found in a monohybrid cross.

The equation of Verhulst-Pearl logistic growth is $\frac{dN}{dt} = rN [\frac{K - N}{K}]$ From this equation, $K$ indicates:

What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism? $\newline$ A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism. $\newline$ B. It may get integrated into the genome of the recipient. $\newline$ C. It may multiply and be inherited along with the host DNA. $\newline$ D. The alien piece of DNA is not an integral part of chromosome. $\newline$ E. It shows ability to replicate.

These are regarded as major causes of biodiversity loss: $\newline$ A. Over exploitation $\newline$ B. Co-extinction $\newline$ C. Mutation $\newline$ D. Habitat loss and fragmentation $\newline$ E. Migration

Identify the set of correct statements: $\newline$ A. The flowers of Vallisneria are colourful and produce nectar. $\newline$ B. The flowers of water lily are not pollinated by water. $\newline$ C. In most of water-pollinated species, the pollen grains are protected from wetting. $\newline$ D. Pollen grains of some hydrophytes are long and ribbon-like. $\newline$ E. In some hydrophytes, the pollen grains are carried passively inside water.

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Chromosomes become gradually visible under light microscope during leptotene stage. $\newline$ $\newline$Statement II: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Parenchyma is living but collenchyma is dead tissue. $\newline$ $\newline$Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Bt toxins are insect group specific and coded by a gene cry IAc. $\newline$ $\newline$Statement II: Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

Which of the following are required for the dark reaction of photosynthesis? $\newline$ A. Light $\newline$ B. Chlorophyll $\newline$ C. CO₂ $\newline$ D. ATP $\newline$ E. NADPH

Tropical regions show greatest level of species richness because: $\newline$ A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. $\newline$ B. Tropical environments are more seasonal. $\newline$ C. More solar energy is available in tropics. $\newline$ D. Constant environments promote niche specialization. $\newline$ E. Tropical environments are constant and predictable.

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: In C₃ plants, some O₂ binds to RuBisCO, hence CO₂ fixation is decreased. $\newline$ $\newline$Statement II: In C₄ plants, mesophyll cells show very little photosynthesis while bundle sheath cells do not show photorespiration. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

$\newline$Read the following statements and choose the set of correct statements: $\newline$ In the members of Phaeophyceae $\newline$A. asexual reproduction occurs usually by biflagellate zoospores. $\newline$ $\newline$B. Sexual reproduction is by oogamous method only. $\newline$ $\newline$C. Stored food is in the form of carbohydrates which is either mannitol or laminarin. $\newline$ $\newline$D. The major pigments found are chlorophyll a, c, and carotenoids and xanthophyll. $\newline$ $\newline$E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is $\newline 100x \ (kcal m^{-2}) yr^{-1} \newline$ what would be the Gross Primary Productivity (GPP) of the third trophic level of the same ecosystem?

Which of the following are Autoimmune disorders? $\newline$ A. Myasthenia gravis $\newline$ B. Rheumatoid arthritis $\newline$ C. Gout $\newline$ D. Muscular dystrophy $\newline$ E. Systemic Lupus Erythematosus (SLE)

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: In the nephron, the descending limb of the loop of Henle is impermeable to water and permeable to electrolytes. $\newline$ $\newline$Statement II: The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for absorption. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

$\newline$Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. $\newline$ $\newline$Assertion A: FSH acts upon ovarian follicles in females and Leydig cells in males. $\newline$ $\newline$Reason R: Growing ovarian follicles secrete estrogen in females while interstitial cells secrete androgen in male human beings. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

Given below are some stages of human evolution. Arrange them in correct sequence (Past to Recent). $\newline$A. Homo Habilis$\newline$ B. Homo sapiens $\newline$ C. Homo neanderthalensis $\newline$ D. Homo erectus

The 'Ti plasmid' of Agrobacterium tumefaciens stands for:

Which one is the correct product of DNA dependent RNA polymerase to the given template? $\newline$3'TACGGCAAATACCTTAC5'

$\newline$Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. $\newline$ $\newline$Assertion A: Breast-feeding during the initial period of infant growth is recommended by doctors for bringing a healthy baby. $\newline$ $\newline$Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the newborn baby. $\newline$ $\newline$In the light of the above statements, choose the most appropriate answer from the options given below:

Following are the stages of pathway for conduction of an action potential through the heart:$\newline$A. AV bundle$\newline$B. Purkinje fibres$\newline$C. AV node$\newline$D. Bundle branches$\newline$E. SA node$\newline$Choose the correct sequence of pathway from the options given below:

$\newline$Consider the following statements: $\newline$ $\newline$A. Annelids are true coelomates $\newline$B. Poriferans are pseudocoelomates $\newline$C. Aschelminthes are acoelomates $\newline$D. Platyhelminthes are pseudocoelomates $\newline$ $\newline$Choose the correct answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: The presence or absence of hymen is not a reliable indicator of virginity. $\newline$ $\newline$Statement II: The hymen is torn during the first coitus only. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

$\newline$Following are the stages of cell division: $\newline$ $\newline$A. Gap 2 phase $\newline$B. Cytokinesis $\newline$C. Synthesis phase $\newline$D. Karyokinesis $\newline$E. Gap 1 phase $\newline$ $\newline$Choose the correct sequence of stages from the options given below:

$\newline$The following are the statements about non-chordates: $\newline$ $\newline$A. Pharynx is perforated by gill slits. $\newline$B. Notochord is absent. $\newline$C. Central nervous system is dorsal. $\newline$D. Heart is dorsal if present. $\newline$E. Post anal tail is absent. $\newline$ $\newline$Choose the most appropriate answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Mitochondria and chloroplasts are both double membrane-bound organelles. $\newline$ $\newline$Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast. $\newline$ $\newline$In the light of the above statements, choose the most appropriate answer from the options given below:

$\newline$Regarding catalytic cycle of an enzyme action, select the correct sequential steps: $\newline$ $\newline$A. Substrate enzyme complex formation. $\newline$B. Free enzyme ready to bind with another substrate. $\newline$C. Release of products. $\newline$D. Chemical bonds of the substrate broken. $\newline$E. Substrate binding to active site. $\newline$ $\newline$Choose the correct answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced. $\newline$ $\newline$Statement II: Both bone marrow and thymus provide microenvironments for the development and maturation of T-lymphocytes. $\newline$ $\newline$In the light of the above statements, choose the most appropriate answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: The cerebral hemispheres are connected by a nerve tract known as corpus callosum. $\newline$ $\newline$Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum. $\newline$ $\newline$In the light of the above statements, choose the most appropriate answer from the options given below:

$\newline$Given below are two statements: $\newline$ $\newline$Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely. $\newline$ $\newline$Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting. $\newline$ $\newline$In the light of the above statements, choose the correct answer from the options given below:

As per ABO blood grouping system, the blood group of father is B⁺, mother is A⁺ and child is O⁺. Their respective genotype can be: $\newline$ A. IᴮIᴮ / Iᴬi / ii $\newline$ B. IᴮIᴮ / IᴬIᴬ / ii $\newline$ C. IᴬIᴮ / iiA / Iᴮi $\newline$ D. Iᴬi / Iᴮi / Iᴬi $\newline$ E. iIᴮ / iIᴬ / IᴬIᴮ