Select the correct statement from the following statements I. Increase in mass and increase in number of individuals are twin characteristics of growth II. Metabolic reactions can also be demonstrated outside the body in isolated cell-free systems III. ‘Response to stimuli’ is a defining property of living organisms

Increase in mass and increase in number of individuals are considered twin characteristics of growth, metabolic reaction can also be demonstrated in vitro and consciousness is considered as a determining property of livings

The correct Option is "I, II and III"

Choose the correct combination of options to select the correct statement for prophase I. Chromosomal material condenses to form compact mitotic chromosomes II. The assembly of mitotic spindle is initiated by the microtubules III. Cells do not show organelles when viewed under the prophase IV. The nucleolus or nucleoli degenerate completely

At the end of prophase, several characteristic events can be observed. Chromosomal material condenses to form compact mitotic chromosomes. Two chromatids attach together to form chromosomes Assembly of mitotic spindle is initiated by, microtubules (proteinaceous components) of the cell cytoplasm. When observed under the microscope cells at the last stage of prophase, do not shows cell organelles like, Golgi complexes, endoplasmic reticulum, nucleolus and the nuclear envelope

The correct Option is "All of these"

Select the correct statement with reference to muscle structure I. Each myosin is a polymerized protein II. Many meromyosin constitutes one thick filament (myosin) III. Each meromyosin’s tail is called heavy meromyosin (HMM) and head is called light meromyosin (LMM) IV. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin Choose the option with correct statements

The correct Option is "All except III"

Select the correct statement from the following

The cell of the permanent tissues do not generally divide further. Permanent tissues having all cells similar in structure and function are called simple tissues. Permanent tissues having different types of cells together are called complex tissues

The cells of the permanent tissue do not generally divide

Permanent tissues having all cells similar in structure and function are called simple tissues

Permanent tissues having many different types of cells are called complex tissues

The correct Option is "All of the above"

Select the correct statement from the following

The net direction and rate of osmosis depends on both the pressure gradient and concentration gradient

Only the net direction of osmosis, not the rate of osmosis depends on both the pressure gradient and concentration gradient

The rate of osmosis depends only on pressure gradient

The correct Option is "The net direction and rate of osmosis depends upon both the pressure gradient and concentration gradient"

The net direction and rate of osmosis do not depend on the pressure gradient and concentration gradient

Select the correct statement.

The legumes (papilionacous plants) are itself incapable of nitrogen fixation. The Rhizobium bacteria are present symbiotically in the root nodules of these plants which have the capability of nitrogen fixation

Legumes are incapable of fixing nitrogen

Legumes fix nitrogen through bacteria living in fruits

The correct Option is "Legumes fix nitrogen only by bacteria present in root nodules"

Select the correct statement among the following

Suspension of slaked lime in water is known as milk of lime Crude sodium chloride obtained by crystallization of brine solution contains $CaS{O_4},N{a_2}S{O_4}\,and\,\,MgC{l_2}$ Beryllium salts are easily hydrolysed Gypsum: $CaS{O_4}.2{H_2}O$ Plaster of Paris : $CaS{O_4}.\,\frac{1}{2}{H_2}O$

Suspension of slaked lime in water is known as lime water

Crude sodium chloride obtained by crystallisation of brine solution contains $MgS{O_4}$

Beryllium salts are rarely hydrolysed

The correct Option is "Gypsum contains a lower percentage of Ca than in plaster of Paris"

Select the correct statement from the ones given below with respect to dihybrid cross.

Morgan and his group found that when genes were grouped on the same chromosome, some genes were very tightly linked (showed very low recombination), while others were loosely linked (showed higher recombination).

Tightly linked genes on the same chromosome show higher recombinations

Genes far apart on the same chromosome show very few recombinations

Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones

The correct Option is "Tightly linked genes on the same chromosome show very few recombinations"

Select the correct statement from the following

Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria. In activated sludge system. The primary efflument is taken to aeration tank. In side the aeration tank, several aerobic microbes (bacteria, Protozoa, micro fungi and micro algae) are employed to consume a major part of organic matter

The correct Option is "Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria"

Biogas is produced by the activity of aerobic bacteria on animal wastes

Methanobacterium is an aerobic bacterium found in rumen of cattle

Biogas, commonly called gobar gas is pure methane

Select the correct statement from the following

${v_0} = \sqrt {\frac{{GM}}{r}} $

The orbital velocity of a satellite increases with the radius of the orbit

Escape velocity of a particle from the surface of the earth depends on the speed with which it is fired

The time period of satellite does not depend on the radius of the orbit

The correct Option is "The orbital velocity is inversely proportional to the square root of the radius of the orbit"

Select the correct statement.

Fertilized zygote is divided by special type of mitotic divisions, known as cleavage. Cleavage increases the number of cells.

Yolk content in egg has no role in cleavage

The correct Option is "Cleavage is repeated mitotic division of zygote"

Gastrulation and blastulation are followed by each other

Select the correct statement about the detection of sulphur in organic compounds

Sulphur is present in the sodium extract in the form of sodium sulphide $\left( {{\rm{N}}{{\rm{a}}_2}{\rm{S}}} \right)$ ${\rm{FeC}}{{\rm{l}}_3}$ gives blood red colour with sodium extract contain N and S

Sulphur present in organic compound on fusion with sodium is converts to ${\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3}$

${\rm{FeC}}{{\rm{l}}_3}$ gives purple colour when added to the sodium fusion extract

The correct Option is "Sodium nitroprusside is used to detect the presence of sulphur"

Select the correct statement :

The prefixes are written before the name of compound

The suffixes are written after the name of compound

The IUPAC name of a compound is always written as one word

The correct Option is "All of the above"

Select the correct statement.

Some metals form amphoteric oxides, e.g.,ZnO; white P is kept in water. Carbon forms neutral (CO) and acidic oxides $\left( {C{O_2}} \right)$.

The correct Option is "Sodium metal is stored under kerosene"

One of the oxides of carbon is a basic oxide

Metals can form only basic oxides

To prevent combination of white phosphorus with oxygen it is kept in kerosene

Select the correct statement regarding protein synthesis

Peptidase catalyses the breaking of peptide bond. The UTRs are present at both $5'$ -end (before start codon) and $3'$ -end (after stop codon). At the end of translation release factor binds to the stop codon, terminating translation and releasing the complete polypeptide from the ribosome.

The correct Option is "When the small subunit of the ribosome encounters an mRNA the process of translation begins"

Peptidase catalyse the formation of peptide bond

UTRs are present between the start codon and stop codon

At the end of translation, the release factor binds to the initiation codon

Consider the following statements and select the correct statement(s). I. Optics deal with the phenomena involving light. II. Unification means physical phenomena in terms of few concepts and laws. III. Macroscopic domain of Physics deals with the constitution and structure of matter at the minute scales of atoms and nuclei. IV. Mechanics deals with motion of rigid bodies.

Optics deals with the phenomena involving light. The working of telescopes and microscopes, colours exhibited by thin films, etc., are topics in optics. The microscopic domain of Physics deals with the constitution and structure of matter at the minute scales of atoms and nuclei (and even lower scales of length) and their interaction with different probes such as electrons, photons and other elementary particles.

The correct Option is "I and IV"

Cell theory is not applicable for

Viruses do not have any living characteristic except replication but replication happens only when living cells are available to assist them. Cell theory is not applicable for viruses.

Inhibition of enzyme activity by a molecule, which reversibly modifies the structure of the active site of the enzyme is called

Allosteric inhibition is the inhibition of enzyme activity by binding of an effector molecule to site (allosteric site) other than active site.

Non-competitive reversible inhibition

The correct Option is "Allosteric inhibition"

The condition in which male and female parts present on the different plant, is called

Heterothallic/dioecious/unisexual term used when the sexes present on different organisms called male and female The archegonia and antheridia term used in case of lower organism

The correct Option is "All of these"

Some statements are given regarding the active transport in plants. Choose the incorrect statement

Transport of minerals through xylem from the soil to plant takes place by active transport. This active transport need energy to move molecules against the concentration gradient. This is facilitated with membrane proteins due to less concentration of minerals ions in the soil. minerals are transported into root cells by active transport

Active transport need energy to pump molecules against the concentration gradient

It is carried out with the help of membran protein

The correct Option is "Due to more concentration of charged particles in soil then the concentration in roots, active absorption of mineral takes place"

Cambium activity is highest in

The cambium activity is seen in the temperate trees in two seasons of the year. In the spring season, cambium activity is highest as a result more amount of wood is formed due to long duration of favourable period. This type of wood is known as spring wood or early wood. In autumn season, cambium activity is arrested as a result dark-coloured, narrow band of autumn wood or late wood is formed. The two woods jointly constitute the annual rings or growth rings.

The first phylogenetic system of plant classification was proposed by

The first phylogenetic system was proposed by Eichler, who is famous for his work entitled ‘Bluthen Diagramme’ published in two volumes.

The correct Option is "Eichler"

Which of the following nutrient is required for pollen germination ?

Boron is required for pollen germination

Cleistogamous flowers

Never open. Chasmogamy is the type of autofertilisation (self-fertilisation) in which both male and female gametes present on same flower but pistil and stamen have special adaptation like bending length, etc., so that fertilization takes place. They are open flower not closed like cleistogamous flowers

The correct Option is "Never open"

Choose the type of enzyme involved in the following reaction ${\rm{S}} - {\rm{G}} + {\rm{S'}} \to {\rm{S}} + {\rm{S'}} - {\rm{G}}$

Transferases catalyze transfer of group G (other than hydrogen) between a pair of substrates, S and S’, e.g., ${\rm{S}} - {\rm{G}} + {{\rm{G}}^{{\rm{'}}\,\,\,\,}}\,{\rm{S}} + {\rm{S'}} - {\rm{G}}$