Mendel proposed which of the following terms for hereditary units:

In genetics, the use of chequer board was done by:

The main reason for the success of Mendel was:

What type of gametes will be formed by genotype RrYy?

When heterozygous tall plants are self-pollinated, then tall and dwarf plants are obtained. This explains:

In F2 generation, a phenotypic ratio of 1 : 1 : 1 : 1 exhibits:

From a cross Aa BB × aa BB, which of the following genotypic ratio will be obtained in F1 generation?

In a monohybrid cross, 120 plants are obtained. The ratio of homozygous and heterozygous will be:`

How many different types of genetically different gametes will be produced by a heterozygous plant having the genotype  AABbCc:

Mendel’s law of independent assortment is applicable for:

Inheritance of ABO blood group system is an example of:

A person with antigens ‘B’ in RBC and antibodies ‘A’ in the plasma belongs to the blood group:

Exchange of genetic material between chromatids of homologous chromosomes during meiosis is called:

Who coined the term linkage?

Mendelian rediscoverers are all except:

The following pedigree shows:

Which of the following statement is not true of two genes that shows 50 per cent recombination frequency?

One map unit is equal to

Crossing over occurs between

Which of following radiation does not result in mutational change?

Evolutionary biology is related to the:

Which of the given statement is wrong as per the ‘theory of Special Creation’?

The fitness referred to in Darwin’s theory is:

Evidence of evolution form fossils is known as:

Homologous organ represents:

Which of the following shows analogy?

Variation may be due to:

Mutations are:

Life was created by some supernatural power. This theory is:

Life originated in:

This diagram shows:

The process of evolution is:

Darwin’s finches provide excellent evidence in favour of evolution. This evidence comes from the field of:

The most direct evidence of organic evolution is

Fossil X is older than fossil Y because

The first attempt to solve the problem of mechanism of organic evolution was made by:

The most important theory of evolution was proposed by:

Survival of the fittest is possible due to:

The theory of natural selection of Darwin:

Which is the basis for evolutions?

The theory of use and disuse of organs was given by:

Archaeobacteria can tolerate maximum temperature upto:

Bacteria involved in evolution of flagella were:

Theory of catastrophism was presented by:

Choose the correct option. (voice)Do you imitate others?

Choose the correct option. (voice)You need to clean your shoes properly.

Choose the correct option. (voice)Did she do her duty?

Choose the correct option. (voice)The invigilator was reading out the instructions.

Choose the correct option. (Narration)They said, “How beautiful this mosque is!” 

Choose the correct option. (Narration)She said to her son, “Never tell a lie.”

Choose the correct option. (Narration)He said to us, “My dogs were not barking at you.” 

Choose the correct option. (Narration)The teacher says, “Don’t go there.”

Choose the correct option. (Punctuation)

Choose the correct option. (Punctuation)

Choose the correct option. (Punctuation)

Choose the correct option. (Punctuation)

Identify the followings.
Dad had bought it that very morning.

Identify the followings.
We have proof positive of his guilt.

Choose the correct SYNONYM.
STUNT

Choose the correct SYNONYM.
SAUNTERED

Read the following passage and answer the following questions. The movement of troops on the battlefield may “change the course of history”, but this is equally ephemeral from the archaeologist's standpoint. What is perhaps worse, most organic materials are perishable. Everything made of wood, hide wool, linen, grass hair and similar materials will decay and vanish in dust in a few years or centuries, save under very exceptional conditions. In a relatively brief period the archaeological record is reduced to mere scraps of stone, bone, glass, metal, and earthenware. Still modern archaeology, by applying appropriate techniques and comparative methods aided by a few lucky finds from peat bogs, deserts and frozen soils is able to fill up a good deal of the gap.
Which of the following is NOT mentioned as an example of an organic material?

Read the following passage and answer the following questions. The movement of troops on the battlefield may “change the course of history”, but this is equally ephemeral from the archaeologist's standpoint. What is perhaps worse, most organic materials are perishable. Everything made of wood, hide wool, linen, grass hair and similar materials will decay and vanish in dust in a few years or centuries, save under very exceptional conditions. In a relatively brief period the archaeological record is reduced to mere scraps of stone, bone, glass, metal, and earthenware. Still modern archaeology, by applying appropriate techniques and comparative methods aided by a few lucky finds from peat bogs, deserts and frozen soils is able to fill up a good deal of the gap.
The author mentions all of the following archaeological discovery sites EXCEPT:

Statements:
I.  Rural households have more purchasing power than do urban or suburban households at  the same income level. 
II. Some of the income urban and suburban households use for food and shelter can be used by rural households for other needs.

Statements:
I.   A poor corn harvest was predicted. 
II.  Prices of corn has fallen.

Statements:
I.  Unlike  the  wholesale  price  of  raw  wool,  the  wholesale  price  of  raw  cotton  has  fallen  considerably in the last year.  
II. The retail price of cotton clothing at retail clothing stores has not yet fallen.

Statements:
I.  Many students failed in final exam of matric in a school despite having all the top class educational facilities. 
II. Many students there approached the studies with an easy mindset and they did not feel the importance of proper preparation.

Statements:
I.   The local traders association urged all its members to close down their shops for a day to protest against the government’s new tax policy. 
II.  Many shopkeepers decided to close down their shops for the day and gave a day off to their employees.

DIRECTION: 
Dengue is already the most widespread mosquito-borne disease among humans. In the past 15 years, outbreaks in South and South-East Asia have been rapidly rising mostly due to falling environmental and public health standards during urbanization. WHO, reports that severe forms of the disease such as hemorrhagic fever (DHF) and shock syndrome (DSS) are putting more 2.5 million people at risk worldwide each year. Importantly, 95 % of the DHF case are among children less than 15 years. Therefore, the disease has major impacts on public health and future generations.
Over the last decade, South Asian countries have not successfully stepped up mechanism to combat dengue.

Both Xenon and cesium each have___________ no. of isotopes

No. of neutrons in the nucleus of   are

Mass of a proton is equal to mass of 

When a nucleus emits an –particle the change in mass No. and charge No. are respectively

With the emission of –positive an elementary particle is also emitted by nucleus which is named as

How much part of a sample decayed after 4 half lives

Which of the nuclear radiation has highest ionizing power?

Mass of a particle is ___________ times greater than mass of –particle

A meson makes up with

Strong nuclear force is experienced by

Wave length of photon produced due to transition of electron from higher level E2 to E1 is

An electron is accelerated through potential difference ‘V’ volt. If ‘m’ is mass and ‘e’ is charge on electron then de-Broglie wavelength of electron is

Davisson and Germer experiment confirm

Who was awarded Nobel prize on his work on dual nature of particles

In photo electric effect wavelength of incident photon is l while threshold wavelength of metal surface is lo. The K.Emax of ejected electron is given by

A pn–junction can act as

Which one is not correct for a reverse biased diode

In the given circuit Si diode and 10resistance are connected as shown what is potential difference across 10 resistance

What is the momentum of a photon having frequency ?

The total energy of the electron in nth orbit of hydrogen atom around the nucleus is given by:

Which one has highest penetration power other than nuclear radiations.

If   of radioactive atoms decays in 16 hours, the half-life of element is

Which of the following statement is correct? 

During half wave rectification frequency

If the K.E of a free electron becomes four times, its de Broglie wavelength changes by the factors

The ratio of potential barriers for Ge to Si at room temperature is:

Output voltage of rectifier is not smooth; it can be made by a circuit known as:

AC voltage is fed into a single diode rectifier. The output of the rectifier is

When we reverse the direction of the semi-conductor, then the current flows due to

In forward biases, the height of potential barrier:

The ratio of the energies of the hydrogen atom in its first to second excited states is

Which of the following statement is true of hydrogen atom?

If   and   are the wavelengths of the first transition of the Lyman and Paschen series respectively, then   is,

On reducing the wavelength of the light incident of a metal, the velocity of emitted photoelectron will become

The total number of spectral lines for an electron transition form n = 5 to n = 1 states is

The experimental value of Rydberg constant is

Stopping potential depends upon

As the intensity of incident light increases

In photoelectric effect max. K.E of photoelectrons is expressed as

The value of wavelength of radiation emitted due to transition of electrons from   n = 4 to n = 2 state in hydrogen atom will be

When an electron jumps from a higher state to lower state its

The diagram shows the first five energy levels of an atom
 Photones of electromagnetic radiation are emitted when an electron falls from one energy level to a lower level.Which transition corresponds to a photon with the greatest wavelength?

In Balmer series, shortest wavelength radiations will be obtained when

The number of protons in any atom are always equal to the number of:

The half-value period of a radioactive nuclide is 3 hours. In 9 hours, its activity will be reduced by a factor of:

There are 42 protons and 53 neutrons in the atom of an element. This element is represented as

The decay of a neutron into proton in the nucleus gives rise to the emission of:

For the radiotherapy of a patient, it is required to double the absorbed dose in gray. Which step must be taken?

The isotopes I-131 is used in the treatment of:

Which one of the following is not affected by electric or magnetic field?

The activity of radioactive sample:

Radioactive materials can be identified by measuring their:

Half-life of U-239 is:

Which one of the following is formed during beta emission?

Which reaction does not yield and ester as one of the products 

When propionic acid is treated with aqueous sodium bicarbonate, CO₂ is liberated. The C of CO₂ comes from 

Which compound gives brick red precipitate of cuprous oxide with Benedict’s solution 

A compound containing aldehydic group and alcoholic group is known as 

Formalin is an aqueous solution of 

Which of the following is dihydric alcohol 

If ethanol was reacted with propanoic acid, the ester form would be 

Picric acid is