Biology Full Length Mock Test 30 JULY

Which one of the following is not used for ex situ plant conservation?

Which of the following represent maximum number of species among global biodiversity?

Plants like Aegle marmelos, Ocimum sanctum and Ficus religiosa are a group of plants designated as

Study the four statements (a–d) given below and select the two correct ones out of them

(a) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers

(b) Predator star fish Pisaster helps in maintaining species diversity of some invertebrates

(c) Predators ultimately lead to the extinction of prey species

(d) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders

The two correct statements are:

Which one of the following is used as biological insecticide?

In paddy fields biological nitrogen fixation is chiefly brought by

A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is called

The organism which causes pneumonia in human beings is

A localized inflammatory response appears at the site of infection causes redness, swelling, pain and heat due to certain chemical, they are

Antivenom is used for the treatment of snake bite. The treatment of snake bite by antivenom is an example of

Main objective of production/use of herbicide resistant Genetically modified crops is to:

Which one of the following is used as biological insecticide?

During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?

Bacillus thuringiensis (Bt) strains have been used for designing novel

A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is called

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by

Study the followings related to uses of plants and identify the correct match for the sorghum and cotton respectively.

I. Blood purification and organic fertilizer.

II. Animal feed and paper industry

III. ‘B’ Vitamin and cosmetics.

IV. Explosives and organic fertilizer.

The correct pair is:

Bacillus thuringiensis is used to control

Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in

Restriction endonucleases are most widely used in recombinant DNA technology. They are obtained from

In cloning of cattle a fertilized egg is taken out of the mother’s womb and

The transgenic animals are those which have

Which one contains four pyrimidine bases?

Which one of the following is not a constituent of cell membrane?

Which one of the following also acts as a catalyst in a bacterial cell?

Plasma membrane is made up of

Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?

Cell division can not be stopped in which phase of the cell cycle?

The ‘‘lock and key’’ model of enzyme action illustrates that a particular enzyme molecule

Feedback inhibition of enzymes is affected by which of the following

Which of the following is not a conjugated protein?

The effectiveness of an enzyme is affected least by

Enzymes that catalyse inter-conversion of optical, geometrical or positional isomers are

The first enzyme to be purified and crystallized was

Beadle and Tatum showed that each kind of mutant bread mould they studied lacked a specific enzyme. Their experiments demonstrated that

The activity of succinate dehydrogenase is inhibited by

The enzyme responsible for the reduction of molecular nitrogen to the level of ammonia in the leguminous root nodule is

Which one of the following statements is true with reference to enzymes?

Comparable to angiosperms, which of the following algae exhibits diplontic life cycle?

Isogamous condition with non-flagellated gametes is found in

Besides paddy fields, cyanobacteria are also found inside vegetative part of

What is true about Archaebacteria?

Nuclear membrane is absent in

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in

Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

Consider the following four conditions (a – d) and select the correct pair of them as adaptation to environment in desert lizards. The conditions (a) Burrowing in soil to escape high temperature (b) Losing heat rapidly from the body during high temperature (c) Bask in sun when temperature is low (d) Insulating body due to thick fatty dermis

In a population, if the rate of addition of new members is higher than the rate of individuals lost, it shows

In an ecosystem Biotic factors affect the survival of an organism in that ecosystem. They includes

Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:

An important evidence in favor of organic evolution is the occurrence of

If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured flowers will be

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy?

When a tall plant with round seeds (TTRR) crossed with a dwarf plant with wrinkle seeds (tfrr). The F₁ generation consists of tall plants with round seeds. What would be the proportion of dwarf plant with wrinkle seeds in F₁ generation?

Phenotype of an organism is the result of

Two pea plants were subjected cross pollination. Of the 183 plants produced in the next generation, 94 plants were found to be tall and 89 plants were found to be dwarf. The genotypes of the two parental plants are likely to be

PCR and Restriction Fragment Length Polymorphism are the methods for

Removal of introns and joining of exons in a defined order during transcription is called

A single strand of nucleic acid tagged with a radioactive molecule is called

Why are UGA, UAG and UAA called termination codons?

In the DNA molecule:

What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA

The sequence of events mentioned below are symbolized by alphabets. Choose the correct answer where the alphabets are matched with the processes. <.p>

RNA —(A)—> DNA —(B)—> DNA —(C)—> mRNA —(D)—> Polypeptide

In a healthy adult man the normal diastolic pressure is

The deposition of lipids on the wall lining the lumen of large and medium sized arteries is referred to as

The valves which allow blood to flow from the ventricles into the arteries and not in the opposite direction are

Which of the following sequences is truly a systemic circulation pathway?

People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude

Organ that produces bile is ______.

The glucose is converted into glycogen in liver and stored in

Which enzyme is used in alcoholic fermentation of yeast?

The primary androgen produced by males is ______.

Which of the following hormone is chemically glycoprotein?

The hormone responsible for “Fight and Flight” response is

Which of the following hormones synchronizes circadian rhythms and may be involved in onset of puberty?

Which one of the following pairs is incorrectly matched?

What is reabsorbed through loop of Henle?

Why do we urinate more in wet and cold months?

Which of the following hormones is involved in regulating the water-salt balance of the blood?

Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?

Which of the following muscles draw the lower jaw, tongue and the head backward?

Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?

Hemoglobin retains oxygen and releases it in the ______.

In which one of the following do the two names refer to one and the same things?

The oxygen dissociation curve is shifted to the right by an increase in ______.

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was

Short-lived immunity acquired from mother to foetus across placenta or through mother’s milk to the infant is categorized as:

About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH-surge) normally occurs?

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

In anatropous ovule what is the direction of micropyle?

As compared to a C₃-plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by C₄-plants

Which one of the following is not true about the light reactions of photosynthesis?

An example of merocrine gland is______.

Cancer cells are more easily damaged by radiation than normal cells because they are______.

Which glands secrete hormones directly into the extracellular space?

Which of the following has slowest growth rate?