Question # 1

If the distance of 20 map units is found among two linked loci what would be the percentage of cross gametes

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40%

60%

20%

10%

Change in temperature from 30o C to 40o C in human body will cause ____ in rate of reaction

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Increase

Decrease

First increase then decrease

First increase then constant

Animals involved in the construction of corals are

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Polyps

Medusae

Gonozooids

None

The pairs of gills present in cyclostomata are

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5-7

10-12

6-14

4-5

Succulent plants are

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Xerophytes

Mesophytes

Hydrophytes

None of above

Enzymes present in human body generally have

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Same optimum temperature and optimum pH

Same optimum temperature but different optimum pH

Same optimum pH but different optimum temperature

Different optimum temperature and optimum pH

Lices and mosquitoes are the examples of

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Endoparasite

Ectoparasite

Outer parasite

All of above

Annual rainfall in grassland is about:

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250 to 650 mm

250 to 850 mm

250 to 450 mm

250 to 750 mm

Retroviruses cause tumors in

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Rodents

Fowls

Cats

All

Which hormone require 2nd messenger

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Insulin

Estrogen

Progesterone

Testosterone

Global warming is the result of

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Ozone layer depletion

Acid rain

Green house gases

All of them

Primary consumers form ______ trophic level

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First

Second

Third

Forth

______ components include all living organisms including plants and animals supported by biosphere

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Biotic

Abiotic

Physical

Both a and b

A process in which green plants are eaten by animals is called

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Grazing

Predation

Commensalization

None of these

Which of the following nitrogenous base have methyl group

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Adenine

Guanine

Uracil

Thymine

In deuterostomes mesoderm is derived from wall of developing

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Coelom

Heart

Archenteron

Blastopore

What will be the risk of heamophilia in sons if father is haemophilic and mother is normal

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0%

20%

25%

50%

The major unit of ecology is the:

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Physical component

Biotic component

Ecosystem

Logos

Anti-Rh antibodies appear in plasma

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During first few months

During last months

Only when stimulated

If Rh⁺individual mistakenly receives Rh^-blood

Regulation of hunger and menstrual cycle is controlled by

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Cerebrum

Thalamus

Hypothalamus

Pons

Plants growing in xeric condition are called

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Xerophytes

Mesophytes

Hydrophytes

Schizophytes

The organisms of same species live in a same place is called

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Community

Population

Consumers

All of these

Pre-chordates is another name used for

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Echinoderms

Protochordates

Cephalochordates

Hemichordates

In HIV infection cycle, uncoating of virus takes place

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Outside the T-cell

Inside the cytoplasm of T-cell

Inside the nucleus of T-cell

Inside the mitochondria of T-cell

Insulin is a/an:

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Osmotic Protein

Transport Protein

Regulatory Protein

Catalytic Protein

In coniferous alpine and boreal forest the temperature ranges from:

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0°C to 10°C

Below freezing point up to 10°C

Below freezing point up to 15°C

0°C to 15°C

In temperature deciduous forest the range of temperature is form:

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0∘C - 30∘C

4∘C - 30∘C

4∘C - 25∘C

4∘C - 40∘C

bare rocks are the habitats of

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Mosses

Lichens

Grasses

Trees

Predation decreases by decreasing the prey due to

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Decrease in food

Decrease in water

Decrease in consumers

All of these

Which of the following reaction is reverse of others

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Hydrolysis

Decondensation

Decomposition

Condensation

Fungi and bacteria are:

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Producers

Consumers

Decomposers

Predators

Endocytosis of an apoptotic body is termed as

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Pinocytosis

Exocytosis

Phagocytosis

Apoptosis

Dominant species of mammals in grassland are the:

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Omnivores

Herbivores

Carnivores

Insectivores

All populations within an ecosystem are known as a:

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Population

Community

Species

Clan

These are the receptors which respond to the mechanical condition of internal organs

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Nocireceptors

Receptors of skin

Receptors of stomach wall

Receptors of eye

Methylation of proteins occur in

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Transport vesicles of endoplasmic reticulum

Lysosomes

Golgi apparatus

Transport vesicles of Golgi bodies

Shallow water zone of the lake near the shore is called:

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Intertidal zone

Littoral zone

profundal zone

Limnetic zone

Digestive vacuoles are also called as

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Primary Lysosomes

Secondary Lysosomes

Phagocytic Vacuoles

Pinocytic Vacuoles

Which of the following does not contain peptide bond

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Hemoglobin

Myoglobin

Insulin

Cutin

Overgrazing

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Promotes salinity

Promotes erosion

Promotes grasses

Inhibits dicot competitors

The only phylum included in Grade Radiata is:

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Porifera

Aschelminthes

Platyhelminthes

Cnidaria

Pick up the correct statement according to induced fit model of enzyme action

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Enzyme induces changes in substrate structure

Substrate induces changes in enzyme structure

Active site of enzyme is a rigid structure

Active site of enzyme is used as a template +

Coniferous forests located at high latitude are called

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Boreal

Taiga

Tundra

Alpine

The parasite that live outside the body of the host is called as

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Endoparasite

Ectoparasite

Outer parasite

All of above

In sickle cell beta chain glutamic acid is replaced by valine which is sixth amino acid from

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N-Terminal

C-Terminal

R-Terminal

H-Terminal

The average rainfall in desert ecosystem is:

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20 - 30 cm

20 - 40 cm

25 - 50 cm

14 - 35 cm

Plants like cacti store their water in large:

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Collenchyma tissues

Mesenchymal tissues

Parenchyma tissues

Epidermal tissues

How many number of autosomal chromosome pairs are present in human

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22

33

44

46

According to endosymbiont hypothesis the aerobic bacteria developed into

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Lysosomes

Mitachondria

Chloroplast

Nucleus

We can strengthen the soil nitrogen resources by adding:

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Liquid nitrogen to soil

Ammonia gas to soil

Nitrogen fertilizers to soil

Nitrogen fixing bacteria to soil

Which type of hepatitis is called serum hepatitis

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Hepatitis A

Hepatitis B

Hepatitis C

Hepatitis D

Which part of amino acid give its physical and chemical properties

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Amino group

Carboxylic group

Alpha carbon

Alkyl group

Green photosynthetic plants are

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Producers

Consumers

Decomposers

None of the above

The amount of energy left after plants have met their respiratory needs is net primary production, which shows up as plant:

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Respiration

Photosynthesis

Biomass

Reserve

In temperate grassland the rate primary production is about:

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700 - 1400 g/m²

700 - 1600 g/m²

700 -1800 g/m²

700 - 1500 g/m²

The dominance relations of a 4 O'clock plant can be described in terms of

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Complete dominance

Incomplete dominance

Partial dominance

Both B and C

The nutrients in aquatic ecosystem tends to be concentrated near the

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Bottom

Surface

Center of total depth

10 feet below the surface

An association between certain fungi and the roots of plants growing in acid soil is:

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Lichens

Predation

Mycorrhiza

Commensalism

Pick up the most developed coelomates

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Echinoderms

Annelids

Chordates

Insects

All chromosomes other than sex chromosomes are called

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Linked Chromosomes

Autosomes

Autophagosommes

Dictyosomes

Acid rain is mainly due to

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SO₂

NO₂

Lead components

Both a and b

Who for the first time found white eye mutant in drosophila ?

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Morgan

Bridges

Correns

De Varies

Mutation of one or two N-bases is

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Inversion

Point mutation

Deletion

Chromosomal aberrations

According to Darwin descent with modification means

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Same ancestor

Same characters

Different ancestors

Different characters

The Organic biomolecule which is widespread in bacterial animal and plant cells is

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Wax

Glucose

Acyl glycerol

Phospholipids

______form the raw material for coenzyme

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Nucleic acid

Lipids

Vitamins

Proteins

The land will be turned to barren land if there is:

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Little grazing

Moderate grazing

Over grazing

None grazing

The chances of which hemophilia is equal in males & females

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A

B

C

All

The optimum temperature for most of the enzymes in human body is

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37 ^oC

35^oC

37 ^oF

98.6^oC

Lamarck published his theory of evolution in

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1822

1812

1817

1809

Soyabeans have been made resistant to a common

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Insecticide

Herbicide

Fungicide

Pesticide

Animal cells differ from plant cells in having

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80 S ribosome

Chloroplasts

Mitochondria

Centrioles

Omnivores are described by how many trophic levels

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Any 2

Any 3

Any 1

Primary & any higher

The simplest reflex circuit includes___ elements

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1

2

3

4

Potentially damaging enzymes are produced in

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Active form

Inactive form

Abundant quantity

Minor quantity

Highest degree of regeneration is present in sponges because of

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Undifferentiated cells

Simplest organization

Ability to reproduce

Absence of germ layers

______ lichens are the examples of foliose lichens

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Dermatocarpon

Permellia

Both a and b

None of above

The actual location or place where an organism lives is called its:

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Niche

Habitat

Abode

Terrain

Pick a non-reducing sugar

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Lactose

Sucrose

Glucose

Fructose

Which of the following is not a biotic component

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Producers

Consumers

Decomposers

Water

Allele for whiteness in Drosophilla is

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Recessive

Codominant

Dominant

Partially dominant