Home

What is the correct answer?

4

Diseases in plants can be caused by

A. virus

B. bacteria

C. fungi

D. All the above

Correct Answer :

D. All the above


Related Questions

What is the correct answer?

4

Which of the following cell organelles play the most significant role in protein synthesis?

A. Lysosome and Centrosome

B. Endoplasmic reticulum and Ribosome

C. Golgi apparatus and Mitochondria

D. Lysosome and Mitochondria

What is the correct answer?

4

Modern classification of the living world recognise ___________ kingdoms.

A. two

B. three

C. four

D. five

What is the correct answer?

4

Nucleus was first discovered by

A. Porter

B. Robert Brown

C. Palade

D. None of these

What is the correct answer?

4

The valve between the right auricle and right ventricle is called

A. Tricuspid

B. Bicuspid

C. Monocuspid

D. Semilunar

What is the correct answer?

4

Appearance of offspring resembling their remote ancestor is called

A. Atavism

B. Lethality

C. Mutation

D. Progeny

What is the correct answer?

4

Lizards, snakes, crocodiles and turtles belong to the class

A. Aves

B. Reptilia

C. Mammalia

D. Amphibia

What is the correct answer?

4

Clotting of blood is

A. a chain reaction

B. reversible reaction

C. reflex action

D. no reaction

What is the correct answer?

4

Vitamin D deficiency leads to

A. sterility

B. pellagra

C. rickets

D. capillary fragility

What is the correct answer?

4

Accepted theory for the origin of life is

A. Cosmozoic theory

B. Biogenesis

C. Abiogenesis

D. Oparin's theory

What is the correct answer?

4

Which one of the following is not caused by bacteria?

A. Tuberculosis

B. Typhoid

C. Cholera

D. Mumps

What is the correct answer?

4

The gestation period for the elephant is

A. 10 months

B. 15 months

C. 22 months

D. 30 months

What is the correct answer?

4

Organisms that feed on the excreta of other organisms are called

A. autotrophs

B. heterotrophs

C. coprophagous

D. saprotrophs

What is the correct answer?

4

Decomposition of organic matter is due to

A. Virus

B. Fungi

C. Bacteria

D. None of these

What is the correct answer?

4

Hormones are carried from their place of production by

A. ducts

B. blood

C. lymph

D. muscus

What is the correct answer?

4

Blood of cockroach is

A. red

B. bluish

C. greenish

D. colourless

What is the correct answer?

4

The scientist who discovered the blood groups is

A. Landsteiner

B. TH Morgan

C. William Harvey

D. Darwin

What is the correct answer?

4

The two minerals required to keep teeth and bones intact and in good condition are

A. lead and zinc

B. calcium and phosphorus

C. copper and sulphur

D. iron and iodine

What is the correct answer?

4

The life cycle of Malarial Parasite consists of two phases in man. Where do they occur?

A. In RBC and liver cells

B. In WBC and RBC

C. In lymph

D. In gall bladder and pancreas

What is the correct answer?

4

The pH of normal urine of man ranges from

A. 6 - 8

B. 4.5 - 6

C. 2.5 - 6

D. 8 10

What is the correct answer?

4

Injection of insulin causes

A. increase in glucose in blood

B. decrease in glucose in blood

C. increase in blood pressure

D. decrease in blood pressure

What is the correct answer?

4

Late Blight' is a disease that affects the _______ crop.

A. coconut

B. cashew

C. potato

D. pepper

What is the correct answer?

4

Temperature treatment which shortens the vegetative period and hastens the flowering is called

A. Phototropism

B. Photoperiodism

C. Vernalisation

D. Thermoregulation

What is the correct answer?

4

Whooping cough is caused by

A. Salmonella

B. Bacillus pertussis

C. Variola

D. Vibriona

What is the correct answer?

4

The potato is a modified stem, is explained by the presence of

A. Branches

B. Leaves

C. Buds

D. Scale leaves and auxiliary buds

What is the correct answer?

4

The disease in which blood clotting does not take place is known as

A. Xerophthalmia

B. Haemopoeisis

C. Haemophilia

D. Haemoerythrin

What is the correct answer?

4

The counting of RBCs is done with

A. haemocytometer

B. haemoglobinometer

C. clinostat

D. thermometer

What is the correct answer?

4

Aphids are

A. insect pests

B. fungal pests

C. bacterial pests

D. viral pests

What is the correct answer?

4

What is an antigen?

A. Toxic substance

B. A kind of protein

C. Blood platelets

D. Blood corpuscles

What is the correct answer?

4

The 'graveyard of the RBC' refers to

A. spleen

B. liver

C. bone marrow

D. thymus

What is the correct answer?

4

The age of a tree can be determined by

A. counting the number of annual rings

B. thickness of the bark

C. the bulk of the tree

D. the number of leaves