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Current Affairs January 2024

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4

The suggestion that the chromosomes are the carriers of hereditary material was first made by

A. Johanson

B. Flemming

C. Sutton and Boveri

D. Morgan

Correct Answer :

C. Sutton and Boveri


Related Questions

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4

The counting of RBCs is done with

A. haemocytometer

B. haemoglobinometer

C. clinostat

D. thermometer

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4

When one gene controls two or more different characters simultaneously, the phenomenon is called

A. Apomixis

B. Pleiotropy

C. Polyploidy

D. Polyteny

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4

The cavities of the brain are filled with

A. Blood

B. Lymph

C. Water

D. Cerebrospinal fluid

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4

The function of a cell wall is

A. to give definite shape to the cell

B. to provide mechanical strength and protection to the cell

C. to prevent the cell from desiccation

D. All the above

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4

The science of improving the hereditary qualities of future generations of mankind is referred to as

A. genetics

B. eugenics

C. epigenesist

D. epistasis

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4

Sexual selection theory was propounded by

A. Wallace

B. De Vires

C. Lamarck

D. Charles Darwin

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4

Mouth and foot diseases in cattle are caused by

A. Bacteria

B. Virus

C. Fungi

D. Pennicilium

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4

The 'germ theory of disease' was propounded by

A. Joseph Lister

B. Robert Koch

C. Louis Pasteur

D. Jacob Heule

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4

The disease Goitre is caused in persons who do not have in their diet sufficient

A. calcium

B. sodium

C. iodine

D. iron

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4

Which among the following is the best source of proteins?

A. apples

B. butter

C. beans

D. fish

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4

One of the following disease cannot be prevented by the DPT (triple-antigen) immunization of children.

A. Tetanus

B. Tuberculosis

C. Whooping cough

D. Diphtheria

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4

Metastasis' is the process by which

A. cells divide rapidly under the influence of drugs

B. cancer cells spread through the blood or lymphatic system to other sites or organs

C. the chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles

D. cance cells are successfully inhibited to divide any futhere

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4

Which one of the following acts as a communication system?

A. Blood

B. Nerve

C. Lymph

D. Enzymes

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4

Phototropism means that plants react to the direction of

A. sound

B. wind

C. light

D. gravity

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4

The bone cells are connected with each other by

A. Haversian canal

B. canaliculi

C. capillaries

D. matrix

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4

The hypothesis that living matter originated in the past from non-living matter is supported by

A. Fossil records

B. Miller's experiments

C. Pasteur experiment

D. Spallanzeni experiment

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4

One of the following is called a feminine hormone. Which one is it?

A. Oestrogen

B. Testosterone

C. Pituitrin

D. Thyroxine

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4

The part of the human brain concerned with sight is the

A. Frontal lobe

B. Parietal lobe

C. Temporal lobe

D. Occipital lobe

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4

The principal reason why it is better to have two eyes than one is that

A. by having two eyes, one can distinguish colours more easily

B. by having two eyes, one can easily see in the dark and dim light

C. this gives the man a type of vision known as mosaic vision

D. this enhances depth perception in the humans

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4

If a father has blood group A and the mother has blood group 0, which one of the blood groups may be found in their progeny?

A. A

B. AB

C. O

D. Both (a) and (c)

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4

The medulla oblongata encloses the

A. optic lobe

B. optic capsule

C. second ventricle

D. fourth ventricle

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4

The theory that all animals and plants are made up of cells and they could arise only from pre-existing cells was propounded by

A. Robert Hooke

B. Matthias Schleiden and Theodore Schwann

C. Purkinije

D. Leuwenhoek

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4

Bovine Spongiform Encephalopathy refers to

A. Brain Fever

B. Mad Cow Disease

C. Enteric Fever

D. Poultry Diarrhoea

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4

Mutations could be created by X-rays. This was found by

A. Muller

B. Morgan

C. Meyer

D. Flemming

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4

The artificial kidney operates on the principle of

A. dialysis

B. diffusion

C. osmosis

D. active transport

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4

Calcium and phosphorus assimilation will depend on sufficient intake of

A. vitamin B complex

B. vitamin D

C. vitamin A

D. vitamin C

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4

Who coined the term gene?

A. Mendel

B. Devries

C. Jacob and Monod

D. Johanson

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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

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4

The plants will stop growing if the shoot tip is cut off because

A. shoot tip produces growth hormones

B. shoot tip contains meristematic cells

C. shoot tip is the growing part

D. the plant dies

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4

Food substances are substances by

A. hormones

B. enzymes

C. vitamins

D. zymogens