Home
Class 12
BIOLOGY
In Dengue virus infection, patients ofte...

In Dengue virus infection, patients often develop haemorrhagic fever due to internal bleeding. This happens due to the reduction of -

A

platelets

B

RBCs

C

WBCs

D

lymphocytes

Text Solution

Verified by Experts

The correct Answer is:
A

Dengue fever also known as break bone fever is an infections tropical disease caused by dengue virus. This results in bleeding, low levels of blood platelets and blood plams leakage.
Promotional Banner

Similar Questions

Explore conceptually related problems

Guttation happens due to the development of

In a forest, animals like voles and wood lice feed on plant roots and barks respectively. Among the other carnivores, foxes, shrews and owls are present in that forest. Following predictions are made by a group of observers who have visited the forest : 1.If the roots of the tree develop a disease, then voles and foxes will starve and not the owls. 2. Population of voles is dependent on wood lice population through food web. 3. If owl population declines, it will indirectly affect wood lice population. 4. If barks of tree are affected due to a disease, then reduction of wood lice will affect the shrew population forcing owls to eat more voles. Which of the above predictions is/are correct?

Apple fruit develop internal cork due to deficiency of Or 'Petiole crack' is caused by the deficiency of

Apart from hyper acid secretion, peptic ulcers are also developed due to bacterial infection. The causative agent is

A rectangular glass block of thickness 10 cm and refractive index 1.5 placed over a small coin. A beaker is filled with water of refractive index 4//3 to a height of 10 cm and is placed over the glass block. (a) Find the apparent position of the object when it is viewed at near normal incidence. (b) if the eye is slowly moves away from the normal at a certain position, the object is found to disappear, due to total internal reflection. At what surface does this happen and why ?

Assertion: HIV infection more often spreads due to conscious behaviour patterns and is not something that happens inadvertently , like pneumonia or typhoid. Reason : Of course , infection of AIDS in blood transfusion patients newborns (from mother) etc. may takes place due to poor monitoring.

Transplantation of tissues/organs to save certain patients often fails due to rejection of such tissues/organs by the patient. Which type of immune response is responsible for such rejections?

Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent of water due to the development of internal fertilization and the presence of a special membrane ( amnion) around the developing embryo.