Fill in the blanks:
(i) Typhoid fever could be confirmed by _____.
(ii) ____ responsible for disease pneumonia.
(iii) Malignant malaria is caused by____.
(iv) ______is the vector of disease like dengue and chikungunya.
(v) The yellowish fluid _____secreted by mother during initial days of lactation has abundant antibodies (IgA) to protect the infant.

Colostrum secreted by the mother during initial days of lactation has abundant IgA antibodies to protect the infant. This is an example of

The yellowish fluid "colostrum" secreted by mammary glands of mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as :

Read the following Statements A-D. a) Memory- based innate immunity evolved in higher vertebrates based on the ability to differentiate foreign organism (e.g. pathogen) from self-cells. b) The exaggerated response of the immune system to certain antigen presents in the environment is called allergy. c) Passive immuntiy is slow and takes time to give its full effective response. d) The Yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies to protect the infant. How many of the above statements are false?

Select the correct option to fill up the blanks. (i) Diseases which are easily transmitted from one person to another, are called ______ diseases. (ii) In human body, parasite of malaria initially multiplies within the ____ and then attack the ______. (iii) _____ is the yellowish fluid secreted by mother during the initial days of lactation. (iv) _____ and ____ are the primary lymphoid organs.

Read the given statements carefully. (i) Innate immunity is a sppecific type of defence, that is present at the time of birth. (ii) Malignant malaria is caused by Plasmodium falciparum. (iii) Malaria could be confirmed by Widal test. (iv) Active immunity is slow and takes time to give its full effective response. (v) Saliva in the mouth acts as physiological barrier for pathogens. Which of the above statements are correct ?

Fill in the blanks : (i) ____ are the secretions of ductless endocrine glands and the study of endocrine glands and role of their secretions is called____. (ii) Steroid hormones are secreted by____, testes, ovaries and ____ . (iii) ____ and ____ from posterior lobe of pituitary are short peptide hormones. (iv) ___ and ___ are aminoacid derivative hormones commonly called catecholamines. (v) Steroid hormones have their receptors in the ____ of the target cells while protein hormones have their receptors on the ____ of the target cells. (vi) Hyposecretion of thyroid hormones causes ____ in infants and ___ in adults. (vii) Anterior lobe of pituitary is also called ___ while posterior lobe or pars nervosa is also termed ____ . (viii) Excess of growth hormone since childhood leads to disease called ____ and its excess after adolescence causes disease___ .

Sickle cell anemia is a genetic disorder where the body produces an abnormal hemoglobin called hemoglobin S. Red blood cells are normally flexible and round, but when the hemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anemia is caused by mutations in a gene called HBB. It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. There are three inheritance scenarios that can lead to a child having sickle cell anemia: - Both parents have sickle cell trait - One parent has sickle cell anemia and the other has sickle cell trait - Both parents have sickle cell anemia The following statements are drawn as conclusions from the above data (Kenya). I. Patients with SCD (Sickle Cell Disease) are less likely to be infected with malaria. II. Patients with SCD (Sickle Cell Disease) are more likely to be infected with malaria. III. Over the years the percentage of people infected with malaria has been decreasing. IV. Year 2000 saw the largest percentage difference between malaria patients with and without SCD. Choose from below the correct alternative.