NEET UG 2024 — Body Fluids and Circulation

Match List I with List II : \begin{array}{|l|l|l|l|}\hline & List I & & List II \\\hline A. & P wave & I. & Heart muscles are electrically silent. \\\hline B. & QRS complex & II. & Depolarisation of ventricles. \\\hline C. & T wave & III. & Depolarisation of atria. \\\hline D. & T-P gap & IV. & Repolarisation of ventricles. \\\hline\end{array} Choose the correct answer from the options given below :

A person with blood group $\mathrm{ARh}^{-}$can receive the blood transfusion from which of the following types? A. $\mathrm{BRh}^{-}$ B. $\mathrm{ABRh}^{-}$ C. $\mathrm{ORh}^{-}$ D. $\mathrm{ARh}^{-}$ E. $\mathrm{ARh}^{*}$ Choose the correct answer from the options given below :

The mother has $\mathrm{A}+$ blood group the father has $\mathrm{B}+$ and the child is $\mathrm{A}+$. What can be the possibility of genotypes of all three, respectively? A. $\quad I^A I^A\left|I^B i\right| I^B i$ B. $\quad I^A I^A\left|I^B i\right| I^A i$ C. $\quad I^B i\left|I^A I^A\right| I^A I^B$ D. $\quad I^A I^A\left|I^B I^B\right| I^A i$ E. $\quad I^A i\left|I^B i\right| I^{A_i}$ Choose the correct answer from the option given below:

Given below are two statements : Statement I : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced. Statement II : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes. In the light of above statements, choose the most appropriate answer from the options given below :

As per ABO blood grouping system, the blood group of father is $\mathrm{B}^{+}$, mother is $\mathrm{A}^{+}$and child is $\mathrm{O}^{+}$. Their respective genotype can be A. $\quad{ }^{\mathrm{B}} / / \|^{A^A} / / i \mathrm{i}$ B. $\left.\quad I^{\mathrm{B}}\right|^{\mathrm{B}} /\left.\left.\right|^{\mathrm{A}}\right|^{\mathrm{A}} / \mathrm{ii}$ C. $|\mathrm{A}| \mathrm{B} /\left.i\right|^{\mathrm{A}} /\left.\right|^{\mathrm{B}} \mathrm{j}$ D. $\quad \mathrm{A}_{\mathrm{A}} / I^{\mathrm{B}} / /^{\mathrm{A}} \mathrm{i}$ E. $\quad \mathrm{il}^{\mathrm{B}} /\left.\mathrm{i}\right|^{\mathrm{A}} /\left.\mathrm{I}^{\mathrm{A}}\right|^{\mathrm{B}}$ Choose the most appropriate answer from the options given below :

'Lub' sound of Heart is caused by the ______

Following are the stages of pathway for conduction of an action potential through the heart A. AV bundle B. Purkinje fibres C. AV node D. Bundle branches E. SA node Choose the correct sequence of pathway from the options given below