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Mdcat-past-papers - UHS Quiz

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1621. According to Lamarck, the evolution of long necks in giraffes is explained by:



1622. The process of spermatogenesis occurs in which part of the male reproductive system?



1623. Which layer of uterus nourishes the embryo after implantation?



1624. The main role of mRNA during protein synthesis is to:



1625. Glycoproteins are formed as a result of the combination of:



1626. A student observed a boundary in both plant and animal cells that controls entry and exit of substances. Which of the following structures is likely being observed?



1627. If a normal person marries with colour blind female what will be the possibility of normal male child:



1628. Which of the following characters is shared by both skeletal and cardiac muscles?



1629. Which of the following muscle types are involuntary in action?



1630. In which of the following combinations, both components have non-striated muscle fibers?



1631. Value of R gas constant in J mol^−1 K^−1.



1632. Which of the following best explains why phenol reacts with aqueous NaOH, but alcohols do not?



1633. In propene pi-bond is formed by sideway overlap of:



1634. An enzyme used to decompose the lipids into fatty acids in our alimentary canal is:



1635. Molecules having one lone pair and three bond pairs have geometrical shape :



1636. Conversion of dihaloalkane into alkyne does not involve:



1637. Majority of reactions taking place at ordinary temperatures with negative delta H are :



1638. Which one of the following is a coinage metal :



1639. Consider the given balanced chemical equation: 2H2 + O2 = 2H2O. If 4 g of H2 reacts with 32 g of O2 to produce 28 g of H2O, what is the percentage yield of the reaction? (Molar mass of H2 = 2 g/mol, O2 = 32 g/mol and H2O = 18 g/mol)



1640. Amount of energy needed to weaken the existing bonds to an extent that can be broken through collision is called: