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Quiz 81
Mdcat-past-papers - UHS Quiz
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Board: UHS |
1601. Which of the following is a key feature of RNA?
Deoxyribose and thymine
Double stranded and thymine
Ribose and uracil
Ribose and thymine
1602. Which of the following types of RNA makeup the largest proportion of total cellular RNA?
Messenger RNA
Ribosomal RNA
Transfer RNA
Catalytic RNA (ribozyme)
1603. The bacterium Treponema Pallidum is responsible for which sexually transmitted disease?
Syphilis
Chlamydia
Gonorrhea
Genital herpes
1604. Tissue fluid in a lymphatic system is called as:
Plasma
Matrix
Lymph
Blood
1605. Which one of the following biomolecules is a polymer/polysaccharide?
Sucrose
Pentose
Lactose
Glycogen
1606. Olfactory receptors are the type of:
photoreceptors
mechanoreceptors
thermoreceptors
chemoreceptors
1607. Which of the following organisms eliminate nitrogenous waste mainly in the form of uric acid?
Freshwater Fish
Amphibians
Birds
Mammals
1608. Which of the following cells possess Nissil's granules?
Nerve cells
WBC
RBC
Platelets
1609. Which part of human brain is involved in maintaining the posture and balance of the body?
Cerebrum
Cerebellum
Hypothalamus
Medulla oblongata
1610. Arthritis is:
Inflammation of joints
Herniation of intervertebral disc
Fusion of vertebral joint
tingling along the length of legs
1611. Which type of joint is present in pubis?
Fibrous joints
Immoveable joints
Cartilaginous joints
Freely moveable joints
1612. Which type of neurons stimulate muscles to contract in a reflex arc?
Motor neurons
Sensory neurons
Interneurons
Afferent neurons
1613. Which of the following statements best compares cell division in prokaryotic and Eukaryotic cells?
Eukaryotes divide by budding ; prokaryotes by mitosis
Eukaryotes use binary fission ; prokaryotes by meiosis
Eukaryotes divide by mitosis ; prokaryotes by binary fission
Both use mitosis by cell division
1614. Which of the following best describes "acquired characteristics" according to Lamarckism?
Traits caused by mutation
Traits inherited from parents
Traits developed by use or disuse
Traits selected by nature
1615. According to Lock and Key model, the active site is regarded as:
Rigid and specific
Flexible and specific
Rigid and non specific
Flexible and non specific
1616. Peptide bonds are important in protein because they:
Affect solubility
Hold R-groups
Link amino acid
help in releasing oxygen
1617. Why are retroviruses placed in a separate class of RNA viruses?
They always infect animal cells only
Their RNA acts directly as mRNA
They lack protein coats
They use reverse transcriptase to make DNA from RNA
1618. Reversible inhibitors differ from irreversible inhibitors because they:
Binds permanently and cannot be removed
Bind temporarily and can be removed
Permanently inactivate the enzyme
Change enzyme structure permanently
1619. Which is an enzyme activator secreted by the intestinal glands?
Amylase
Pepsinogens
Enterokinase
Lipase
1620. In which of the following combination, both components have Hyaline cartilage?
Epiglottis & intervertebral disc
Trachea & intervertebral disc
Nose & pinna
Nose & trachea
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