NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Zoology MCQs (Practice_Test 101 of 112)
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- Which one of the following arrangements is seen in a plasma membrane?
- Proteins embedded in lipid bilayer
- Lipids embedded in protein bilayer
- An outer lipid layer and an inner lipid layer
- Alternating protein and lipid layers
- The ribosomes are main1yconiposed of
- RNA core and lipid envelope
- DNA core and lipid envelope
- RNA and proteins
- DNA and proteins
- The end result of a mitotic cell division is
- equal distribution of chromatids into two daughter cells
- equal distribution of chromosomes into two daughter cells
- distribution of homologous chimosomes into two daughter cells
- random distribution of two chromatids into two daughter cells
- Which one of the following cell types does not divide in adult organisms?
- Intestinal epithelium
- Primary germ cells
- Neurons
- Corneal epithelium
- DNA synthesis is succeeded by a sequence of events during mitosis. Which one of the following sequences is correct?
- G1, G2 and M phase
- M phase, G1 and G2
- G1, M phase and G2
- G2, M phase and G1
- Each chromatid of a chromosome contains
- a single, linear DNA molecule
- two linear DNA molecules
- four linear DNA molecules
- variable number of linear DNA molecules
- The best way to demonstrate whether nuclear DNA is being replicated-in a cell is by
- phase-contrast microscopy
- thin layer chromatography
- gel electrophoresis
- autoradiography
- Law of independent assessment is NOT applicable in case of
- gene segregation
- sex-linked inheritance
- polyploidy
- conjugation.
- The insertion or deletion of a single base in a DNA strand is known as
- framshift mutation
- missense mutation
- nonsense mutation
- suppressor mutation
- The protozoan species Actinophris so⟋is commonly known as
- slipper animalcule
- sun animacule
- wheel animalcule
- homancule
- The disease Pyorrhoea is caused by which one of the following protozoan species?
- Leishmania donovani
- Trypanosoma gambiense
- Trichomonas buccalis
- Plasmodium vivax
- In which one of the following orders does Leishmania sp. Belong?
- Trichomonadida
- Kinetoplastida
- Cryptomonadida
- Chrysomonadida
- Consider the following statements:
- Xenopsylla belongs to the sub-class Pterygota of the class Insecta.
- Locomotory organelle of Mastigophora are flagella
- Euspongia is common bath sponge.
- Coelenterates are pseudocoelomates.
- Which of the above statements is⟋are correct?
- 1 alone
- 1 and 2
- 1,2 and 3
- 2,3 and 4
- In which one of the following animals does the same opening function both as the mouth and the anus?
- Ascaris
- Pheretima
- Peripatus
- Obelia
- Which one of the following features is NOT applicable to all the three helminthes, Taenia, Fasciola and Planar⟋a?
- Triploblastic forms
- Absence of metamerism
- Parasitism
- Absence of definite circulatory and respiratory systems