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Answers: 1. b 2. b 3. d 4. b 5. b 6. c 7. c 8. d 9. b 10. d 11. d 12. b 13. c 14. b 15. a 16. a 17. d 18. c 19. d 20. d اذا اكو اجابه خطئانه بيه نبهوا

1. Which of the following is not a major group of organisms that can cause human infectious diseases? a) Protozoa b) mycotoxin c) Viruses d) Helminthes 2. What type of organism do fungi belong to? a) Prokaryotes b) Eukaryotes c) Protists d) Helminths 3. Which of the following is a characteristic that distinguishes viruses from cellular organisms? a) Presence of a nucleus b) Ability to replicate independently c) Presence of cytoplasm d) Ability to synthesize proteins 4. How do eukaryotic cells replicate? a) Binary fission b) Mitosis c) Both binary fission and mitosis d) None of the above 5. Which of the following organisms can replicate extracellularly? a) Viruses b) Bacteria c) Protozoa d) Helminths 6. Which of the following organisms is classified in the animal kingdom? a) Fungi b) Protozoa c) Helminths d) Viruses 7. Which of the following organisms are commonly referred to as parasites? a) Viruses and bacteria b) Fungi and protozoa c) Protozoa and helminths d) Bacteria and viruses 8. Which of the following organisms is not a cellular organism? a) Bacteria b) Fungi c) Protozoa d) Viruses 9. Which of the following organisms is a member of the kingdom Protista? a) Protozoa b) Fungi c) Slime molds d) Algae 10. Which of the following organisms is not a member of the kingdom Fungi? a) Yeasts b) Molds c) Oomycetes d) Protozoans 11. Which of the following organisms requires a living host cell for growth and replication? a) Bacteria b) Fungi c) Protozoa d) Viruses 12. Which of the following organisms is a prokaryote? a) Fungi b) Bacteria c) Protozoa d) Helminths 13. Which of the following organisms is a multicellular eukaryote? a) Viruses b) Bacteria c) Helminths d) Protozoa 14. Which of the following organisms is a unicellular eukaryote? a) Fungi b) Protozoa c) Helminths d) Viruses 15. Which of the following organisms is a member of the kingdom Animalia? a) Helminths b) Protozoa c) Fungi d) All of the above 16. What is the primary method of replication for prokaryotic cells? a) Binary fission b) Mitosis c) Reassembly of viral particles d) None of the above 17. Which of the following organisms lack the ability to synthesize their own proteins and generate energy? a) Bacteria b) Fungi c) Protozoa d) Viruses 18. Which of the following organisms are distinguished from plants and animals by being either unicellular or relatively simple multicellular? a) Bacteria b) Fungi c) Protozoa and Fungi d) Protozoa and Helminths 19. Which of the following organisms are considered the most distinct from other groups of organisms? a) Bacteria b) Fungi c) Protozoa d) Viruses 20. Which of the following organisms, in addition to viruses, require living host cells for growth and replication? a) Bacteria b) Fungi c) Protozoa d) Rickettsia and Chlamydia

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Which of the following Correct discripe for DNA? A.. contains uracil bases B.backbon of phosphatase C.Thymine bases D.ribose sugar

Who is transfering the genetic information including initiation.elongation and termination A.. Single strand DNA B..tRNA C..mRNA D..rRNA

Genetic information carried by mRNA is used to synthesis a polypeptide chain ⛓️? A.translation B.transcription C.central dogma D.initation

What is the enzyme or protein that prevents the attachment between strands? A..Ligase b.topoisomeras C.Singl strand binding D.primase

What is the number of step that Accur enzyme polymerase type 1? A.1 B-4 C- 5 D_6

What enzyme that added the primer? a.polymeras I b.primase c.polymeras III d.helicas

Which enzyme that replacing RNA primase with nucleotides during DNA 🧬 replication? A - polymerase type3 B- polymerase type 1 C.SSB protein D.ligase

Codons that causes protein synthesis stop 🛑 A.initial codon B.end codon C.different codon D.amino acid codon

Which enzyme that full the fragments Okazaki in complement replication? A.. polymerase type3 b.polymeras I C.ligase D..primase

The two step which converted genetic information from aDNA into RNA and then from RNA into protein called A.. transcription B.translation C.central dogma D.DNA replication

During replication DNA 🧬 which strand that forming fragments A.leader strand B.binding strand C.lagging strand D.RNA strand

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الاجوبه :- C B B C A C

Which of the following is NOT a component required for DNA replication? a) DNA polymerase b) Helicase c) RNA polymerase d) Primase Which direction does DNA polymerase synthesize new DNA strands? a) 3' to 5' b) 5' to 3' c) 5' to 5' d) 3' to 3' Which of the following best describes the function of the DNA codons UAA, UAG, and UGA? A) Start codons, initiating the process of translation. B) Stop codons, signaling the termination of protein synthesis. C) Codons that code for specific amino acids. D) Regulatory codons, controlling gene expression. Which of the following is NOT a stop codon? a) UAG b) UGA c) AUG d) UAA What is the function of stop codons in protein synthesis? a) They signal the end of translation. b) They initiate translation. c) They indicate the start of transcription. d) They code for specific amino acids. Which of the following statements about the structure of DNA is correct? A) DNA is a single-stranded molecule. B) DNA contains the nitrogenous bases adenine, guanine, cytosine, and uracil. C) DNA is composed of a sugar-phosphate backbone with nitrogenous bases projecting inward. D) DNA strands run in parallel orientation to each other. هذا كوز السابعه احياء نظري

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