Fundamental genetics Welcome to your Fundamental genetics 1. Allelic variation contributes to continuous as well as discontinuous variation in the population, True False None 2. Which of the following best describe the role of genes in biology? They can replicate but do not play any role in the structural organisation of an individual They can replicate and carry necessary information required for the unique structural organization In the constantly changing environment they can mutate and help in evolution 2 & 3 None of the above None 3. In which of the following organism, the process of conjugation was discovered? Escherichia coli Neurospora crassa Bacillus thuringiensis Bacillus subtilis None 4. How many bacterial cells a colony contains when it becomes visible to naked eyes? 10^7 10^2 1 10^13 None 5. The most important function of the DNA in biology is to… Produce a DNA molecule by replication Provide the template for the replication Molecular signalling Provide the source of information in the form of nucleotide sequence code None 6. Which of the following is NOT true about the Sutton-Bovery theory of chromosomes? Mendel’s observations were matching with the behaviour of the chromosomes during meiosis Sutton-Boveri theory suggests that genes are located on the Chromosomes Suttone-Bovery theory was proved with the direct evidence None of the above None 7. Auxotrophic mutants are Able to grow on minimal medium Are the mutants produced after the transfer of the genetic material from donor to recipient Fail to grow unless and until supplied with one or more specific nutritional factor The one who posses the antibiotic resistance plasmid None of the above. None 8. What are prototrophic bacteria? Prototrophic bacteria can grow on minimal medium Prototrophic bacteria are those which require the medium supplemented with special growth promoting nutrients The bacteria those require antibiotics for growth. All of the above I and II None 9. Heteromorphic chromosomes are, The chromosomes bearing more than one copy of genes Chromosome pair with non identical chromosomes Stage of the chromosomal structures at the interphase of cell cycle as all the chromosomes are in decondensed state and don’t have any definite shape None of the above None 10. Which of the following is the smallest chromosome in human cell? Y chromosome Chromosome 21 Chromosome 22 Chromosome 20 None Please fill in the comment box below. Time's up
