Fill in the blanks to complete the narrative with choosing the appropriate word.
ID: 174666 • Letter: F
Question
Fill in the blanks to complete the narrative with choosing the appropriate word.
The History of DNA as Genetic Material
Genetic material has to satisfy 3 criteria. Genetic material must be able to encode (1) used by the cells to code for RNA or Proteins. Genetic Material needs to be (2) with a high level of accuracy to maintain the integrity of the original code. This genetic material must also be able to pass along to new cells via (3) when cells undergo cellular division or when a foreign entity infects the cells. The unity and diversity of life illustrated how organisms have descended from a common ancestor and through modification and (4) of the genetic code, we now have all of the many species and organisms that belong to the biosphere today. In the late 1800s scientists where convinced that (5) contained genetic material. However, there was much debate about whether DNA or Protein was responsible for being genetic material. Chromosomes are comprised of (6) which is a DNA+protein complex, specifically (7) as the protein portion. In 1920 (8) conducted an experiment. He used (9) rough and smooth strains. Rough strain injected into a mouse, the mouse (10). Smooth strain injected into the mouse, the mouse (11). Heat killed smooth strain injected into the mouse, the mouse (12). However when Heat-killed smooth strain was mixed with the rough strain and injected into the mouse, the mouse (13). This experiment baffled the researcher, but this was the first hint that (14) was the genetic material. The traits and characteristics of the smooth strain that made it virulent were transferred to the rough strain through a process called (15). In 1940, (16) expanded on the previous research. The DNA from the smooth bacteria was (17). Five samples were created. The (18) test tube contained only the Rough bacteria, which would not grow on the petri dishes. The second test tube contained smooth DNA + rough bacteria, (19) occurred and once plated on the petri dishes colonies grew. In the third test tube, smooth DNA + rough bacteria+ (20) added and no colonies grew on the petri dish. In the fourth test tube smooth DNA + rough bacteria+ (21) knocking out ribonucleic acid function was added and colonies grew on the petri dish. In the fifth test tube smooth DNA + rough bacteria+ (22) thus preventing protein production and colonies grew on the petri dish. This experiment shows that in test tube 3, no colonies grew because smooth strain (23) was blocked/destroyed by (24). Thus (25) is the transforming principle .
Answer choices mal he used more than once RNA Chromatin AC CD Histone DNA AD CE DNAse AE DE Information Griffith RNAse BC ABC Avery, McLeod, BDO ABD Protease McCarty AB chromosomes BE Hershey & Chase ABE Replicated Transmission Lived Died Variation Purified BCD Transformation S. pneumoniae BCE Control CDEExplanation / Answer
1). Genetic material has to satisfy 3 criteria. Genetic material must be able to encode the phenotype used by the cells to code for RNA or Proteins.
2). Genetic Material needs to be duplicated with a high level of accuracy to maintain the integrity of the original code.
3). This genetic material must also be able to pass along to new cells via replication when cells undergo cellular division or when a foreign entity infects the cells.
4). The unity and diversity of life illustrated how organisms have descended from a common ancestor and through modification and evolution of the genetic code, we now have all of the many species and organisms that belong to the biosphere today.
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