encoding toxic proteins of capsid... dramatically enhancing the rate of viral Q.
ID: 301648 • Letter: E
Question
encoding toxic proteins of capsid... dramatically enhancing the rate of viral Q.4. Prions aret rethat are thought to cause disease by inf A) RNA molecules 8) an abnormal type C DNA molecules .. jumping around the genome and mu proteins encoding toxic D) mutant DNA molecules E) abnormally shaped proteins... inducing similar but normally shaped pro the brain to adopt the abnormal form Q.5. A gram-negative cell wall consists of_ A) cholesterol and peptidoglycan B) peptidoglycan and cellulose C) a thin layer of peptidoglycan surrounded by a capsule D) a thin layer of peptidoglycan surrounded by an outer membrane conta lipopolysaccharides E) a thick layer of peptidoglycan surrounded by an outer membrane cont lipopolysaccharides Q.6. Plasmids A) are transferred from one bacterium to another by conjugation B) often contain antibiotic resistance genes C) allow bacteria to survive adverse conditions D) replicate independently of the main chromosome E) All of the listed responses are correct. Q.7. Which of the following is a difference between bacteria and archa A) Only bacteria have circular chromosomes B) They have different chemicals in their cell membranes and cell wallExplanation / Answer
Q 4.
Answer: Option E.
Explanation: The unusual form of protein which is found inside the body cause the various problem of neurodegenerative disorder. From the normal version of protein folding, the prion form of protein changes their folding to cause the disease.
Q 5.
Answer: Option D.
Explanation: Bacteria are distinguished based on the gram-positive or gram-negative cell wall. This difference brings unique feature of the bacteria. Gram-negative bacteria consists of an extra outer layer for the protection. It is a thin layer made up of the peptidoglycan layer. Gram-negative bacteria contain more lipid molecules within it. These peptidoglycan layers made up polymers of NAG ( N- acetylglucosamine) and NAM ( N- acetylmuramic acid) for firm structure
Q 6.
Answer: Option E.
Explanation: Plasmid is generally the unique feature of bacteria. They are the extra chromosomal material which helps in the various area of recombinant biology. This extra chromosomal material replicates by themselves, used in inserting a large piece of DNA into the plasmid and this plasmid can be transferred into various bacterial for cloning purpose. In order to survive in another organism, it contains the resistance gene built into it.
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