Endospore forming rods Genetic homology determines evolutionary relationship amo
ID: 81865 • Letter: E
Question
Endospore forming rods Genetic homology determines evolutionary relationship among organisms based on a) the similarity of antibody reactions between species c) morphological similarities between species d) the number of traits shared by two organisms In translation, __ bind to the __ on __ a) sigma factor, promoter, DNA b) repressor, operator, DNA c) ribosomes, ribosome bonding site, MRNA d) DNA polymerase, origin of replication; DNA Protein synthesis in bacteria: a) can occur with several ribosomes attached to the same MRNA molecule b) uses very little of a bacterial cell's energy c) can occur at the same time as an mRNA is being transcribed d) two of the above In the lactose (lac) operon, which of the following is a protein? a) Repressor b) Operator c) Regulator d) Promoter Which of the following happens earliest in a typical bacteriophage lytic cycle? a) phage inserts its DNA into the host cell b) phage DNA is inserted into the bacterial chromosome c) Bacterial cell lyses d) Viral DNA and proteins are produced by the host cell The CRISPR Cas-9 is a __ system that protects organisms from __ it is now being adapted as a __. a) mammalian; oxidative stress; antioxident b) mammalian; mutations; therapy c) bacteria; foreign DNA;gene editing technique d) fungal; UV rays; sunblock e) plant; infection; vaccine A virus's ability to infect an animal cell depends primarily up on the A) host cell's ability to phagocytize viral particles, B) presence of receptor sites on the cell membrane, C)type of viral nucleic acid, D)enzymatic activity of a host cell, E) presence of pili on the host cell wall.Explanation / Answer
18. The CRISPER Cas9 is a bacterial system that protects organism from foreign DNA . It is now being adapted as gene editing techniques.
19.A virus's ability to infect an animal cell depends primarily upon the host cells ability to phagocytize viral particles.
17. In bacteriophage lytic cycle, first phage inserts its DNA into the host cells .
16. In lac operon, Repressor is a protein.
14. In translation ribosome binds to the ribosome binding site on mRNA.
13. Genetic homology determines evolutionary relationships among organism based on the similarity of DNA between species.
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