What are the characteristics of bacteria? what are the characteristics of viruses? be specific in describing the size, structure, shape, and reproductive cycle of each.

Characteristics of bacteria:

size: The size of bacteria varies from their shapes like spherical bacteria has a diameter of 0.5-2.0 micron, rod-shaped bacterias length of 1-10 micron

structure: Bacteria are prokaryotic, unicellular microorganism. There are no membrane-bound organelles and true nucleus, they have the cell wall, DNA is in the form of nucleoid or linear plasmid.

shape: The most common three shapes of bacteria are coccus (spherical), bacillus (rod-shaped), and spiral. Exception is polymorphic bacteria which can have different shapes. They can be filamentous, star-shaped, rectangular also.

reproductive cycle: Bacteria reproduce asexually by a process called as binary fission, budding and sporulation. The binary fission results in the formation of two genetically identical cells. Their growth is exponential. They can exchange genetic information with each other by the process of conjugation, transduction, or transformation.

Characteristics of virus:

size: virus range from 20 to 400 nanometres in diameter much smaller than bacteria.

structure: A typical virus consists of single or double-stranded RNA or DNA, protein coat k/a capsid and a lipid envelope

shape: It can be hellical, polyhedral, icisahedron depending on the capsid pattern

reproductive cycle: Virus replicate or reproduce inside the host body by the process of lytic infection. In lytic cycle virus attaches itself to the host cell and injects the host cell with its nucleic acid. They use the replication machinery of the host cell to replicate their DNA and eventually new protein or virus.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.