Slow reproduction process is a disadvantage of sexual reproduction. So option A is correct.
Sexual reproduction is much slower than asexual form of reproduction and the meiosis process is much longer and complex than mitosis. The process of sexual reproduction depends on the fertilization and zygote formation which are time consuming processes. This longer duration of reproduction process leads to lesser number of individuals in the population. In this case there may be instances of producing only one organism per year and if by chance no offspring is produced for certain number of years can lead to extinction of the species.
The Pros are that Doctors can help prevent certain diseases, help cure certain cancer, and help treatments get stronger.
The Cons is that someone people die from these injections, get an infection making a bigger disease, and or being cured but having killer side affects.
Answer: start codon AUG of mRNA
Explanation:
The ribosomal assembly consist of two receptor sites, the P and A sites. The P site carries the peptidyl-tRNA, the growing peptide chain while the A site carries the new incoming tRNA with the amino acid to be added next.
The mRNA signal the initiation process with it start codon AUG. Because the start codon AUG codes for the amino acid methionine. A tRNA attach to methionine (tRNA-Met) binds to the start codon. The anti-codon UAC of the met-tRNA is correctly base pairing with the AUG codon on mRNA.
Answer: The best way to know is to differentiate between types of plasmids whether or not this resistance is due to a single shared plasmid with all three resistance genes.
Explanation:
By way of definition, a plasmid is a small, circular piece of DNA that is different than the chromosomal DNA, which is all the genetic material found in an organism’s chromosomes. It can replicate on their own by using chromosomal DNA. Plasmids are mainly found in bacteria, but can also be found in archaea, multicellular organisms. Plasmids usually carry at least one gene, and many of the genes that plasmids carry are beneficial to their host organisms. Plasmids have separate genes from their hosts, they are not considered to be independent life.
Therefore in a hospital where there has been an outbreak of several species of bacteria, each carrying resistance to three drugs (streptomycin, gentamicin, and penicillin), one of the type of plasmids that shows this resistance is called resistance plasmids or R plasmids.
Resistance or R plasmids contain genes that help a bacterial cell defend against environmental factors such as poisons or antibiotics. Some resistance plasmids can transfer themselves through conjugation. When this happens, a strain of bacteria can become resistant to antibiotics. For example, gonorrhea or tuberculosis infection has become so resistant to a class of antibiotics called quinolones that a new class of antibiotics, called cephalosporins, has started to be in use. The bacteria may even become resistant to these antibiotics within five years. It is important to know that overuse of antibiotics to treat other infections, like urinary tract infections, may lead to the proliferation of drug-resistant strains.
Answer:
If you had to guess the most abundant organism on the whole planet, you'd probably think of ants or, maybe, bacteria. But a newly discovered virus might trump them all. Pelagibacter ubique is often cited as the most common organism ever: it's a third of all the single-celled organisms in the ocean.
Explanation:
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