A virus<span> is a small </span>infectious agent<span> that </span>replicates<span> only inside the living </span>cells<span> of other </span>organisms<span>. Viruses can infect all types of </span>life forms<span>, from </span>animals<span> and </span>plants<span> to </span>microorganisms<span>, including </span>bacteria<span> and </span><span>archaea
</span>While not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles. These viral particles<span>, also known as </span>virions<span>, consist of two or three parts: (i) the </span>genetic material<span> made from either </span>DNA<span> or </span>RNA<span>, long </span>molecules<span> that carry genetic information; (ii) a </span>protein<span> coat, called the </span>capsid<span>, which surrounds and protects the genetic material; and in some cases (iii) an </span>envelope<span> of </span>lipids<span> that surrounds the protein coat when they are outside a cell. The shapes of these virus particles range from simple </span>helical<span> and </span>icosahedral<span> forms for some virus species to more complex structures for others. Most virus species have virions that are too small to be seen with an </span>optical microscope<span>. The average virion is about one one-hundredth the size of the average </span>bacterium<span>.</span>
The genetic variation between humans and orangutans is the greatest is the right option.
Explanation:
A phylogenetic tree is illustration which shows evolutionary relationship between different species. This concept is based on Darwin's descent with modification.
Human and orangutan are 97% similar in their DNA sequences.
The difference in DNA bases shows large genetic variations in both the species.
The species are organized on the basis of traits that are changed over time as compared to their ancestors as they evolve.
Less related species will have more differences in their DNA sequence.
The phylogenetic tree formed indicates that orangutan and human are less related to each other than other species.
Im not too sure what the answers you have are but cotton swab and put it in a bag if you write your own
Answer:
3.
Explanation:
Translation may be defined as the process of formation of protein product from the RNA molecules with the helps of enzymes and translation factors. Translation occurs in 5' to 3' direction.
There are 64 codons that codes for the twenty amino acids. Three codons are referred as stop codons that result in the chain termination of the translation. Three stop codons are UAA, UAG and UGA.
Thus, the correct answer is option (d).
The answer is an average couple is fertile for only 6-7 days. If a couple cannot produce healthy sperm and egg there are the various treatment to help infertile couples to become pregnant and can have their own child. Infertility happens if there is the failure to conceive consecutive 12 months despite the attempts.