Bacteria, viruses, fungi, Protozoa, and Helminths
An argument.
An opinion is never correct nor incorrect they are all valid in their own right. So that eliminates b. It’s true that it can’t be proven to true or false however, some opinions have no evidence so they have no warrant to be proven or disproven. An argument however, is how you argue for what you believe in, you provide examples, to prove you’re right. To prove your opinion so I believe that D is the best option here.
Answer:
The frequency of the recessive allele, t is f(t) = q = 0.29.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Answer:
1. why: to protect the organism against pathogenic infections
2. how: by using genome engineering techniques. For example, by using the CRISPR/Cas9 genome editing system in order to enlarge telomeres and thus avoid the negative effects of aging (i.e., tissue/organ atrophy).
Explanation:
The thymus plays a central role in immunity since in this organ thymus cell lymphocytes (T cells) mature into immunocompetent T-cells that initiate immune responses against pathogenic infections. Moreover, a particular type of B lymphocytes known as thymic B cells also resides at the thymus. It has been proposed that thymic B cells might be involved in the negative selection of T cells. Thus, the thymus plays a critical role in protecting the organism from infections, thereby it would be imperative to avoid thymus atrophy if human life is expanded. Nowadays, we know that telomere length shortens with age, thereby it is expected that genome engineering techniques capable of restoring telomere length might eventually avoid age effects such as, in this case, thymus atrophy. In this regard, the CRISPR-Cas 9 system is a versatile low-cost genome engineering tool that might be used for the addition of nucleotides at telomere ends.
