M phase of mitosis and the M phase of meiosis occur post-interphase. However, their processes differ significantly in how their chromosomes are organized and behave<span>.... The pairing of homologous </span>chromosomes<span> and the process of crossing over exclusively </span>happen<span> during </span>meiosis<span>.</span>
I believe the first option should be 2, and for the second options, number 2 is right.
Response:
B. Microorganisms have the capability to generate distinct proteins that are beneficial for genetic investigations
Rationale:
Biodiversity encompasses the variety of living organisms present on our planet. It is a crucial aspect of ecosystems since these organisms are interconnected. Hence, a decline in biodiversity will have repercussions for the ecosystem.
When considering biodiversity, a typical person often thinks only of visible organisms, but diversity also exists among microscopic entities.
Human activities are threatening not just larger creatures but also the tiny organisms. Microbes are essential to our existence; for instance, they are utilized by researchers in the fields of genetics and molecular biology. They also produce proteins that are ingested by humans.
Therefore, Option-B is the accurate choice.
Response:
B. The meanings of the prefixes chemo- and photo- point to the source of electrons.
Explanation:
The term chemo refers to chemical/drug, whereas photo relates to light. This can be demonstrated through the following examples:
Chemotherapy = treatment using chemicals
Phototherapy = treatment utilizing light
