Answer: Tightly wound chromosomes, composed of DNA, must unwind before replication. Cell replication splits a cell into two parts, both of which become new, fully functioning cells. Before this can happen, however, cells require a full complement of DNA for each of the new daughter cells that will form as a result of the split. Because of this, DNA makes a copy of itself in a process known as replication during interphase, a stage that occurs before cells divide.
Cell Phases: Mitosis is the process by which parent cells each divide into two identical daughter cells. However, this majority of the cell's time is spent in interphase, during which it performs normal metabolic functions necessary for the organism, such as manufacturing protein. DNA occurs during the S phase of interphase, sandwiched between the G1 and G2 phases. The cell uses checkpoint signals to ensure at the end of G1 that it is big enough to replicate and at the end of G2 to determine whether or not DNA replication has succeeded. If so, the cell can undergo mitosis, at which point DNA winds up tightly for easy transport during the process.
DNA Replication: Replication begins with DNA unwinding and unzipping, its two strands coming apart. While only one side is the “correct” code, containing the actual genetic information used to build the organism’s proteins, both can be the base for a new strand of complete DNA. The enzyme DNA polymerase matches up each base with the correlating base: adenine with thymine and guanine with cytosine. When each pre-existing base has been matched to a nucleotide, which also contains the sugar and phosphate of the DNA’s backbone, the strand is complete.
Answer:
Explanation:
Mutualism is a type of relationship where the organism involved both benefit from the relationship. This so true of tapeworms and shrimp as the infection caused by tapeworm on the shrimp bring about longetivity of the shrimp because it help them to survive in water containing arsenic toxins. Tapeworm lives on it host the shrimp and shrimp also benefit from tapeworm through its infection.
Answer:
you can also assume that all cnidarians are multicellular and heterotrophic - meaning they must consume their food in some way.
Explanation:
Answer;
To meet the patient's own special needs and circumstances.
Explanation;
-Integrative therapy or treatment focuses on the goals of the patient and family in the context of values, culture, and community. It is a progressive form of psychotherapy that combines different therapeutic tools and approaches to fit the needs of the individual client.
-Integrative therapy is more inclusive of the client than traditional forms of therapy, where the client plays a less active role in treatment.
-Integrative psychotherapists consider the individual characteristics, preferences, needs, physical abilities, spiritual beliefs, and motivation level of their clients and use their professional judgment to decide the best approach to therapy for each client.
Answer:
Ralph is looking at a vein (likely a muscular vein).
Explanation:
Of all three great types of vessel present in vertebrates (arterial, venous, lymphatic), only veins and lymphatic vessels may normally contain valves. This is an essential feature of vessels which present low pressure flow, since it ensures that such flow is unidirectional.
Since blood cells are not typically found in lymphatic vessels, the vessel in question can be assumed to be a vein.
