Answer:
An evolutionary lineage is a temporal series of organisms, populations, cells, or genes connected by a continuous line of descent from ancestor to descendant. Lineages are subsets of the evolutionary tree of life. Lineages are often determined by the techniques of molecular systematics.
Answer:
For example, delays in mitosis are often ascribed to 'activation' of the mitotic checkpoint, a descriptor that fails to recognize that the checkpoint by definition is active as the cell starts mitosis. Conversely, the completion of mitosis in the presence of misaligned chromosomes is often automatically interpreted to indicate a defective checkpoint, even though in the absence of critical testing alternative interpretations are equally likely. In this article, we define the critical characteristics of checkpoints and illustrate how confusion generated by the inconsistent use of terminology may impede progress by fostering claims that mean very different things to different researchers. We will illustrate our points with examples from the checkpoint that controls progression through mitosis
Explanation:
Activation of cellular and humoral immunity occurs during<span> clonal selection, the </span>second phase of the immune response. Migration of the lymphoid cells from the bone marrow to central lymphoid organsoccurs during<span> the first </span>phase of the immune response<span> (generation of clonal diversity)</span>
A. Phosphate groups is the correct answer to the question
Answer:
The bacterial culture is always allowed to grow for four to five days to observe endospores because the basic survival strategy exhibited by bacteria isn't mature enough to be observed just after inoculation of the media.
Also, the endospores can be observed very easily when the culture is grown in a uniform and confined intervalm of time.