Answer:
The two main types of DNA organization present in chromosomes are the extended DNI and the condensed DNI
Explanation:
In eukaryotes, the complete chromosome is composed of only one lineal and extremely long DNA molecule. DNA is intimately associated with two types of proteins: <u><em>histones</em></u>, which are structural proteins, and <em>non-histone</em> proteins that mediate different functions of DNA.
DNA associated with histones is called <u><em>chromatin</em></u>. Histones are responsible for packaging DNA molecule, and the fundamental unit of packaging is known as a <em><u>nucleosome</u></em>. As chromatin must be condensed, nucleosomes generate regular structures between themselves forming a <em><u>chromatinic fiber</u></em>, in which DNA is very condensed. A superior level of condensation is the structural <em><u>ringlet-shaped domain</u></em>. At this level, a chromatinic fiber is folded and a protein is responsible for keeping joined the two regions of DNA that form the ringlet. The next condensation level is the rolling of the ringlet-shaped domain composing the <u><em>chromosome</em></u>. The typical chromosome in the metaphase is formed by <u><em>two chromatids</em></u> joined by a centromere. Each chromatid is composed of a sequence of chromatin ringlets domains. In the interphase, <em>before cellular division</em>, chromatin is in a diffuse, lax, uncondensed state, known as extended DNA. When <em>cellular division</em> is about to happen, chromatin begins to condensate. At the beginning of the <em>prophase</em>, DNA is condensed in a well-defined chromosome formed by two sisters chromatids.
Answer:
I would say the correct answer is <em><u>A. Redwood trees</u></em>
Explanation:
because K-selected species are characterized by long gestation periods lasting several months, slow maturation, and long life spans.
Explanation:
One person that worked with Darwin was Alfred Wallace. Darwin believed that species were able to change over time, and that they shared the same genetics due to their common ancestors. Alfred believed the theory of the of natural selection, and that when a humans die their spirit is gone after death. Things that relate to Darwin's theory is, Limeleus, it's a classification system from kingdom to species. There's also three theories of geological changes which were catastrophism (natural disaster) idea that catastrphism happen in the past and will continue. Gradualism ( everything must change), and last is Uniformitariansm ( idea that what happened in the past, will happen again in the future). It's prevailing theory of geological change.
