* The first statement is true.
Chromatid is a DNA molecule (the nucleofilament) associated with histone proteins and non-histone proteins. A chromatide has the shape of a rod that can have different degrees of condensation depending on the times of the cell cycle or the transcription activity of the genes.
This structural unit appears as a chromosome only during cellular divisions (mitosis or meiosis). The rest of the time, all chromatids form chromatin.
Each chromosome of a cell may consist of one or two chromatids depending on its state: just after a mitosis, or after the second meiotic division, each chromosome consists of only one chromatid, the rest of the time, after DNA replication, each chromosome consists of two completely identical chromatids, connected by the centromere, thus giving the two rods the shape of an X.
* The second statement is True
In its common definition the chromosome consists of one (or more) molecule of DNA, histones and non-histone proteins, disregarding its degree of condensation.
In its most scientifically rigorous definition, a chromosome is a fully condensed structure of chromatin. In this definition, the chromosome is only present during mitosis, more precisely during the metaphase where it takes the name metaphase chromosome (it is during the metaphase that it reaches its maximum degree of condensation).
Answer:
Baking soda is the strongest acid I think. I learned it in bio.
Explanation:
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Answer:
1. Hormones can be activated by stressful conditions.
2. Because this belief is associated with the innocence (lack of cognitive experience).
3. Babies start to associate movements and they acquire the ability to repeat these actions.
4. Because they have to develop the ability to deal with complex problems.
5. Due to the lack of suitable stimulation.
6. Learning disability is a disorder that affects the capacity to learn.
7. It is likely that she needs a more suitable stimulation to learn.
8. These terms represent an ideal environment that provides support to develop skills and abilities.
9. "functional death" refers to the death of the central nervous system, while "brain death" refers to the loss of cerebral functions.
10. Religious beliefs.