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During metaphase, chromosomes are aligned at the cell's equatorial plane, and each chromosome is composed of two sister chromatids, which are the result of DNA replication that occurred during the S phase of interphase. This duplication is evident as each chromosome appears as a distinct X-shaped structure. The sister chromatids are still attached at a region called the centromere, making it clear that chromosome duplication has taken place prior to metaphase. Thus, while the physical separation of chromatids occurs later during anaphase, the evidence of duplication is clearly observable during metaphase.
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Structure of nucleosome and extent of chromatin condensation in metaphase chromosome?
A nucleosome is the basic unit of chromatin, composed of DNA wrapped around a core of histone proteins. In metaphase chromosomes, chromatin is highly condensed and tightly packed. The nucleosomes are further condensed into tightly coiled structures called chromatin fibers, ultimately forming the highly structured chromosomes observed during cell division.
What evidence is there that asteroids made craters?
It has been observed.
The situation in which the evidence arises is called the?
The situation in which the evidence arises is called the context. It refers to the circumstances, environment, or background in which the evidence is found or observed. Understanding the context is crucial for interpreting the evidence accurately.
Is a scientific theory or law an attempt to explain a pattern observed in the natural world?
The theory is based on replicable evidence. This evidence turns a theory into a fact.
X-linked traits are rare in females?
X-linked traits are rare in females because they have two X chromosomes, which allows for compensation of any defective genes on one X chromosome with the normal genes on the other X chromosome. In contrast, males only have one X chromosome, so any defective gene on that chromosome will be expressed. This is why X-linked traits are more commonly observed in males.
Structure of nucleosome and extent of chromatin condensation in metaphase chromosome?
A nucleosome is the basic unit of chromatin, composed of DNA wrapped around a core of histone proteins. In metaphase chromosomes, chromatin is highly condensed and tightly packed. The nucleosomes are further condensed into tightly coiled structures called chromatin fibers, ultimately forming the highly structured chromosomes observed during cell division.
When can you see chromosomes under light microscope?
only at the time of cell division in the metaphase and in the anaphase the chromosome are visible. because at this time the chromatin get aggregate and form the thick chromosome which are visible under microscope.
What term describes evidence of disease that can be observed only by the patient?
Conditions in the patient that can be observed
Is scientific evidence supported with theories?
You have it backwards. Theories are supported by evidence. Evidence is not supported by theories, evidence is simply observed.
What are the key characteristics and distinguishing features of the meiosis stages when observed under a microscope?
The key characteristics and distinguishing features of the meiosis stages when observed under a microscope include the reduction in chromosome number, the occurrence of crossing over during prophase I, the alignment of homologous chromosomes during metaphase I, the separation of homologous chromosomes during anaphase I, and the separation of sister chromatids during anaphase II. These stages are essential for the production of genetically diverse gametes.
What evidence is there that asteroids made craters?
It has been observed.
What evidence of wildlife activity, such as cougar footprints in the snow, have you observed during your outdoor adventures?
During my outdoor adventures, I have observed evidence of wildlife activity such as cougar footprints in the snow.
What evidence of wildlife activity, such as cougar prints in the snow, have you observed during your outdoor adventures?
During my outdoor adventures, I have observed evidence of wildlife activity such as cougar prints in the snow.
Which term describes evidence of disease that can be observed only by the patient?
symptom
Is a sign such as fever is evidence of disease that can be observed by the patient and by others?
yes
How do you use inconstant in a sentence?
[Inconsistent] This information is inconsistent with the evidence observed.
Eruptions observed on Mercury?
they have never been observed but there is evidence that there once was volcanoes mercuries core has cooled bringing volcanic activity to an end.
