Table of Contents
- 1 Which phase do you think is the hardest to identify why?
- 2 Which phase of the cell cycle is most important and why?
- 3 Which phase do you think is the hardest to identify?
- 4 What characteristics allow you to identify cells in prophase?
- 5 What features of this cell helps you identify that it was in interphase?
- 6 Did Walther Flemming have a wife?
- 7 How can I tell if my house is single phase or 3 phase?
- 8 How is the phase of a wave determined?
- 9 How is the phase diagram of a substance used?
Which phase do you think is the hardest to identify why?
The stage at which it is most difficult to see DNA is during Interphase.
Which phase of the cell cycle is most important and why?
One reason why the interphase is most important is that it takes up ninety percent of the cell cycle, its parts are G1, DNA synthesis and G2, without interphase, no part of the cell cycle can be possible.
Which phase do you think is the hardest to identify?
Explanation: At prophase stage, no well defined chromosomes are present. DNA is present in the form of thin chromatin fibers that are difficult to visualize under microscope.
What did Walther Flemming do?
Walther Flemming was a pioneer of cytogenetics, a field of science that analyses structures and processes in the cell nucleus under a microscope. He was the first person to conduct a systematic study of chromosomes during division and called this process mitosis.
Why is metaphase important in mitosis?
Metaphase is the third phase of mitosis, the process that separates duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. There is an important checkpoint in the middle of mitosis, called the metaphase checkpoint, during which the cell ensures that it is ready to divide.
What characteristics allow you to identify cells in prophase?
Which characteristics allow you to identify cells in prophase? There is no nuclear envelope and the chromosomes are highly condensed.
What features of this cell helps you identify that it was in interphase?
The most commonly known interphase characteristic is the lack of visibility of the chromosome. Chromosomes are not visible under light microscopy because their nuclear DNA is loosely arranged in chromatin fibers. Fluorescence microscopy is another technique that better visualizes some of the features of interphase.
Did Walther Flemming have a wife?
Walther Flemming (21 April 1843 – 4 August 1905) was a German biologist and a founder of cytogenetics. He was born in Sachsenberg (now part of Schwerin) as the fifth child and only son of the psychiatrist Carl Friedrich Flemming (1799–1880) and his second wife, Auguste Winter.
Who first observe chromosome?
The chromosome was first discovered by Walther Flemming. He called the thread-like structure present in the nucleus as chromatin in 1878. Karl Nageli observed the rod shape chromosomes in the plant cell in 1842 and called them transitory cytoblasts, which were later identified as chromosomes.
Which is an example of a phase difference?
Phase difference: Phase difference is the difference, between two waves is having the same frequency and referenced to the same point in time. It is expressed in degrees or radians. Let’s consider two sinusoidal wave, both have same frequency, Example: R phase and B phase (in our three-phase circuit.)
How can I tell if my house is single phase or 3 phase?
Read your electrical meter to see if it says single or 3-phase. Look near your fuse box to see if your meter is mounted next to it. Sometimes, the face of your meter includes information such as the wattage and the identification number.
How is the phase of a wave determined?
The phase is defined as the position of the waveform at a fraction of time period. Phase is expressed in angle or radian. Phase can also be an expression of relative displacement between two corresponding features (for example, peaks or zero crossings) of two waveforms having the same frequency.
How is the phase diagram of a substance used?
The physical state of a substance and its phase-transition temperatures are represented graphically in a phase diagram. To illustrate the utility of these plots, consider the phase diagram for water shown in [link].