Can we see chromosomes under compound microscope?
Chromosomes, the spiraling strands of DNA that package the series of chemical bits called genes, are easily visible through a strong enough microscope if the right stain is used. In fact, the development in the 19th century of aniline dyes that make the chromosomes stand out led to their discovery.
What is a Generalised plant cell?
Plant cells vary greatly in shape and function, but in general each has a cell wall surrounding a protoplast, which is differentiated into a nucleus and cytoplasm. Suspended within the watery cytoplasm are the membranes, organelles, and particles in which the biochemical processes of life occur.
How many chromosomes are in each plant cell?
24 chromosomes
If the diploid chromosome number of a flowering plant is 24, then the somatic cells of the plant each contain 24 chromosomes (12 maternal and 12 paternal).
What microscope is used to see chromosomes?
Scanning electron microscopy
Scanning electron microscopy (SEM) can be used to look at chromosomes in their entirety; however, being a surface-sensitive technique, very little information about the internal structure can be observed.
In which phase are the chromosomes best visible under the microscope *?
Answer and Explanation: The chromosomes become visible under a light microscope during prophase in mitosis.
What microscope can see chromosomes?
How can you identify a plant cell under a microscope?
They are green in color under a microscope because they contain chlorophyll, a naturally green pigment. One of the quickest ways to differentiate between a plant and animal cell is to look at the unstained cell under the microscope. If green organelles are present, it is a plant cell.
How many chromosomes are in a leaf cell?
The leaf is diploid, with 16 chromosomes. Microspores have half the number of chromosomes as haploids.
How many chromosomes does a plant cell have after mitosis?
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.
What magnification do you need to see chromosomes?
40x
Focusing the microscope with 40x objective should give you a close enough view of the chromosomes to find each phase. You will also look for spindle fibers which are attached to each chromosome and are used by the cell to separate the chromosomes and move them to each pole.
Which type of microscope would you use to study a nucleus of a living plant cell?
Contemporary light microscopes are able to magnify objects up to about a thousand times. Since most cells are between 1 and 100 μm in diameter, they can be observed by light microscopy, as can some of the larger subcellular organelles, such as nuclei, chloroplasts, and mitochondria.
Which one is the best phase to observe and study chromosome?
Metaphase
So, the correct answer is ‘Metaphase’.
What stage can chromosomes be seen clearly?
Metaphase Normally, individual chromosomes are spread out in the cell nucleus. During metaphase, the nucleus dissolves and the cell’s chromosomes condense and move together, aligning in the center of the dividing cell. At this stage, the chromosomes are distinguishable when viewed through a microscope.
How can you differentiate between a plant cell and an animal cell under the microscope?
Plant cells have a rigid cell wall that surrounds the cell membrane. Animal cells do not have a cell wall. When looking under a microscope, the cell wall is an easy way to distinguish plant cells.
How does microscope help you to determine which is a plant cell and which is the animal cell?
Under a microscope, plant cells from the same source will have a uniform size and shape. Beneath a plant cell’s cell wall is a cell membrane. An animal cell also contains a cell membrane to keep all the organelles and cytoplasm contained, but it lacks a cell wall.
What would be the number of chromosomes of the leaf cells of a plant with 40 chromosomes in its root cells?
Leaf of angiospermic plant has diploid no. of chromosomes. So, as 2n=40, n=20.