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प्रश्न
The term “chromosomes” literally means ______.
विकल्प
Inherited bodies
Twisted threads
Coloured bodies
Shining threads
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उत्तर
The term “chromosomes” literally means coloured bodies.
Explanation:
The term "chromosomes" literally translates to "coloured bodies." This term is derived from the Greek words "chroma," meaning colour and "soma," which means body. It reflects the ability of chromosomes to absorb specific dyes and become visible under a microscope, allowing scientists to examine and distinguish between them.
संबंधित प्रश्न
Name the sex chromosomes in human males and females
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong
Centrosome.Cell wall, Cell membrane, Large vacuoles
What are genes?
State the difference between:
Chromosome and chromatid:
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
Chromosomes number is halved in _____________
Mention the contribution of the scientist given below in the study of chromosome:
Strasburger
Mention the contribution of the scientist given below in the study of chromosome:
Sutton and Boveri
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
Identify the stages of meiosven below and label them.
Write the functional activity of the following structure:
Spindle fibers
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| Genetics | Chromosomes are similar in size and shape. |
| Autosomes | The alternative forms of a gene. |
| Recessive gene | Study of laws of inheritance of characters |
| Allele | A gene that can express only when in a similar pair. |
| Homologous chromosomes | Chromosomes are other than the pair of sex chromosomes. |
With the help of a neat labelled diagram, describe the structure of chromosome.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
After a mitotic cell division, a human female cell will have ______.
