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प्रश्न
Name the following:
The number of chromosomes present in human gametes.
उत्तर
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संबंधित प्रश्न
Name the following:
The number of chromosomes present in a nerve cell of a human being.
What is the difference between chromatin fibre and chromosome?
What are genes?
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
Answer the following question in your own words.
What is meant by ‘chromosome’?
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Differentiate between
Chromatin and Chromosome.
Name the following:
Microtubules form the bipolar spindle in which stage.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Write the functional activity of the following structure:
Spindle fibers
Write the functional activity of the following structure:
Chromosomes
Very Short Answer Question.
What is allosome?
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
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'.
