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प्रश्न
State the Location: Polytene chromosome
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उत्तर
Polytene chromosome: In salivary glands of fly Larve.
APPEARS IN
संबंधित प्रश्न
State the exact location of the Centromere
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
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 |
Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________
Draw a duplicate chromosome and label its part.
Explain the Term Zygotene
Explain the Term Spindle
Give Technical Terms
The stage when sister chromosomes separate from their paired condition.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
State the Location: Chromosomes
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Define euploidy.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
Explain the structure of a chromosome.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
The chromosomes are duplicated in ______.
