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प्रश्न
The Chromatin material is formed forms of ______.
विकल्प
DNA only
DNA and Histones
Histones only
Nucleotides
उत्तर
The Chromatin material is formed forms of DNA and Histones.
Explanation:
The nucleosome is a unit composed of DNA that surrounds an 8-Histone core. These nucleosomes wrap and create chromatin fibres.
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संबंधित प्रश्न
Given below is a schematic diagram of a portion of DNA.
- How many strands are shown in the diagram?
- How many nucleotides have been shown in each strand?
- Name the parts numbered 1, 2, 3, 4 and 5 respectively.
- Name the DNA unit constituted by the parts 1, 2, 3 collectively.
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
Mention whether the following statement is (T) Or (F). Give reason in support of your answer.
The unfertilized human egg has half the number of chromosomes of the body cells.
Chromosomes are mainly made up of ______.
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Write a sentence of the following:
Sheath
Name the following:
Microtubules form the bipolar spindle in which stage.
Name the following:
The part of the cell associated with heredity.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Multiple Choice Question:
After mitotic cell division, a female human cell will have
State the Location: Chromosomes
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. |
Define euploidy.
Define the following term:
Chromatid
In the human male, a sperm contains autosomes and ______.
