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प्रश्न
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
पर्याय
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
उत्तर
The component which is in the nuclei of cells and carries the hereditary characteristics is called a chromosome.
APPEARS IN
संबंधित प्रश्न
What is the number of chromosomes in the gametes of human beings?
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:
In an interphase cell chromosome are as _____________
Choose the correct answer:
Minimum coiling in chromosome is at ______________
Write a sentence of the following:
Sheath
Choose the correct answer:
Chromosomes largely consist of _______________
The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in ______.
Synthesis phase in the cell cycle is called so for the synthesis of more of
Enumerate the various changes that occur in the nucleus of the cell during prophase.
Differentiate between
Cytokinesis in plant and animal cell
Name the following:
Microtubules form the bipolar spindle in which stage.
Duplicated chromosomes are joined at a point termed ______.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
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. |
The region of the chromosome where the spindle fibres get attached during cell division ______
The centromere is found at the centre of the ______ chromosome.
Match the following.
| 1. Autosomes | - | Trisomy 21 |
| 2. Diploid condition | - | 9 : 3 : 3 : 1 |
| 3. Allosome | - | 22 pair of chromosome |
| 4. Down’s syndrome | - | 2n |
| 5. Dihybrid ratio | - | 23rd pair of chromosome |
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
In the human male, a sperm contains autosomes and ______.
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
