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Question
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Options
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
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Solution
The component which is in the nuclei of cells and carries the hereditary characteristics is called a chromosome.
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RELATED QUESTIONS
State the exact location of the Centromere
Name the following:
The number of chromosomes present in a nerve cell of a human being.
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
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 |
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Mention the contribution of the scientist given below in the study of chromosome:
Sutton and Boveri
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Why gametes have a haploid number of chromosomes?
Explain the Term Centrioles
Name the following:
The part of the cell associated with heredity.
Name the following:
The diploid number for cell of man.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
The region of the chromosome where the spindle fibres get attached during cell division ______
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
In higher unisexual animals, one pair of chromosomes is not identical in two sexes. It is called as ______.
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.
Distinguish between the following pair:
Karyotype and Karyokinesis
