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Question
Duplicated chromosomes are joined at a point termed ______.
Options
Centrosome
Centromere
Centriole
Chromatid
Solution
Duplicated chromosomes are joined at a point termed centromere.
Explanation:
Until they are split during cell division, the centromere is the point of attachment between the two sister chromatids of a chromosome.
RELATED QUESTIONS
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
Choose the correct answer:
The term 'chromosome' was coined by ___________
Choose the correct answer:
Chromosomes are thin and thread like at __________
Why gametes have a haploid number of chromosomes?
How does colchicine act as mitotic poison? Is there any advantage of it?
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Multiple Choice Question:
The period between two successive mitotic divisions is
State the Location: Polytene chromosome
Name the following:
Cells having a single set of 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. |
With the help of a neat labelled diagram, describe the structure of chromosome.
The centromere is found at the centre of the ______ chromosome.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
The sex of the newborn child is a matter of chance and neither of the parents may be considered responsible for it. What would be the possible fusion of gametes to determine the sex of the child?
The chromosomes are duplicated in ______.
