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प्रश्न
The chromosomes are duplicated in ______.
पर्याय
M phase
G1 phase
S phase
G2 phase
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उत्तर
The chromosomes are duplicated in S phase.
Explanation:
Chromosomes are duplicated during the cell cycle's Synthesis (S) phase, which includes DNA replication.
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.
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Choose the correct answer:
Minimum coiling in chromosome is at ________________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Write a sentence of the following:
Sheath
Write a sentence of the following:
Centromere
Write a sentence of the following:
Telomere
Choose the correct answer:
The term 'chromosome' was coined by ___________
Choose the correct answer:
A 'V' shaped chromosomes has to _____________
Give Reasons for the following
Chromosomes are the carriers of heredity.
Name the following:
Microtubules form the bipolar spindle in which stage.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
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 are the thickest and shortest in telophase.
Name the following:
The number of chromosomes present in human gametes.
Identify the odd one:-
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
Distinguish between the following pair:
Karyotype and Karyokinesis
