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प्रश्न
State the difference between:
Chromosome and chromatid:
उत्तर
A chromosome is an organized structure of DNA and protein found in cells. It is a single
piece of coiled DNA containing many genes, regulatory elements and other nucleotide
sequences whereas a chromatid is one of the two copies of DNA making up a duplicated
chromosome, which are joined at their centromeres, for the process of cell division (mitosis
or meiosis).
APPEARS IN
संबंधित प्रश्न
State the exact location of the Centromere
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
Correct the following statement if there is any mistake:
Genes are specific sequences of bases on a chromosome .
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Chromosomes largely consist of _______________
What are chromosomes?
What is the importance of meiosis?
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
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 disappearance of spindle and uncoiling of chromosomes takes place in
Give Technical Term:
Transmission of characters through generations.
In humans, the sex chromosome complement is
Describe the structure of sex chromosomes with the help of labelled diagram.
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'.
