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प्रश्न
उत्तर
Chromosomes are the thread like structures present in the nucleus of the cell. They are covered with a sheath made up of proteins and filled with granular matter called matrix. Inside the matrix, there are two threads called chromonemata.
The chromosome consists of two symmetrical strands called chromatids. Each chromosome consists of a distinct constriction called centromere which gets attached to the spindle network.
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संबंधित प्रश्न
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Answer the following question in your own words.
What is meant by ‘chromosome’?
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
During mitosis which of the following disintegrate ___________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Choose the correct answer:
The term 'chromosome' was coined by ___________
What is the importance of meiosis?
Differentiate between
Chromatin and Chromosome.
Identify the stages of meiosven below and label them.
Draw a duplicate chromosome and label its part.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Name the following:
The diploid number for cell of man.
Multiple Choice Question
Chromosomal aberrations are caused by:
Very Short Answer Question.
What is allosome?
Explain the structure of a chromosome.
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'.
Which of the following type of chromosomes has only one telomere?
