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प्रश्न
What is the importance of meiosis in creating variations?
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उत्तर
During meiosis, the exchange of chromosomal material takes place between the non-sister chromatids forming new combinations. These new combinations give rise to variations which result in the evolution of species and even in the origin of new species.
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संबंधित प्रश्न
Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
Mention the contribution of the scientist given below in the study of chromosome:
Strasburger
Choose the correct answer:
Telocentric chromosomes are _________________
How does colchicine act as mitotic poison? Is there any advantage of it?
What is the importance of meiosis?
Explain the Term Centrioles
Explain the Term Chromosomes
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
Give Technical Term:
Transmission of characters through generations.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
The number of chromosomes found in human beings is ______.
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'.
Define Aneuploidy.
After a mitotic cell division, a human female cell will have ______.
Distinguish between the following pair:
Karyotype and Karyokinesis
