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प्रश्न
Expand the following biological abbreviations :
DNA
उत्तर
Deoxyribose Nucleic Acid
APPEARS IN
संबंधित प्रश्न
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Choose the correct answer:
Centromere is related to _______________
Write a sentence of the following:
Sheath
What are chromosomes?
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Explain the Term Centrioles
Explain the Term Spindle
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Name the following:
The pattern of arrangement of genes along a chromosome.
Explain the structure of chromosomes with 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'.
Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
