Advertisements
Advertisements
प्रश्न
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
उत्तर
In this statement, reduction means that the number of chromosomes are reduced to half i.e. out of the 23 pairs of chromosomes in humans, only single set of chromosomes are passed on to the sex cells.
APPEARS IN
संबंधित प्रश्न
State the exact location of the Centromere
State the difference between:
Chromosome and chromatid:
Choose the correct answer:
Minimum coiling in chromosome is at ________________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
What is the importance of meiosis in creating variations?
State how does meiosis maintains chromosome number in a species.
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Differentiate between
Gametic meiosis and Zygotic meiosis.
Explain the Term Leptotene
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Multiple Choice Question:
After mitotic cell division, a female human cell will have
Complete the following sentence with appropriate word:
The number of chromosomes in humans is ________.
The centromere is found at the centre of the ______ chromosome.
The loss of one or more chromosomes in ploidy is called ______.
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'.
Small swellings on the surface of the chromosome are called______.
Define the following term:
Chromatid
