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प्रश्न
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उत्तर
In man, there is a pair of sex chromosomes. In males, it is X and Y while in female, the sex chromosomes are X and X which are identical to each other.
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संबंधित प्रश्न
What is the number of chromosomes in the gametes of human beings?
What is the difference between chromatin fibre and chromosome?
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
What is the importance of meiosis?
Give Reasons for the following
The meiosis is called reductional division
Explain the Term Zygotene
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
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 _______.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Duplicated chromosomes are joined at a point termed ______.
Write the functional activity of the following structure:
Chromosome
Name the following:
Pairs of chromosomes, present in human egg cells.
What is allosome?
The centromere is found at the centre of the ______ chromosome.
The thin thread-like structures found in the nucleus of each cell are called ______.
