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Question
Give Reasons for the following
The meiosis is called reductional division
Solution
The meiosis is called reductional cell division since the four daughter cells formed have half the number of chromosomes than the mother cell.
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RELATED QUESTIONS
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
During mitosis which of the following disintegrate ___________
Write a sentence of the following:
Sheath
Write a sentence of the following:
Telomere
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
How does colchicine act as mitotic poison? Is there any advantage of it?
Explain the Term Leptotene
Explain the Term Spindle
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes are the thickest and shortest in telophase.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Name the following:
The pattern of arrangement of genes along a chromosome.
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
