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प्रश्न
Chromosomes are mainly made up of ______.
पर्याय
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
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उत्तर
Chromosomes are mainly made up of DNA.
APPEARS IN
संबंधित प्रश्न
The term “chromosomes” literally means ______.
Given below is a schematic diagram of a portion of DNA.
- How many strands are shown in the diagram?
- How many nucleotides have been shown in each strand?
- Name the parts numbered 1, 2, 3, 4 and 5 respectively.
- Name the DNA unit constituted by the parts 1, 2, 3 collectively.
Choose the correct answer:
During mitosis which of the following disintegrate ___________
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?
Choose the correct answer:
The term 'chromosome' was coined by ___________
Telocentric chromosomes are ______.
Enumerate the various changes that occur in the nucleus of the cell during prophase.
Why gametes have a haploid number of chromosomes?
How does colchicine act as mitotic poison? Is there any advantage of it?
Explain the Term Spindle
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
Give the example of X- monosomy you have studied.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Which of the following is TRUE with respect to the genes which inherit together during crossing over?
Small swellings on the surface of the chromosome are called______.
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
Aneuploidy refers to ______.
Which of the following describes the correct type of chromosome?
X- chromosome: A : : Y-chromosome: В
