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प्रश्न
Chromosomes are mainly made up of ______.
विकल्प
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
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उत्तर
Chromosomes are mainly made up of DNA.
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संबंधित प्रश्न
What is the difference between chromatin fibre and chromosome?
Choose the correct answer:
During mitosis which of the following disintegrate ___________
Write a sentence of the following:
Telomere
Choose the correct answer:
A 'V' shaped chromosomes has to _____________
What are chromosomes?
Give Reasons for the following
The meiosis is called reductional division
Draw a duplicate chromosome and label its part.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Multiple Choice Question
Chromosomal aberrations are caused by:
Match the following.
| 1. Autosomes | - | Trisomy 21 |
| 2. Diploid condition | - | 9 : 3 : 3 : 1 |
| 3. Allosome | - | 22 pair of chromosome |
| 4. Down’s syndrome | - | 2n |
| 5. Dihybrid ratio | - | 23rd pair of chromosome |
Explain the structure of a chromosome.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
After a mitotic cell division, a human female cell will 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.
Distinguish between the following pair:
Karyotype and Karyokinesis
