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प्रश्न
Distinguish between X and Y chromosomes.
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उत्तर
| X chromosome | Y chromosome |
| It is found in both male and female | It is found in males only. |
| It is responsible for X linked characters. | It is responsible for Y linked character. |
| Chromosome appear X shaped as they are metacentric | Chromosome appear Y shaped as they are acrocentric |
| Non-homologous parts show less genes. | Non-homologous parts show more genes. |
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संबंधित प्रश्न
If centromere is situated in the middle of the chromosome, it is called ________.
(a) Metacentric
(b) Acrocentric
(c) Submetacentric
(d) Telocentric
State the difference between meiocyte and gamete with respect to chromosome number.
Short Answer Question.
Explain the chromosomal theory of inheritance.
Identify the scientists who proposed chromosomal theory of inheritance.
Match the column I (Type of chromosome) with column II (name of chromosome).
| Type of chromosome | Name of chromosome | ||
| i. |  |
P. | Acrocentric |
| ii. |  |
Q. | Telocentric |
| iii. |  |
R. | Metacentric |
| iv. |  |
S. | Sub-metacentric |
From the following identify the INCORRECT statement/s with respect to the chromosomes.
i. Chromosomes are capable of self replication and play vital role in heredity, mutation, variation, and evolutionary development of eukaryotic species.
ii. Chromosomes are visible during cell division.
iii. Chemically eukaryotic chromosomes are made of mRNA, histone and non-histone proteins.
iv. The number of chromosomes varies within the population of a particular species.
Extranuclear inheritance occurs in ______.
Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.
Which three scientists independently rediscovered Mendel’s work?
Experimental verification of ‘chromosomal theory of inheritance’ was done by ______.
