Advertisements
Advertisements
प्रश्न
Distinguish between X andY chromosomes. (Mention any 'two' points.)
Advertisements
उत्तर
| No | X Chromosome | Y chromosome |
| 1 | These chromosomes are metacentric, hence appear X shaped. | These chromosomes are acrocentric, hence appear Y shaped |
| 2 | They are longer than ‘Y’ chromosomes | They are shorter than ‘X’ chromosomes |
| 3 | It contains large amount of euchromatin and small amount of heterochromatin. | It contains large amount of heterochromatin and small amount of euchromatin. |
| 4 | Found in both male and females. | Found only in males. |
| 5 | Non-homologous part shows more genes than Y chromosome. |
Non-homologous part contains few genes as compared to X chromosome. |
| 6 | X - linked genes are present on X chromosome. | Y- linked genes (Holandric genes) are present on Y chromosome. |
| 7 | Genes present on X chromosome show criss-cross inheritance. |
Genes present on Y chromosome show straight inheritance |
APPEARS IN
संबंधित प्रश्न
Define the term ‘genome’.
Distinguish between X and Y chromosomes.
Write the salient features of the Sutton and Boveri concept.
Extranuclear inheritance occurs in ______.
Which three scientists independently rediscovered Mendel’s work?
Chromosomal theory of inheritance was given by ______.
How many types of gametes would be produced if the genotype of a parent is AaBB?
The Chromosomal Theory of Inheritance is also known by which alternative name?
In what year did Walter Sutton publish the formal paper "The Chromosomes in Heredity" that linked Mendel's laws to chromosome behaviour?
During which cellular process do homologous chromosomes separate and distribute one chromosome from each pair to resulting gametes?
