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प्रश्न
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
उत्तर
The German biologist Hermann Henking discovered the X chromosome.
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संबंधित प्रश्न
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.
State the difference between meiocyte and gamete with respect to chromosome number.
Distinguish between X andY chromosomes. (Mention any 'two' points.)
A B B C C D E F G H I
From the above figure identify the type of mutation and explain it.
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
Identify the scientists who proposed chromosomal theory of inheritance.
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
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.
Experimental verification of ‘chromosomal theory of inheritance’ was done by ______.
What do you mean by locus?
