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प्रश्न
How many chromosomes do drones of honey bees possess?
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उत्तर
Drones of honey bee possess 16 chromosomes.
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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
If the number of chromosomes in an endosperm cell is 27, what will be the chromosome number in the definitive nucleus?
- 9
- 18
- 27
- 36
Briefly mention the contribution of T. H. Morgan in genetics.
Who had proposed the chromosomal theory of inheritance?
Distinguish between X andY chromosomes. (Mention any 'two' points.)
Describe the structure of chromosomes with a suitable diagram.
Classify the chromosomes on the basis of position of centromere.
Describe the structure of sex-chromosomes.
Short Answer Question.
Explain the chromosomal theory of inheritance.
Codon – anticodon interactions occur by
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.
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.
At secondary constriction I, ______ becomes organized during interphase.
Extranuclear inheritance occurs in ______.
Experimental verification of ‘chromosomal theory of inheritance’ was done by ______.
What would be the genotype of the parents if the offspring have the phenotypes in 1:1 proportion?
How do genes and chromosomes share similarity from the point of view of genetical studies?
Experimental verification of the chromosomal theory of inheritance was done by ______.
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
