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प्रश्न
How many chromosomes do drones of honey bees possess?
उत्तर
Drones of honey bee possess 16 chromosomes.
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संबंधित प्रश्न
Sketch and label the structure of chromosome.
Describe the structure of chromosomes with a suitable diagram.
Distinguish between X and Y chromosomes.
Describe the structure of sex-chromosomes.
Define the Homologous chromosomes
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 statements that are CORRECT with respect to homologous and non-homologous region of X and Y chromosomes.
i. Non-homologous region of X chromosome is longer and contains more genes than that of non-homologous region of Y chromosome.
ii. X-linked genes are present on nonhomologous region of X-chromosome.
iii. Y-linked genes are present on homologous region of Y-chromosome.
iv. Crossing over occurs only between homologous regions of X and Y chromosomes.
Which of the following does NOT agree with chrotnosomal theory of inheritance?
A couple has two daughters. What is the probability that the third child will also be a female?
