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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
What is gene pool?
State the difference between meiocyte and gamete with respect to chromosome number.
Name the type of cell division involved in the production of sperms by honey bees.
Classify the chromosomes on the basis of position of centromere.
Describe the structure of sex-chromosomes.
Answer the following question.
Compare in any three ways the chromosomal theory of inheritance as proposed by Sutton and Bovery with that of experimental results on pea plant presented by Mendel.
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.
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.
At secondary constriction I, ______ becomes organized during interphase.
In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are ______.
Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.
Mendel’s work was rediscovered by three scientists in the year ______.
How many types of gametes would be produced if the genotype of a parent is AaBB?
What are minisatellites?
Genes located on same locus but having different expressions are:
Which of the following is sex chromosomal disorder?
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
