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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
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.
Distinguish between X and Y chromosomes.
Define the Homologous chromosomes
Short Answer Question.
Explain the chromosomal theory of inheritance.
A B B C C D E F G H I
From the above figure identify the type of mutation and explain it.
Write the salient features of the Sutton and Boveri concept.
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.
What is the possible genotype in the F2 generation?
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
Chromosomal theory of inheritance was put forth by ______
Which three scientists independently rediscovered Mendel’s work?
What would be the genotype of the parents if the offspring have the phenotypes in 1:1 proportion?
Which of the following phase follows S and G2 phases of interphase?
Which of the following sentences are correct?
1. The offspring exhibit only parental combinations due to incomplete linkage
2. The linked genes exhibit some crossing over in complete linkage
3. The separation of two linked genes are possible in incomplete linkage
4. Crossing over is absent in complete linkage
Which of the following is sex chromosomal disorder?
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
Consider the following information and answer the question that follows:
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Make a single pedigree chart using the above information to show the pattern of inheritance of phenylketonuria (PKU) in the family of Reshma.
