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प्रश्न
Name the type of cell division involved in the production of sperms by honey bees.
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उत्तर
The sperms in honey bee are produced by mitosis.
संबंधित प्रश्न
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
Define the term ‘genome’.
Sketch and label the structure of chromosome.
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.
Describe the structure of chromosomes with a suitable diagram.
Give an account of artificial chromosomes in the transfer of genetic material.
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.
Explain codominance in colour coat in cattle with checker board method.
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?
Mention the name of man-made cereal. How it is formed?
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
At secondary constriction I, ______ becomes organized during interphase.
A plant having the genotype AABbCC will produce ______ kinds of gametes.
A gene pair hides the effect of another. The phenomenon is ______.
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 ______.
Which of the following statements indicates parallelism in genes and chromosomes?
- They occur in pairs.
- They segregate during gamete formation.
- They show linkage.
- Independent pairs segregate independently.
There was a mix-up at the hospital after a fire accident in the nursery division. Which of these children belong to the parents?
Which of the following phase follows S and G2 phases of interphase?
How do genes and chromosomes share similarity from the point of view of genetical studies?
