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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.
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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
Sketch and label the structure of chromosome.
Distinguish between X andY chromosomes. (Mention any 'two' points.)
Define the Homologous chromosomes
An allohexaploidy contains
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?
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 ______.
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.
A plant having the genotype AABbCC will produce ______ kinds of gametes.
Extranuclear inheritance occurs in ______.
Experimental verification of ‘chromosomal theory of inheritance’ was done by ______.
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.
What would be the genotype of the parents if the offspring have the phenotypes in 1:1 proportion?
Who postulated the 'Chromosomal theory of inheritance'?
Which chromosome in the human genome has the highest number of genes?
