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प्रश्न
How do genes and chromosomes share similarity from the point of view of genetical studies?
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उत्तर
Similarities between Chromosomes and Genes:
- Both occur in pairs.
- Both segregate at the time of gamete formation such that only one of each pair is transmitted to a gamete.
- Independent pairs segregate independently of each other in both.
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संबंधित प्रश्न
Who had proposed the chromosomal theory of inheritance?
Name the type of cell division involved in the production of sperms by honey bees.
Distinguish between X and Y chromosomes.
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.
Genes G S L H are located on the same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
At secondary constriction I, ______ becomes organized during interphase.
A plant having the genotype AABbCC will produce ______ kinds of gametes.
Extranuclear inheritance is a consequence of presence of genes in ______.
Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.
Which three scientists independently rediscovered Mendel’s work?
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 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
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
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.
Which chromosome in the human genome has the highest number of genes?
