Advertisements
Advertisements
प्रश्न
State a difference between a gene and an allele.
उत्तर
Gene: A gene is a unit of inheritance that is transferred from the parent to the offspring. It controls the expression of a character. A gene is a linear piece of DNA present in the nucleus.
Alleles: Alleles are alternative forms of a single gene that lie on the same locus in homologous chromosomes.
APPEARS IN
संबंधित प्रश्न
What are 'true breeding lines' that are used to study inheritance pattern of traits in plants?
What is the inheritance pattern observed in the size of starch grains and seed shape of Pisum sativum? Workout the monohybrid cross showing the above traits. How does this pattern of inheritance deviate from that of Mendelian law of dominance?
Explain the genetic basis of blood grouping in human population.
In Snapdragon, a cross between true-breeding red flowered (RR) plants and truebreeding white flowered (rr) plants showed a progeny of plants with all pink flowers.
The appearance of pink flowers is not known as blending. Why?
How can test cross decipher the heterozygosity of a plant?
If the mother is a carrier of colour blindness and the father is normal, the possible genotype and
the phenotype of the offspring of the next generation, with the help of a punnet square
Choose the correct options of the following question:
In the given pedigree chart, the trait shown is:
Explain the phenomena of dominance, multiple allelism and co-dominance taking human ABO blood group as an example.
In Antirrhinum, RR is phenotypically red flowers, rr is white and Rr is pink. Select the correct phenotypic ratio in F1 generation when a cross is performed between RR X Rr: ______
Which of the following illustrates pleiotropy?