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प्रश्न
Differentiate between the following:
Homozygous and Heterozygous
Differentiate between homozygous and heterozygous.
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उत्तर
| Sr. No. | Homozygous | Heterozygous |
| 1. | It is pure for a trait and breeds true, producing homozygous individuals with similar characteristics. | A heterozygous individual is usually pure and generates offspring with diverse genotypes on selfing, such as TT, Tt, and tt on selfing of Tt individuals. |
| 2. | Both alleles of a trait, such as TT and tt, are similar. | It carries different alleles, such as Tt. |
| 3. | Homozygous individuals can carry either dominant or recessive alleles, but not both. | A heterozygous individual carries both dominant and recessive alleles. |
| 4. | It produces one type of gamete. | It creates two types of gametes. |
| 5. | It does not display excessive vigour. | Individuals can exhibit hybrid vigour, often known as heterosis. |
संबंधित प्रश्न
Differentiate between the following:
Dominance and Recessive
Differentiate between the following:
Monohybrid and Dihybrid
A child has blood group O. If the father has blood group A and the mother has blood group B, work out the genotypes of the parents and the possible genotypes of the other offspring.
How would you find out whether a given tall garden pea plant is homozygous or heterzygous? Substantiate your answer with the help fo Punnett squares.
Given below are the F2 – phenotypic ratios of two independently carried monohybrid crosses :
(i) 1 : 2 : 1
(ii) 3 : 1
Mention what does each ratio suggest.
Differentiate Between Monohybrid and Dihybrid cross.
Name the conditions when both the alleles are identical?
A pure tall plant (TT) is crossed with the pure dwarf plant (tt), what would be the F1 and F2 generations? Explain.
Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F1 generation are then selfed to produce F2 generation of pea plants.
What do the plants of the F1 generation look like?
Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F1 generation are then selfed to produce F2 generation of pea plants.
What is the ratio of tall plants to dwarf plants in the F2 generation?
Give reasons why acquired characters are not inherited.
Genotypic ratio of a monohybrid cross is ______.
Cross between hybrid and recessive parent:
Which pair of contrasting characters is studied in the pea plant monohybrid cross?
Which pure-breeding pea plants did Mendel select for plant height?
What is the genotype of the pure tall plant selected in the experimental sequence?
What is the genotype of the pure dwarf plant selected in the experimental sequence?
Which self-pollination is performed to obtain the F2 generation?
Which gametes are produced by each \[Tt\] plant during selfing in F1?
What are the four genotypic outcomes of the cross \[Tt \times Tt\]?
What is the genotypic ratio in F2?
Which conclusion follows from the tall and dwarf pea plant monohybrid cross?
