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प्रश्न
Differentiate between inherited and acquired characters. Give one example for each type.
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उत्तर
| Inherited Characters | Acquired Characters |
| Inherited characters are those characters that a person gets from his/her ancestors. | Acquired characters are the characters that a person gets during his/her lifetime. |
| These characters develop due to changes in DNA of germ cells so, these are passed on from one generation to another. | These characters do not develop due to changes in DNA of germ cells hence, they are not inherited to the next generation. |
| Examples - attached or free earlobes, colour of the eye, skin colour, etc. | Examples - decrease in weight due to starvation, muscular body, etc. |
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संबंधित प्रश्न
Differentiate between the following:
Dominance and Recessive
Differentiate between the following:
Homozygous and Heterozygous
When a cross is made between tall plant with yellow seeds (TtYy) and tall plant with green seed (Ttyy), what proportions of phenotype in the offspring could be expected to be:
- Tall and green.
- Dwarf and green.
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.
Explain Mendel’s monohybrid progeny with the help of any one cross.
What is a monohybrid cross? How did Mendel perform this cross?
A pure tall plant (TT) is crossed with the pure dwarf plant (tt), what would be the F1 and F2 generations? Explain.
Genotypic ratio of a monohybrid cross is ______.
When a tall plant with rounded seeds (TTRR) is grossed with a Dwarf plant with wrinkled seeds (ttrr) the F1 generation consists of tall plants with rounded seeds. How many types of gametes the F1 plant would produce?
In a plant tallness is dominant over dwarfness and red flower is dominant over white. Starting with the parents work out a dihybrid cross. What is standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interacting with each other?
Assertion (A): In humans, if gene (B) is responsible for black eyes and gene (b) responsible for brown eyes, then the colour of eyes of the progeny having gene combination Bb, bb or BB will be black only.
Reason (R): The black colour of the eyes is a dominant trait.
A monohybrid cross is a genetic cross in which how many pair(s) of contrasting characters is/are studied?
Which pair of contrasting characters is studied in the pea plant monohybrid cross?
What is the genotype of the pure dwarf plant selected in the experimental sequence?
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?
