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प्रश्न
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उत्तर
Mendel's work did not receive much notice till 1900. Then three scientists: Hugo de Vries, Carl Correns and Erich von Tschermak working independently rediscovered his work and brought Mendel's experiment to limelight.
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संबंधित प्रश्न
The phenotypic ratio of incomplete dominance is ______.
Give the significance of mutation.
State Mendel’s Law of Dominance.
Explain the Term Recessive character.
Name the following:
The genetic composition of an organism.
Give Technical Term:
Cell organelle directly involved in genetics.
Give Technical Term:
Transmits characteristics from parents to offsprings.
Give Technical Term:
A single egg was fertilized by a single sperm. But twins derived from that egg were born. What is the name of such type of twins?
Choose the Odd One Out
Multiple Choice Question
Genetics is a branch of biology dealing with:
Multiple Choice Question
A cross was made between tall and dwarf plants. In F1 generation all plants were tall, when the F1 plants were selfed, the tall and dwarf plants appeared in a 3 : 1 ratio in the F2 generation. This phenomenon is known as:
Explain a dihybrid cross with suitable example and checker board method.
A recessive factor is altered by the presence of a dominant factor.
Each gamete has only one allele of a gene.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
A pea plant with the genotype YyRr is crossed with another pea plant with the genotype yyrr. The expected phenotypic ratio of individuals formed will be ______
A typical dihybrid cross is carried outbetween true breeding plant with yellowround seeds and a true breeding plant withgreen wrinkled seeds. With appropriatesymbol write the genotypes of —
- Homozygous dominant and recessive parents.
- Gametes produced by both the parents.
- Gametes produced by the F, hybrid. (3)
What is dihybrid cross?
Rewrite the correct form of the statement by changing the first or last word only:
The full complement of DNA of an organism is termed as genetics.
