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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
Give the significance of mutation.
What is crossing-over? What are the factors affecting it?
Explain the Term Dominance.
Explain the Term Recessive character.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Most genetic diseases in man are recessive in character.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Mutation can be brought about artificially.
Write the functional activity of the following structure:
Genes
Write the functional activity of the following structure:
Autosomes
Choose the Odd One Out
Multiple Choice Question
When an individual has both the genes of a contrasting character, it is said to be:
Explain a dihybrid cross with suitable example and checker board method.
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
Match the items given in Column I with those listed in Column II. Choose the answer with correct combination of alphabets of the two columns.
| Column I | Column II |
| A. Monohybrid cross | 1. T and t |
| B. Test cross | 2. TT |
| C. Alleles | 3. TT × tt |
| D. Homozygous tall | 4. tt |
| 5. Tt × tt |
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
Name any two genetic diseases in humans.
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.
