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Question
Complete the following sentence with appropriate word:
______is the hereditary unit.
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Solution
Gene is the hereditary unit.
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Mendel was born in __________
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Mutation alerts the hereditary material. Give reasons.
Explain the Term Dominance.
Explain the Term Recessive character.
Explain the term Alleles.
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Multiple Choice Question
When an individual has both the genes of a contrasting character, it is said to be:
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
Give any two points of difference between homozygous and heterozygous.
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
Identify the genotype of peacock.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
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.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
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 |
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.
