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प्रश्न
Name any two genetic diseases in humans.
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उत्तर
Two genetic diseases in humans are:
- Haemophilia
- Thalassemia
संबंधित प्रश्न
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
A heterozygous tall plant of pea is crossed with a dwarf plant of pea.
Calculate the phenotypic ratio of the progeny.
Explain the Term Heredity.
Give Technical Term:
A virus with DNA as heredity material.
Give Technical Term:
The individuals having dissimilar pairs of genes.
Complete the following sentence with appropriate word:
______is the hereditary unit.
Complete the following sentence with appropriate word:
Upon _______the diploid condition is restored.
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
Explain test cross with suitable example and state its ratios.
Each gamete has only one allele of a gene.
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
Which one of the following genotype will yield only one type of gamete?
Which of the following is the number of alleles for blood group in an individual?
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 |
Mendel was successful in his experiments because:
In which region of chromosomes does crossing over take place?
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.
