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प्रश्न
Name any two genetic diseases in humans.
उत्तर
Two genetic diseases in humans are:
- Haemophilia
- Thalassemia
संबंधित प्रश्न
What is crossing-over? What are the factors affecting it?
Differentiate Between Homozygous shows Heterozygous.
Explain the Term Crossing-over.
Name the following:
The study of heredity and variation.
Complete the following sentence with appropriate word:
______is the hereditary unit.
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.
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
The word chromosome was coined by
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
Identify the possible genotypic ratio in F2 generation if a plant producing red flowers (RR) is crossed with another plant of the same species that produces white flower (rr).
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
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 ______
Which of the following is the number of alleles for blood group in an individual?
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
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)
Which one of the following character is recessive in case of a pea plant?
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
