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प्रश्न
Enumerate the cause and the characteristic symptom of PKU.
उत्तर
Cause: Deficiency of the enzyme phenylalanine hydroxylase.
Symptom: Retarded mental growth or light skin pigmentation.
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संबंधित प्रश्न
Mention the Phenotype and Genotype ratios of the offspring in F2 generation.
First geneticist/father of genetics was ______.
The colour based contrasting traits in seven contrasting pairs, studied by Mendel in pea plant were ______.
Independent inheritance of two separate traits, shape and colour of seeds in Mendel’s cross on pea plants resulted in a observable ratio of ______.
Which of the following statement is incorrect?
To study the natural phenomenon of inheritance, Mendel selected pea plants. Which of the following properties were suitable for their studies?
(i) Plants would easily self-pollinate or cross-pollinate in nature.
(ii) Plants were easily grown in garden soil with a considerably shorter generation time.
(iii) Pea plants do not require true-breeding for hybridization experiments.
(iv) Many parts of the plant such as pod, seed, flower, cotyledons showed distinct phenotypes.
What are the characteristic features of a true-breeding line?
