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प्रश्न
Explain the following term :
Heterozygous
उत्तर
Heterozygous:
The condition in which a pair of homologous chromosomes carries
dissimilar alleles for a particular character.
For example -
(i) A daughter (XXo) from a normal homozygous mother for colour vision (XX) anda colour blind father has one normal and one defective allele (XoY).
(ii) Certain tongue rollers are heterozygous with Rr genotype.
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संबंधित प्रश्न
Give appropriate biological/technical terms for the following:
The type of immunity that exists in our body due to our genetic makeup.
In a homozygous plant round seeds (R) are dominant over wrinkled seeds (r) : Draw a Punnett square to show the gametes and offspring when both the plants have heterozygous round seeds (Rr).
Explain the law of independent assortment with a suitable example.
Given below is a schematic diagram showing Mendel’s Experiment on sweet pea plants having axial flowers with round seeds (AARR) and Terminal flowers with wrinkled seeds (aarr). Study the same and answer the questions that follow :
(i) Give the phenotype of F1 progeny.
(ii) Give the phenotypes of F2 progeny produced upon by the self-pollination of F1 progeny.
(iii) Give the phenotypic ratio of F2 progeny.
(iv) Name and explain the law induced by Mendel on the basis of the above observation.
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The colour based contrasting traits in seven contrasting pairs, studied by Mendel in pea plant were ______.
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