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प्रश्न
A family has five daughters and expecting sixth child. The chance of its beings a son is
विकल्प
zero
25%
50%
100%
उत्तर
50%
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संबंधित प्रश्न
find odd one from following: Typhoid, Haemophilia, Albinism, Colour blindness.
the Biological/technical term for The repeating components of each DNA strand lengthwise
Match the terms in column I with their explanations in column II.
| Column I (Term) | Column I (Explanation) | ||
| a | genetics | 1 | Chromosomes similar in size and shape |
| b | Autosomes | 2 | The alternative forms of a gene |
| c | Recessive gene | 3 | Study of laws of inheritance of characters |
| d | Allele | 4 | A gene that can express only when in a similar pair |
| e | Homologous chromosomes | 5 | Chromosomes other than the pair of sex chromosomes |
Give Reason:
Hemophilia shows criss-cross inheritance.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Colour blindness is a Y-linked character.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A colourblind male cannot distinguish any colour.
Explain the inheritance of sex-linked characters in human being.
Inheritance of hypertrichosis occurs directly from ____________.
If a colour blind man marries a normal visioned woman, what is the percentage of offsprings showing colour blindness phenotypically?
Four friends P, Q, R and S were discussing the examples of genetic disorders. The examples they quoted were as follows:
P. Colour blindness and Malaria
Q. Albinism and Cholera
R. Haemophilia and Colour blindness
S. Haemophilia and Albinism
Who gave the correct examples?
