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प्रश्न
Which of the following is NOT an example of connecting link?
- Archaeopteryx
- fchthyostegia
- Seymouria
- Biston betularia
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उत्तर
(d) Biston betularia
It is a temporary species which helps in studying industrial melanism.
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संबंधित प्रश्न
What is criss-cross inheritance?
A cross between a normal couple resulted in a son who was haemophilic and a normal daughter. In course of time, when the daughter was married to a normal man, to their surprise, the grandson was also haemophilic.
- Represent this cross in the form of a pedigree chart. Give the genotypes of the daughter and her husband.
- Write the conclusion you draw of the inheritance pattern of this disease.
Answer the following question.
Name the type of cross that would help to find the genotype of a pea plant bearing violet flowers.
Analyze the following statements and select the correct option.
- Due to incomplete linkage, the parental traits are inherited in offsprings.
- Due to incomplete linkage, new traits occur in offsprings.
- X chromosome of Drosophila males show complete linkage.
- In Zea mays - colour and shape of grain show complete linkage
Blue eye colour is recessive to brown eye colour. A brown-eyed man whose mother was blue-eyed marries a blue-eyed woman. The children shall be ______.
Which of the following is a test cross?
Genes located very close to one another on same chromosome tend to be transmitted together and are called as ______.
What is true about the crossing over between linked genes?
From a cross AABb x aaBb, the genotypes AaBB : AaBb : Aabb will be obtained in the ratio ______.
Which of the following statement is correct?
