Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- In guinea pigs, black fur 'B' is dominant over white fur 'b' and rough fur (R) is dominant over smooth fur (r). A cross between...
- Match the following columns. Column I – Column II A. Monohybrid cross – 1. T and t B. Test cross – 2. TT C. Alleles – 3. Tt × Tt...
- Match the following columns. Column I – Column II A. Removal of anther – 1. Human blood group B. Laws of inheritance – 2....
- Match Column I with Column II and select the correct answer using code given below Column I: (A) -thalassemia; (B) Klinefelter's...
- You cross a p+/v+, p+/v+ male Drosophila to a p-/v-, p-/v- and obtain the F_1 hybrid. Now you cross the F_1 male with double...
- Mendel work later formulated into laws of 1. linkage 2. segregation 3. incomplete dominance 4. independent assortment Choose the...
- Mendel cross tall and dwarf plant. In F_2-generation, the observed ratio was 3:1 (tall: short). From this result, he deduced 1....
- TtRr represents (heterozygous tall, heterozygous pink). If this plant is self-crossed then (T-dominant, t-recession, R-dominant,...
- ABO blood grouping in human beings is an example for 1. Dominance 2. Incomplete dominance 3. Codominance 4. Multiple alleles
- Choose the correct option for the chromosomal disorders
- 1. Haemophilia 2. Cystic fibrosis 3. Sickle-cell anaemia 4. Color blindness 5. Cancer 6. Plague 7. Phenylketonuria 8. Thalassemia...
- The possibility of a female becoming a haemophilia is __A__ rare because mother of such a female has to be at least __B__ and the...
- __A__ is sex-linked recessive disease, which shows its transmission from __B__ female to __C__ progeny. Choose the correct option...
- One child is haemophilic (sex-linked trait), while its fraternal twins brother is normal, which one of the following information...
- Which of the following condition correctly describes the manner of determining the sex in the given example?
- 1. Short statured with small round head. 2. Furrowed tongue and partially opened mouth. 3. Palm is broad with characteristic palm...
- Choose the incorrect option for Klinerfelter's syndrome
- With respect to phenylketonuria, identify which statement is not correct?
- Genes A, B and C are linked. Genes A and B are more close than A and C. Find out the incorrect option from the given statements.
- Match the following columns. Column I: A - Non-parental gene exchange; B - Non-sister chromatids; C - Sex chromosome; D -...
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