Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- An abnormal human baby with 'XXX' sex chromosomes was born due to :
- Which of the following most appropriately describes hemophilia?
- A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F_1 plants were selfed the...
- Column - I (a) Dominance (b) Codominance (c) Pleiotropy (d) Polygenic inheritance Column - II (i) Many genes govern a single...
- Pick out the correct statements: (i) Hemophilia is a sex - linked recessive disease (ii) Down's syndrome is due to aneuploidy...
- In a testcross involving F_1 dihybrid flies, more parental - type offspring were produced than the recombinant - type offspring....
- A disease caused by an autosomal primary non-disjunction is
- Among the following characters, which one was not considered by Mendel in his experiments on pea?
- Which one from those given below is the period for Mendel's hybridization experiments?
- Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
- A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
- Variations caused by mutation, as proposed by Hugo de Vries are
- What map unit (Centimorgan) is adopted in the construction of genetic maps?
- In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F _1 generation pink flowers were obtained. When...
- The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained...
- What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile ?
- Match List I with List II : List I A. Incomplete dominance B. Co-dominance C. Pleiotropy D. Polygenic inheritance List II I....
- Which of the following statements are true with reference to the sex-determination in honeybees? A. An offspring formed from the...
- Which one of the following disorders is caused by the substitution of Glutamic acid (Glu) by Valine (Val) at the sixth position...
- The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and change in RBC shape is _____.
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