Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- Which of the following law was discovered first by Mendel?
- The total number of progeny obtained through dihybrid cross of Mendel is 1280 in F_2-generation. How many are recombinants?
- The F_1 generation has all tall, and F_2 ratio is 3:1, it proves
- In which one of the following, complementary gene interaction ratio of 9:7 is observed?
- In case of incomplete dominance, what will be the phenotypic ratio of F_2 generation?
- In a dihybrid cross between RRYY and rryy parents, the number of RrYy genotypes in F_2 generation will be
- The term 'Genetics' was proposed by
- Dominant lethal gene is one which
- Assertion: An organism with lethal mutation may not even develop beyond the zygote stage. Reason: All types of gene mutations are...
- When a tall pea plant (TT) is crossed with dwarf plant (tt) what will be the F_2-generation?
- Probability of genotype TTrr in F_2-generation of a dihybrid cross is
- A cross is made between parents with genotypes rrTt and Rrtt. What is the expected phenotypic ratio of the progeny?
- Crossing over is advantageous because it brings about
- Which one of the following was the rediscoverer of Mendel's work?
- In short horned cattle, genes for red (R) and white (r) coat colour occur. Cross between red (RR) and white (rr) produced (Rr)...
- In F_2-generation, quantitative inheritance 1:4:6:4:1 is obtained instead of
- Dihybrid ratio of test cross 1:1:1:1 proves that
- If a plant having yellow or round seeds was crossed with another plant having green and wrinkled seeds then F_1-progeny are in...
- The gene, which controls many characters, is called
- In case of incomplete dominance, what will be the phenotypic ratio of F_2 generation?
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