Biology questions
20584 published questions with worked solutions.
- The genes for seven characters of pea plant that were considered in Mendel hybridization experiment are present on
- The ABO blood groups are controlled by
- When there are more than two alleles controlling the same character. These are called
- How many phenotypes and genotypes are possible in ABO blood group systems?
- Which of the following terms represent a pair of contrasting characters?
- Starch synthesis gene in pea plant in heterozygous condition produces starch grain of intermediate size. This shows
- The types of gametes formed by the genotype RrYy are
- Which of the following is best suited for the genes involved in codominance?
- Person having genotype I^A I^B would show the blood group as AB. This is because of
- In order to find out the difference types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a...
- A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotype of both the parents?
- Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under...
- In Mirabilis, a hybrid for red (RR) and white (rr) flower produces pink (Rr) flower. A plant with pink flower is crossed with...
- __A__ gene produces all gametes that are similar, while a __B__ produces two kinds of gametes each having one allele with equal...
- Law based on fact that the characters don't show any blending and both the characters are recovered as such in F_2-generation...
- Test cross is
- Mendel self-pollinated F_2-plant and found that __A__ plants continued to generate dwarf plant in __B__ and __C__ generations. He...
- Theoretically, in incomplete dominance one allele function as normal, while another allele may function as
- By seeing the ratio of F_1 and F_2-generation, Mendel proposed that something was stably passed down unchanged over successive...
- When alleles of two contrasting characters are present together, one of the character expresses itself during the cross while the...