Biology questions
20584 published questions with worked solutions.
- The Mendel crossed true breeding tall and dwarf plant varieties in his experiment. The tall character was dominant and recessive...
- Mendel's experiments were based on hybridization between two plants differing in
- Which of the following statement is/are correct regarding law of segregation?
- Mendel crossed tall and dwarf plant. In F_2-generation, both the tall and dwarf plants were produced. This shows
- Mendel found the phenotype of the F_1-heterozygote Tt was to be exactly like the __A__ parent in appearance. He proposed that in...
- The plasma membrane of the red blood cells has __A__ polymers that protrude from its surface and the kind of sugar is controlled...
- In Mendl's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr) and yellow cotyledon (YY) was...
- The law of segregation of characters is also called the law of purity of gametes because
- Dihybrid ratio of test cross 1:1:1:1 proves that
- Mendel could not find linkage because
- Sex-linked chromosomes of man are
- Which one of the following pairs of features is a good example of polygenic inheritance?
- 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...
- In given genetic basis of human blood group table find out which belongs to blood group A, B, AB and O. Table columns: S. No. |...
- 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....