Exhibition of superiority by a hybrid over both of its parents is called
heterosis
hybridization
hypostasis
dominance
- A codon is a sequence of 3 nucleolides on
- Reverse transcription was discovered by
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- Which one of the following chemical characteristics is not common to all living beings ?
- Linkage is
- Crossing over in meiosis occurs in
- The term 'meiosis' was coined bv
- Linked genes may be separated by the process of
- The nuclear membrane completely disappears during
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- Diakinesis is characterised by
- How many meiosis will be required to produce 102 pollen-grains ?
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- The number of characters investigated by Mendel was
- The first person to induce mutations was
- If an individual does not breed true for its characters, it is called
- A giant chromosome having many chromo-nemata lying side by side all along their length is called
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- The condition in which only one allele of a pair is present is known as
- The scientists who rediscovered the Mendel's laws are
- In humans, an example of sex-linked trait is
- A chemical mutagen is
- Mutations which are not dominant are not lost by a gene pooL This is known as
- Klinefelter's syndrome is developed when the chromosome in male is
- The science dealing with study of inheritance and variation is
- Exhibition of superiority by a hybrid over both of its parents is called
- In a monohybrid cross the Fi ratio of a backcross is
- Colour blindness is caused due to
- The segment of DNA which participates in crossing over is known as
- In the Operon concept, the regulator gene regulates chemical reactions in the cell by