In a monohybrid cross the Fi ratio of a backcross is
1:1
3:1
1:2:1
9:3:3:3
- Colour blindness is caused due to
- When is the sex of an offspring decided
- Base substitutions from base analogues I are called
- The term 'meiosis' was coined bv
- In a monohybrid cross the Fi ratio of a backcross is
- In the Operon concept, the regulator gene regulates chemical reactions in the cell by
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- The best method to determine whether an individual is homozygous or heterozygous is
- Which disease results from the genetic inability to synthesize a single enzyme ?
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- Exhibition of superiority by a hybrid over both of its parents is called
- Linkage is
- Diakinesis is characterised by
- The scientists who rediscovered the Mendel's laws are
- Crossing over in meiosis occurs in
- The nuclear membrane completely disappears during
- The science dealing with study of inheritance and variation is
- DNA duplication occurs in
- Albinism in com plants is best described as
- The chromosomal theroy of heredity implies that
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- Linked genes may be separated by the process of
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- If an individual does not breed true for its characters, it is called
- Mutations which are not dominant are not lost by a gene pooL This is known as
- Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- In humans, an example of sex-linked trait is
- Down's syndrome is an example of