Among the following which is a test cross?
TtxTt
TTxTT
TTxTt
Ttxtt
- Which disease results from the genetic inability to synthesize a single enzyme ?
- When is the sex of an offspring decided
- Mutations which are not dominant are not lost by a gene pooL This is known as
- The chromosomal theroy of heredity implies that
- DNA duplication occurs in
- When two genes are situated very close to each other in a chromosome
- Diakinesis is characterised by
- In humans, an example of sex-linked trait is
- In the Operon concept, the regulator gene regulates chemical reactions in the cell by
- A functional unit of a gene which specifies synthesis of one poly-peptide is known as
- Colour blindness is caused due to
- Among the following which is a test cross?
- The nuclear membrane completely disappears during
- Crossing over in meiosis occurs in
- Dyad is
- The number of characters investigated by Mendel was
- How many meiosis will be required to produce 102 pollen-grains ?
- Base substitutions from base analogues I are called
- The term 'meiosis' was coined bv
- The genetic constitution of an organism is known as
- The scientists who rediscovered the Mendel's laws are
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- If an individual does not breed true for its characters, it is called
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- Exhibition of superiority by a hybrid over both of its parents is called
- A giant chromosome having many chromo-nemata lying side by side all along their length is called
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- The condition in which only one allele of a pair is present is known as