A person meets with an accident and great loss of blood has occurred. There is no time to analyse his blood group. It is safe to transfuse blood of
- Crossing over in meiosis occurs in
- Reverse transcription was discovered by
- Which one of the following chemical characteristics is not common to all living beings ?
- The term 'meiosis' was coined bv
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- Linkage is
- Transfer of a gene or genes through a virus is called
- Lethal genes are those which
- When two genes are situated very close to each other in a chromosome
- In a monohybrid cross the Fi ratio of a backcross is
- The segment of DNA which participates in crossing over is known as
- Chromosomes exhibit minimum coiling during
- Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
- A codon is a sequence of 3 nucleolides on
- Base substitutions from base analogues I are called
- Klinefelter's syndrome is developed when the chromosome in male is
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- Albinism in com plants is best described as
- The genetic constitution of an organism is known as
- In humans, an example of sex-linked trait is
- The nuclear membrane completely disappears during
- A chemical mutagen is
- Linked genes may be separated by the process of
- The best method to determine whether an individual is homozygous or heterozygous is
- The condition in which only one allele of a pair is present is known as
- In the Operon concept, the regulator gene regulates chemical reactions in the cell by
- The first person to induce mutations was
- The chromosomal theroy of heredity implies that
- When is the sex of an offspring decided
- The number of characters investigated by Mendel was