Down's syndrome is an example of
monosomy
trisomy
triploidy
polyploidy
- The nuclear membrane completely disappears during
- The term 'meiosis' was coined bv
- Down's syndrome is an example of
- 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
- Linkage is
- Colour blindness is caused due to
- The genetic constitution of an organism is known as
- Chromosomes exhibit minimum coiling during
- The chromosomal theroy of heredity implies that
- When two genes are situated very close to each other in a chromosome
- In a monohybrid cross the Fi ratio of a backcross is
- 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…
- Klinefelter's syndrome is developed when the chromosome in male is
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- Crossing over in meiosis occurs in
- The best method to determine whether an individual is homozygous or heterozygous is
- Linked genes may be separated by the process of
- A codon is a sequence of 3 nucleolides on
- The first person to induce mutations was
- Transfer of a gene or genes through a virus is called
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- Which disease results from the genetic inability to synthesize a single enzyme ?
- A functional unit of a gene which specifies synthesis of one poly-peptide is known as
- 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…
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- DNA duplication occurs in