A child is bom with an extra chromosome in each of its cells. This is usually the result of
nondisjunction
crossing over
segregation
hybridization
- The number of characters investigated by Mendel was
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- Albinism in com plants is best described as
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- Which one of the following chemical characteristics is not common to all living beings ?
- The scientists who rediscovered the Mendel's laws are
- Chromosomes exhibit minimum coiling during
- Transfer of a gene or genes through a virus is called
- Reverse transcription was discovered by
- The condition in which only one allele of a pair is present is known as
- The best method to determine whether an individual is homozygous or heterozygous is
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- Dyad is
- Lethal genes are those which
- In humans, an example of sex-linked trait is
- Mutations which are not dominant are not lost by a gene pooL This is known as
- Linked genes may be separated by the process of
- In a monohybrid cross the Fi ratio of a backcross is
- If an individual does not breed true for its characters, it is called
- The segment of DNA which participates in crossing over is known as
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- Linkage is
- The term 'meiosis' was coined bv
- The first person to induce mutations was
- Diakinesis is characterised by
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- The genetic constitution of an organism is known as
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- How many meiosis will be required to produce 102 pollen-grains ?
- Klinefelter's syndrome is developed when the chromosome in male is