The first person to induce mutations was
Hugo de Vries
T.H. Morgan
Sturtevant
H.J. Muller
- When is the sex of an offspring decided
- Which disease results from the genetic inability to synthesize a single enzyme ?
- The nuclear membrane completely disappears during
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- Exhibition of superiority by a hybrid over both of its parents is called
- Lethal genes are those which
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- Diakinesis is characterised by
- The genetic constitution of an organism is known as
- Chromosomes exhibit minimum coiling during
- Linkage is
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- DNA duplication occurs in
- The condition in which only one allele of a pair is present is known as
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- Linked genes may be separated by the process of
- The number of characters investigated by Mendel was
- Klinefelter's syndrome is developed when the chromosome in male is
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- Down's syndrome is an example of
- A codon is a sequence of 3 nucleolides on
- Base substitutions from base analogues I are called
- A giant chromosome having many chromo-nemata lying side by side all along their length is called
- The best method to determine whether an individual is homozygous or heterozygous is
- Albinism in com plants is best described as
- Among the following which is a test cross?
- Which one of the following chemical characteristics is not common to all living beings ?
- The segment of DNA which participates in crossing over is known as
- The scientists who rediscovered the Mendel's laws are
- How many meiosis will be required to produce 102 pollen-grains ?