A codon is a sequence of 3 nucleolides on
t-RNA
m-RNA
s-RNA
hn-RNA
- In the Operon concept, the regulator gene regulates chemical reactions in the cell by
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- A chemical mutagen is
- The best method to determine whether an individual is homozygous or heterozygous is
- The nuclear membrane completely disappears during
- The chromosomal theroy of heredity implies that
- Dyad is
- Linkage is
- DNA duplication occurs in
- The number of characters investigated by Mendel was
- A giant chromosome having many chromo-nemata lying side by side all along their length is called
- Chromosomes exhibit minimum coiling during
- If an individual does not breed true for its characters, it is called
- Exhibition of superiority by a hybrid over both of its parents is called
- The science dealing with study of inheritance and variation is
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- In humans, an example of sex-linked trait is
- 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
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- Klinefelter's syndrome is developed when the chromosome in male is
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- Which one of the following chemical characteristics is not common to all living beings ?
- A codon is a sequence of 3 nucleolides on
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- The segment of DNA which participates in crossing over is known as
- Diakinesis is characterised by
- Lethal genes are those which
- In a monohybrid cross the Fi ratio of a backcross is
- Mutations which are not dominant are not lost by a gene pooL This is known as